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PHP

PHP static code analysis

Unique rules to find Bugs, Vulnerabilities, Security Hotspots, and Code Smells in your PHP code

  • All rules 273
  • Vulnerability42
  • Bug51
  • Security Hotspot34
  • Code Smell146
Filtered: 70 rules found
cwe
    Impact
      Clean code attribute
        1. The number of arguments passed to a function should match the number of parameters

           Bug
        2. Non-empty statements should change control flow or have at least one side-effect

           Bug
        3. Variables should be initialized before use

           Bug
        4. Server-side requests should not be vulnerable to traversing attacks

           Vulnerability
        5. Credentials should not be hard-coded

           Vulnerability
        6. Hard-coded secrets are security-sensitive

           Security Hotspot
        7. Constructing arguments of system commands from user input is security-sensitive

           Security Hotspot
        8. Allowing unfiltered HTML content in WordPress is security-sensitive

           Security Hotspot
        9. Allowing all external requests from a WordPress server is security-sensitive

           Security Hotspot
        10. WordPress theme and plugin editors are security-sensitive

           Security Hotspot
        11. Applications should not create session cookies from untrusted input

           Vulnerability
        12. Reflection should not be vulnerable to injection attacks

           Vulnerability
        13. OS commands should not be vulnerable to argument injection attacks

           Vulnerability
        14. A new session should be created during user authentication

           Vulnerability
        15. Authorizations should be based on strong decisions

           Vulnerability
        16. Allowing requests with excessive content length is security-sensitive

           Security Hotspot
        17. Cipher algorithms should be robust

           Vulnerability
        18. Encryption algorithms should be used with secure mode and padding scheme

           Vulnerability
        19. Server hostnames should be verified during SSL/TLS connections

           Vulnerability
        20. Include expressions should not be vulnerable to injection attacks

           Vulnerability
        21. Dynamic code execution should not be vulnerable to injection attacks

           Vulnerability
        22. Using clear-text protocols is security-sensitive

           Security Hotspot
        23. Manual generation of session ID is security-sensitive

           Security Hotspot
        24. HTTP request redirections should not be open to forging attacks

           Vulnerability
        25. Logging should not be vulnerable to injection attacks

           Vulnerability
        26. Server-side requests should not be vulnerable to forging attacks

           Vulnerability
        27. Deserialization should not be vulnerable to injection attacks

           Vulnerability
        28. Endpoints should not be vulnerable to reflected cross-site scripting (XSS) attacks

           Vulnerability
        29. Having a permissive Cross-Origin Resource Sharing policy is security-sensitive

           Security Hotspot
        30. Expanding archive files without controlling resource consumption is security-sensitive

           Security Hotspot
        31. Server certificates should be verified during SSL/TLS connections

           Vulnerability
        32. Signaling processes is security-sensitive

           Security Hotspot
        33. Using weak hashing algorithms is security-sensitive

           Security Hotspot
        34. Delivering code in production with debug features activated is security-sensitive

           Security Hotspot
        35. Disabling CSRF protections is security-sensitive

           Security Hotspot
        36. LDAP connections should be authenticated

           Vulnerability
        37. Cryptographic keys should be robust

           Vulnerability
        38. Weak SSL/TLS protocols should not be used

           Vulnerability
        39. Database queries should not be vulnerable to injection attacks

           Vulnerability
        40. "cgi.force_redirect" should be enabled

           Vulnerability
        41. "allow_url_fopen" and "allow_url_include" should be disabled

           Vulnerability
        42. "open_basedir" should limit file access

           Vulnerability
        43. Creating cookies without the "HttpOnly" flag is security-sensitive

           Security Hotspot
        44. XML parsers should not be vulnerable to XXE attacks

           Vulnerability
        45. Multiline blocks should be enclosed in curly braces

           Code Smell
        46. Regular expressions should not be vulnerable to Denial of Service attacks

           Vulnerability
        47. Setting loose POSIX file permissions is security-sensitive

           Security Hotspot
        48. Neither DES (Data Encryption Standard) nor DESede (3DES) should be used

           Vulnerability
        49. Cryptographic RSA algorithms should always incorporate OAEP (Optimal Asymmetric Encryption Padding)

           Vulnerability
        50. Using pseudorandom number generators (PRNGs) is security-sensitive

           Security Hotspot
        51. A secure password should be used when connecting to a database

           Vulnerability
        52. Creating cookies without the "secure" flag is security-sensitive

           Security Hotspot
        53. XPath expressions should not be vulnerable to injection attacks

           Vulnerability
        54. I/O function calls should not be vulnerable to path injection attacks

           Vulnerability
        55. LDAP queries should not be vulnerable to injection attacks

           Vulnerability
        56. Formatting SQL queries is security-sensitive

           Security Hotspot
        57. OS commands should not be vulnerable to command injection attacks

           Vulnerability
        58. Hard-coded credentials are security-sensitive

           Security Hotspot
        59. Password hashing functions should use an unpredictable salt

           Vulnerability
        60. References should not be passed to function calls

           Code Smell
        61. Unused assignments should be removed

           Code Smell
        62. All code should be reachable

           Bug
        63. Dynamically executing code is security-sensitive

           Security Hotspot
        64. "switch" statements should have "default" clauses

           Code Smell
        65. Switch cases should end with an unconditional "break" statement

           Code Smell
        66. Useless "if(true) {...}" and "if(false){...}" blocks should be removed

           Bug
        67. Track uses of "TODO" tags

           Code Smell
        68. Track uses of "FIXME" tags

           Code Smell
        69. Assignments should not be made from within sub-expressions

           Code Smell
        70. Generic exceptions ErrorException, RuntimeException and Exception should not be thrown

           Code Smell

        Encryption algorithms should be used with secure mode and padding scheme

        responsibility - trustworthy
        security
        Vulnerability
        • cwe
        • privacy

        This vulnerability exposes encrypted data to a number of attacks whose goal is to recover the plaintext.

        Why is this an issue?

        How can I fix it?

        More Info

        Encryption algorithms are essential for protecting sensitive information and ensuring secure communications in a variety of domains. They are used for several important reasons:

        • Confidentiality, privacy, and intellectual property protection
        • Security during transmission or on storage devices
        • Data integrity, general trust, and authentication

        When selecting encryption algorithms, tools, or combinations, you should also consider two things:

        1. No encryption is unbreakable.
        2. The strength of an encryption algorithm is usually measured by the effort required to crack it within a reasonable time frame.

        For these reasons, as soon as cryptography is included in a project, it is important to choose encryption algorithms that are considered strong and secure by the cryptography community.

        For AES, the weakest mode is ECB (Electronic Codebook). Repeated blocks of data are encrypted to the same value, making them easy to identify and reducing the difficulty of recovering the original cleartext.

        Unauthenticated modes such as CBC (Cipher Block Chaining) may be used but are prone to attacks that manipulate the ciphertext. They must be used with caution.

        For RSA, the weakest algorithms are either using it without padding or using the PKCS1v1.5 padding scheme.

        What is the potential impact?

        The cleartext of an encrypted message might be recoverable. Additionally, it might be possible to modify the cleartext of an encrypted message.

        Below are some real-world scenarios that illustrate possible impacts of an attacker exploiting the vulnerability.

        Theft of sensitive data

        The encrypted message might contain data that is considered sensitive and should not be known to third parties.

        By using a weak algorithm the likelihood that an attacker might be able to recover the cleartext drastically increases.

        Additional attack surface

        By modifying the cleartext of the encrypted message it might be possible for an attacker to trigger other vulnerabilities in the code. Encrypted values are often considered trusted, since under normal circumstances it would not be possible for a third party to modify them.

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