Vulnerability Monitor

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CVE-2018-7711

HTTPRedirect.php in the saml2 library in SimpleSAMLphp before 1.15.4 has an incorrect check of return values in the signature validation utilities, allowing an attacker to get invalid signatures accepted as valid by forcing an error during validation. This occurs because of a dependency on PHP functionality that interprets a -1 error code as a true boolean value.

Published

2018-03-05T22:29:00.323

Last Modified

2024-11-21T04:12:34.550

Status

Modified

Source

[email protected]

Severity

CVSSv3.0: 8.1 (HIGH)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

  • Access Vector: NETWORK
  • Access Complexity: MEDIUM
  • Authentication: NONE
  • Confidentiality Impact: PARTIAL
  • Integrity Impact: PARTIAL
  • Availability Impact: PARTIAL
Exploitability Score

8.6

Impact Score

6.4

Weaknesses
  • Type: Primary
    CWE-347
Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application simplesamlphp simplesamlphp < 1.15.4 Yes
Application simplesamlphp saml2 < 1.10.6 Yes
Application simplesamlphp saml2 < 2.3.8 Yes
Application simplesamlphp saml2 < 3.1.4 Yes
Operating System debian debian_linux 7.0 Yes
References