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CVE-2018-7711

nvd nist
Published: Mar 5, 2018Modified: Jun 17, 2026

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8.1
Vector
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Exploitability: 2.2 / Impact: 5.9
Source: NVD

Description

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.

Affected (5)

Simplesamlphp
2 products
Simplesamlphp
Saml2
Debian
1 product
Debian Linux
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Simplesamlphp
Before 1.15.4
Configuration B
3 vulnerable
Vulnerable SoftwareAffected Versions
Simplesamlphp
Saml2
From 1.0.0 to 1.10.6
Saml2
From 2.0.0 to 2.3.8
Saml2
From 3.0.0 to 3.1.4
Configuration C
1 vulnerable
Vulnerable SoftwareAffected Versions
Debian Linux
Version 7.0

Related CWEs

CWE-347
Improper Verification of Cryptographic Signature
The product does not verify, or incorrectly verifies, the cryptographic signature for data.

References (6)

Source: cve@mitre.org
Patch
Source: cve@mitre.org
Third Party Advisory
Source: cve@mitre.org
Vendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Patch
Source: af854a3a-2127-422b-91ae-364da2661108
Third Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
Vendor Advisory

Timeline

No history available yet.