CVE-2018-7711

HighCVSS 8.1/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 8.1/10CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 5, 2018
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2018

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CVE-2018-7711: High severity, CVSS 8.1 | Vulnix