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Vulnerabilities / CVE-2017-12868

critical

CVE-2017-12868

The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleS ...

Published Modified CWE 384
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
GHSA9.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD, GHSA.

Description

The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.13 and earlier, when used with PHP before 5.6, allows attackers to conduct session fixation attacks or possibly bypass authentication by leveraging missing character conversions before an XOR operation.

Affected packages and fixed versions

SourcePackageFixed in
composer::GitHub Security Advisory Composersimplesamlphp/simplesamlphp1.14.14
composer::PHP Security Advisories Databasesimplesamlphp/simplesamlphpno fix listed
debian 11simplesamlphp1.14.15-1
debian 12simplesamlphp1.14.15-1
debian 14simplesamlphp1.14.15-1
debian 7simplesamlphp1.9.2-1+deb7u1
debian 8simplesamlphp1.13.1-2+deb8u2
echosimplesamlphp1.14.15-1

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.