CVEvulnerability
CVE-2017-12868
9.8 CRITICAL
Official page ↗
- Status
- Modified
- Published
- 2017-09-01
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.0 ([email protected])
- 9.8 CRITICAL — CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CVSS 2.0 ([email protected])
- 7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
- Weaknesses
- CWE-384
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 configurations
• simplesamlphp simplesamlphp (<= 1.14.13)
Related
Weakness · CWE (1)
- CWE-384 Session Fixation weakness
References
- https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html lists.debian.org
- https://simplesamlphp.org/security/201705-01 Patch, Vendor Advisory
- https://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e Issue Tracking, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2017/12/msg00007.html lists.debian.org
- https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html lists.debian.org
- https://simplesamlphp.org/security/201705-01 Patch, Vendor Advisory