Vulnerability in Php

CVE-2017-12868

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.

EPSS: 0.021 (80.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-12868?
CVE-2017-12868 is a critical-severity vulnerability in Php, classified under Session Fixation. CVSS score: 9.8/10. Published 2017-09-01.
How severe is CVE-2017-12868?
Critical severity. CVSS v3 base score is 9.8 out of 10.