Back to Database
Status published
Critical
CVE-2017-12868
The secureCompare method in lib/SimpleSAML/Utils/Crypto.php in SimpleSAMLphp 1.14.13 and earlier,...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
THREAT MONITOR
Am I Vulnerable?
Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2017-12868
Credits & Attribution
No credits recorded in the NVD database.
References
More from simplesamlphp
View All →CVE-2025-65954
SimpleSAMLphp-casserver has an Open Redirect vulnerability via logout
Medium
4.7
CVE-2025-27773
SimpleSAMLphp SAML2 library has incorrect signature verification for HTTP-Redirect binding
High
8.6
CVE-2024-52806
SimpleSAMLphp SAML2 has an XXE in parsing SAML messages
High
8.3
CVE-2024-52596
SimpleSAMLphp xml-common XXE vulnerability
High
8.8
CVE-2023-49087
Validation of SignedInfo
Medium
6.8
Affected Vendor
simplesamlphp
View all reports →Affected Software
simplesamlphp
Vulnerable Versions:
0
Timeline
Official Publish:
September 1st, 2017
Last Modified:
August 5th, 2024
Added to House:
July 20th, 2026
CVSS Vectors
V3:
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.