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.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 7.5 HIGH

9.8^/10

CVSS v3.0 : CRITICAL

V3 Legend

Vector : AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

7.5^/10

CVSS v2.0 : HIGH

V2 Legend

Vector : AV:N/AC:L/Au:N/C:P/I:P/A:P

Exploitability : 10.0 / Impact : 6.4

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
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
https://lists.debian.org/debian-lts-announce/2018/06/msg00017.html

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:simplesamlphp:simplesamlphp:*:*:*:*:*:*:*:*

cpe:2.3:a:php:php:*:*:*:*:*:*:*:*

Information

Published : 2017-09-01 06:29

Updated : 2018-06-30 18:29

NVD link : CVE-2017-12868

Mitre link : CVE-2017-12868

JSON object : View

CWE

CWE-384

Session Fixation

Products Affected

simplesamlphp

simplesamlphp

php

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9.8 /10