CVE-2017-12868

CRITICAL9.8EPSS 0.76%

SimpleSAMLphp Session fixation issue and authentication bypass in the authcrypt module

發布日:2022/5/14修改日:2026/4/28

也稱為:GHSA-j96g-47x2-46hvDEBIAN-CVE-2017-12868

描述

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.

受影響套件(3)

Debian/simplesamlphpfrom 0, < 1.14.15-1
Debian/simplesamlphpfrom 0, < 1.13.1-2+deb8u2
Packagist/simplesamlphp/simplesamlphp>= 1.14.12, < 1.14.14

CVSS 分數

來源	版本	嚴重程度	向量
osv	CVSS 3.1	CRITICAL9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

參考連結(8)

ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2017-12868
ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2017-12868
PATCHhttps://github.com/simplesamlphp/simplesamlphp
WEBhttps://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2017-12868.yaml
WEBhttps://github.com/simplesamlphp/simplesamlphp/commit/4bc629658e7b7d17c9ac3fe0da7dc5df71f1b85e
WEBhttps://lists.debian.org/debian-lts-announce/2017/12/msg00007.html
WEBhttps://lists.debian.org/debian-lts-announce/2018/06/msg00017.html
WEBhttps://simplesamlphp.org/security/201705-01