PT-2018-17609 · Simplesamlphp · Simplesamlphp

Published 2018-02-02 · Updated 2022-05-13 · CVE-2018-6521

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions SimpleSAMLphp versions prior to 1.15.2

Description The issue is related to the sqlauth module in SimpleSAMLphp, which relies on the MySQL utf8 charset. This charset truncates queries when it encounters four-byte characters, potentially allowing remote attackers to bypass intended access restrictions.

Recommendations For versions prior to 1.15.2, update to version 1.15.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the sqlauth module until a patch is applied.

Exploit

Fix

Related Identifiers

CVE-2018-6521

DLA-1273-1

DSA-4127-1

GHSA-QV5P-6WRC-79WG

Affected Products

Simplesamlphp

References · 27

• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/simplesamlphp/simplesamlphp/CVE-2018-6521.yaml · Exploit
• 🔥 https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html · Exploit
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-18121 · Security Note
• https://ubuntu.com/security/CVE-2018-6521 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12867 · Security Note
• https://osv.dev/vulnerability/DSA-4127-1 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-7644 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-6521 · Security Note
• https://cve.org/CVERecord?id=CVE-2018-6521 · Security Note
• https://osv.dev/vulnerability/GHSA-qv5p-6wrc-79wg · Vendor Advisory
• https://simplesamlphp.org/security/201801-03 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2018-6521 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12874 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12873 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-12869 · Security Note