CVE-2018-6521 Information

Description

The sqlauth module in SimpleSAMLphp before 1.15.2 relies on the MySQL utf8 charset which truncates queries upon encountering four-byte characters. There might be a scenario in which this allows remote attackers to bypass intended access restrictions.

CVSS Vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Reference

https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html https://simplesamlphp.org/security/201801-03 https://www.debian.org/security/2018/dsa-4127

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

9.8