SB2018020211 - Input validation error in SimpleSAMLphp
Published: February 2, 2018 Updated: August 8, 2020
Security Bulletin ID
SB2018020211
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2018-6521)
The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.
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.
Remediation
Install update from vendor's website.