CVE-2018-6521

Public Exploit

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.

9.8

CVSS

Severity: Critical

CVSS 3.0 •

CVSS 2.0 •

EPSS 0.62%

Vendor Advisory debian.org Vendor Advisory simplesamlphp.org

Affected: n/a n/a

References

Link	Tags
https://simplesamlphp.org/security/201801-03	vendor advisory
https://lists.debian.org/debian-lts-announce/2018/02/msg00008.html	mailing list exploit third party advisory
https://www.debian.org/security/2018/dsa-4127	third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-6521?: CVE-2018-6521 has been scored as a critical severity vulnerability.
How to fix CVE-2018-6521?: To fix CVE-2018-6521, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-6521 being actively exploited in the wild?: It is possible that CVE-2018-6521 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.