SB2020122819 - Authentication bypass in Sympa
Published: December 28, 2020
Security Bulletin ID
SB2020122819
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authentication (CVE-ID: CVE-2020-29668)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests. A remote attacker can bypass authentication process and obtain full SOAP API access by sending any arbitrary string (except one from an expired cookie) as the cookie value to authenticateAndRun.
Remediation
Install update from vendor's website.
References
- https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=976020
- https://github.com/sympa-community/sympa/blob/6.2.59b.2/NEWS.md
- https://github.com/sympa-community/sympa/issues/1041
- https://github.com/sympa-community/sympa/pull/1044
- https://lists.debian.org/debian-lts-announce/2020/12/msg00026.html
- https://www.debian.org/security/2020/dsa-4818