Improper Authentication in Apache Traffic Server - CVE-2021-44759

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Main Vulnerability Database Vulnerabilities #VU63859

Improper Authentication in Apache Traffic Server - CVE-2021-44759

Published: May 31, 2022


Vulnerability identifier: #VU63859
CSH Severity: Medium
CVSS v4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-44759
CWE-ID: CWE-287
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in TLS origin validation. A remote attacker can perform MitM attack and bypass authentication process.


Affected software

Apache Traffic Server
trafficserver (Debian package)

How to mitigate CVE-2021-44759

Install updates from vendor's website.

Apache Traffic Server - addressed in versions 8.1.4, 9.1.2
trafficserver (Debian package) - addressed in versions 8.0.2+ds-1+deb10u6, 8.1.1+ds-1.1+deb11u1

External References

Related Security Bulletins