CVE-2021-38161 Not validating origin TLS certificate

High 8.1 Published Updated

Attackers can perform man-in-the-middle attacks due to improper TLS origin certificate validation in Apache Traffic Server.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2021-38161?

CVE-2021-38161 is a high-severity vulnerability in Apache Traffic Server, published on 3 Nov 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Improper Authentication vulnerability in TLS origin verification of Apache Traffic Server allows for man in the middle attacks. This issue affects Apache Traffic Server 8.0.0 to 8.0.8.

Weakness: CWE-287

Which versions are affected by CVE-2021-38161?

It affects 2 products.

Products include Apache Traffic Server, Debian Debian Linux.

How do I fix CVE-2021-38161?

Upgrade to a fixed version.

Is CVE-2021-38161 being exploited?

There is no known exploitation of CVE-2021-38161 in the wild and no public exploit code.

All Apache Traffic Server vulnerabilities

Sources

Also known as DEBIAN-CVE-2021-38161, GHSA-wp25-8fm6-33wm, UBUNTU-CVE-2021-38161.

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