CVE-2021-27899 Weak cryptography in n/a

High 7.4 Published Updated

Improper certificate validation in Proofpoint ITM Agents allows remote attackers to intercept and alter communications via man-in-the-middle attacks.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2021-27899?

CVE-2021-27899 is a high-severity vulnerability in n/a, published on 6 Apr 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Proofpoint Insider Threat Management Agents (formerly ObserveIT Agent) for MacOS and Linux perform improper validation of the ITM Server's certificate, which enables a remote attacker to intercept and alter these communications using a man-in-the-middle attack. All versions before 7.11.1 are affected. Agents for Windows and Cloud are not affected.

Weakness: CWE-295

Which versions are affected by CVE-2021-27899?

It affects 1 product.

Products include Proofpoint Insider Threat Management.

How do I fix CVE-2021-27899?

No fix has been published for CVE-2021-27899 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-27899 being exploited?

There is no known exploitation of CVE-2021-27899 in the wild and no public exploit code.

Sources

Also known as GHSA-w2jc-6hpr-7cwc.

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