CVE-2021-35342 Auth bypass in n/a

High 7.5 Published Updated

Attackers can retain access after logout if JWT verification cache is enabled, bypassing session termination in Mender Enterprise.

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-2021-35342?

CVE-2021-35342 is a high-severity authentication bypass vulnerability in n/a, published on 27 Aug 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The useradm service 1.14.0 (in Northern.tech Mender Enterprise 2.7.x before 2.7.1) and 1.13.0 (in Northern.tech Mender Enterprise 2.6.x before 2.6.1) allows users to access the system with their JWT token after logout, because of missing invalidation (if the JWT verification cache is enabled).

Weakness: CWE-613

Which versions are affected by CVE-2021-35342?

It affects 1 product.

Products include Northern.tech Useradm.

How do I fix CVE-2021-35342?

No fix has been published for CVE-2021-35342 yet. Limit exposure of the affected software until one is available.

Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.

Is CVE-2021-35342 being exploited?

There is no known exploitation of CVE-2021-35342 in the wild and no public exploit code.

Sources

Also known as CVE-2021-36759, GHSA-j79c-q5mh-cfrh.

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