CVE-2021-31907 Missing authorization in n/a

Medium 5.3 Published Updated

Attackers can improperly change TeamCity plugins due to flawed permission checks, potentially leading to privilege escalation or code execution.

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-2021-31907?

CVE-2021-31907 is a medium-severity missing authorization vulnerability in Jetbrains Teamcity, published on 11 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In JetBrains TeamCity before 2020.2.2, permission checks for changing TeamCity plugins were implemented improperly.

Weakness: CWE-732

Which versions are affected by CVE-2021-31907?

It affects 1 product.

Products include Jetbrains Teamcity.

How do I fix CVE-2021-31907?

No fix has been published for CVE-2021-31907 yet. Limit exposure of the affected software until one is available.

Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.

Is CVE-2021-31907 being exploited?

There is no known exploitation of CVE-2021-31907 in the wild and no public exploit code.

All Jetbrains Teamcity vulnerabilities

Sources

Also known as GHSA-93ww-47xf-jrmc.

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