CVE-2022-43781 Command injection in Bitbucket Data Center

Critical 9.8 Published Updated

Attackers can execute arbitrary code via command injection in environment variables, potentially unauthenticated if public signup is enabled.

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-2022-43781?

CVE-2022-43781 is a critical command injection vulnerability in Atlassian Bitbucket Data Center, published on 17 Nov 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

There is a command injection vulnerability using environment variables in Bitbucket Server and Data Center. An attacker with permission to control their username can exploit this issue to execute arbitrary code on the system. This vulnerability can be unauthenticated if the Bitbucket Server and Data Center instance has enabled “Allow public signup”.

Weakness: CWE-77

Which versions are affected by CVE-2022-43781?

It affects 1 product.

Products include Atlassian Bitbucket.

How do I fix CVE-2022-43781?

No fix has been published for CVE-2022-43781 yet. Limit exposure of the affected software until one is available.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2022-43781 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2022-43781 exists.

Public exploit code: 1 Metasploit module.

Sources

Also known as GHSA-3883-h64p-r3xm.

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