CVE-2022-43781

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”.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 91.72% Top 5%
Vendor Advisory atlassian.com Vendor Advisory atlassian.com
Affected: Atlassian Bitbucket Data Center
Affected: Atlassian Bitbucket Server
Published at:
Updated at:

References

Link Tags
https://confluence.atlassian.com/x/Y4hXRg vendor advisory mitigation release notes
https://jira.atlassian.com/browse/BSERV-13522 patch vendor advisory issue tracking

Frequently Asked Questions

What is the severity of CVE-2022-43781?
CVE-2022-43781 has been scored as a critical severity vulnerability.
How to fix CVE-2022-43781?
To fix CVE-2022-43781, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-43781 being actively exploited in the wild?
It is possible that CVE-2022-43781 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~92% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-43781?
CVE-2022-43781 affects Atlassian Bitbucket Data Center, Atlassian Bitbucket Server.
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