CVE-2022-43781

CRITICALCVSS 9.8/10EPSS 98.04%

Last modified

CVE-2022-43781 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. 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. EPSS estimates a 98.04% chance of exploitation in the next 30 days.

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”.

Metrics

CVSS 3.1
9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
98.04%

99.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

VendorProductVersions
AtlassianBitbucket>= 7.0.0, < 7.6.19
AtlassianBitbucket>= 7.7.0, < 7.17.12
AtlassianBitbucket>= 7.18.0, < 7.21.6
AtlassianBitbucket>= 7.22.0, < 8.0.5
AtlassianBitbucket>= 8.1.0, < 8.1.5
AtlassianBitbucket>= 8.2.0, < 8.2.4
AtlassianBitbucket>= 8.3.0, < 8.3.3
AtlassianBitbucket>= 8.4.0, < 8.4.2

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2022-43781?
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”.
How severe is CVE-2022-43781?
CVE-2022-43781 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 98.04% probability of exploitation in the next 30 days.
How do I fix CVE-2022-43781?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-43781?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST