CVE-2022-36804
Atlassian Bitbucket Server and Data Center Command Injection Vulnerability
Atlassian Bitbucket Server and Data Center
Multiple API endpoints in Atlassian Bitbucket Server and Data Center 7.0.0 before version 7.6.17, from version 7.7.0 before version 7.17.10, from version 7.18.0 before version 7.21.4, from version 8.0.0 before version 8.0.3, from version 8.1.0 before version 8.1.3, and from version 8.2.0 before version 8.2.2, and from version 8.3.0 before 8.3.1 allows remote attackers with read permissions to a public or private Bitbucket repository to execute arbitrary code by sending a malicious HTTP request. This vulnerability was reported via our Bug Bounty Program by TheGrandPew.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 30 September 2022. US federal agencies were required to remediate it by 21 October 2022.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 99.1%, which is higher than 99.9% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2022-36804 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2022-36804.
What does CVE-2022-36804 affect?
CVE-2022-36804 affects Atlassian Bitbucket Server and Data Center. Multiple API endpoints in Atlassian Bitbucket Server and Data Center 7.0.0 before version 7.6.17, from version 7.7.0 before version 7.17.10, from version 7.18.0 before version 7.21.4, from version 8.0.0 before version 8.0.3, from version 8.1.0 before version 8.1.3, and from version 8.2.0 before version 8.2.2, and from version 8.3.0 before 8.3.1 allows remote attackers with read permissions to a public or private Bitbucket repository to execute arbitrary code by sending a malicious HTTP request. This vulnerability was reported via our Bug Bounty Program by TheGrandPew.
How severe is CVE-2022-36804?
CVE-2022-36804 is rated HIGH with a CVSS base score of 8.8. EPSS puts the probability of exploitation in the next 30 days at 99.1%, higher than 99.9% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 21 October 2022.
How should organisations respond to CVE-2022-36804?
Apply the vendor patch for Atlassian Bitbucket Server and Data Center as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.