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FortiGuard Labs is aware that the Cybersecurity & Infrastructure Security Agency (CISA) recently added CVE-2022-36804 (Atlassian Bitbucket Server and Data Center Command Injection Vulnerability) to their Known Exploited Vulnerabilities catalog. The catalog list vulnerabilities that are being actively exploited in the wild and require federal agencies to apply patches by the due date. Successfully exploiting CVE-2022-36804 allows an attacker to execute arbitrary commands.Why is this Significant?This is significant because the vulnerability is in widely used Bitbucket Server and Data Center and is being actively exploited in the wild. Successful exploitation allows a remote attacker to execute arbitrary commands.The vulnerability is rated Critical by Atlassian, has a CVSS score of 9.9, and attack complexity is listed as low.What is Bitbucket?Bitbucket is a widely used repository management and collaboration tool that provides a code storage location for developers and enables them to manage, track and control their code.When was CVE-2022-36804 Discovered?The vulnerability was disclosed by Atlassian on August 24, 2022.What is CVE-2022-36804?CVE-2022-36804 is a critical command injection vulnerability that affects Atlassian’s Bitbucket Server and Data Center. Successful exploitation of the vulnerability allows an attacker that has access to a publicly repository or has read access to a private repository to run arbitrary commands.What Version of Bitbucket Server and Datacenter does the Vulnerability Affect?The vulnerability affects the following versions of Bitbucket Server and Datacenter:7.6 prior to prior to prior to prior to prior to prior to prior to 8.3.1Has the Vendor Released an Advisory?Yes, Atlassian released an advisory on August 24, 2022.Has the Vendor Released a Patch for CVE-2022-36804?Yes, Atlassian released fixed versions on August 21, 2022.What is the Status of Protection?FortiGuard Labs has the following IPS protection in place for CVE-2022-36804:Atlassian.Bitbucket.Server.CVE-2022-36804.Command.InjectionAny Suggested Mitigation?Atlassian provided the mitigation information in the advisory. For details, see the Appendix for a link to “Bitbucket Server and Data Center Advisory 2022-08-24”.