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CISA Warns of Hackers Exploiting Critical Atlassian Bitbucket Server Vulnerability
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a recently disclosed critical flaw impacting Atlassian’s Bitbucket Server and Data Center to the Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation. Tracked as CVE-2022-36804, the issue relates to a command injection vulnerability that could allow malicious actors to gain arbitrary
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a recently disclosed critical flaw impacting Atlassian’s Bitbucket Server and Data Center to the Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation.
Tracked as CVE-2022-36804, the issue relates to a command injection vulnerability that could allow malicious actors to gain arbitrary code execution on susceptible installations by sending a specially crafted HTTP request.
Successful exploitation, however, banks on the prerequisite that the attacker already has access to a public repository or possesses read permissions to a private Bitbucket repository.
“All versions of Bitbucket Server and Datacenter released after 6.10.17 including 7.0.0 and newer are affected, this means that all instances that are running any versions between 7.0.0 and 8.3.0 inclusive are affected by this vulnerability,” Atlassian noted in a late August 2022 advisory.
CISA did not provide further details about how the flaw is being exploited and how widespread exploitation efforts are, but GreyNoise said it detected evidence of in-the-wild on September 20 and 23.
As countermeasures, all Federal Civilian Executive Branch (FCEB) agencies are required to remediate the vulnerabilities by October 21, 2022 to protect networks against active threats.
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Categories: Exploits and vulnerabilities Categories: News Tags: Atlassian Tags: Bitbucket Tags: git Tags: CVE-2022-36804 Tags: RCE Tags: read permission International cybersecurity authorities are warning about the active exploitation of a vulnerability in Bitbucket Server and Data Center (Read more...) The post Actively exploited vulnerability in Bitbucket Server and Data Center appeared first on Malwarebytes Labs.
Various versions of Bitbucket Server and Data Center are vulnerable to an unauthenticated command injection vulnerability in multiple API endpoints. The /rest/api/latest/projects/{projectKey}/repos/{repositorySlug}/archive endpoint creates an archive of the repository, leveraging the git-archive command to do so. Supplying NULL bytes to the request enables the passing of additional arguments to the command, ultimately enabling execution of arbitrary commands.
Atlassian has rolled out fixes for a critical security flaw in Bitbucket Server and Data Center that could lead to the execution of malicious code on vulnerable installations. Tracked as CVE-2022-36804 (CVSS score: 9.9), the issue has been characterized as a command injection vulnerability in multiple endpoints that could be exploited via specially crafted HTTP requests. “An
Update now to protect against flaw
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.