Headline
Critical Vulnerability Discovered in Atlassian Bitbucket Server and Data Center
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
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 attacker with access to a public Bitbucket repository or with read permissions to a private one can execute arbitrary code by sending a malicious HTTP request,” Atlassian said in an advisory.
The shortcoming, discovered and reported by security researcher @TheGrandPew impacts all versions of Bitbucket Server and Datacenter released after 6.10.17, inclusive of 7.0.0 and newer -
- Bitbucket Server and Datacenter 7.6
- Bitbucket Server and Datacenter 7.17
- Bitbucket Server and Datacenter 7.21
- Bitbucket Server and Datacenter 8.0
- Bitbucket Server and Datacenter 8.1
- Bitbucket Server and Datacenter 8.2, and
- Bitbucket Server and Datacenter 8.3
As a temporary workaround in scenarios where the patches cannot be applied right away, Atlassian is recommending turning off public repositories using “feature.public.access=false” to prevent unauthorized users from exploiting the flaw.
“This can not be considered a complete mitigation as an attacker with a user account could still succeed,” it cautioned, meaning it could be leveraged by threat actors who are already in possession of valid credentials obtained through other means.
Users of affected versions of the software are recommended to upgrade their instances to the latest version as soon as possible to mitigate potential threats.
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Australian software company Atlassian has rolled out security updates to address two critical flaws affecting Bitbucket Server, Data Center, and Crowd products. The issues, tracked as CVE-2022-43781 and CVE-2022-43782, are both rated 9 out of 10 on the CVSS vulnerability scoring system. CVE-2022-43781, which Atlassian said was introduced in version 7.0.0 of Bitbucket Server and Data Center,
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.
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
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.
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.