Horizon Alert
Summary of the vulnerability and why it matters
Atlassian Bitbucket Server and Data Center contain a vulnerability that allows for arbitrary code execution. This flaw resides within multiple API endpoints, and an attacker with read access to a repository can exploit it by sending a specially crafted HTTP request. The potential impact includes unauthorized code execution on affected systems.
- Vulnerable: Atlassian Bitbucket Server and Data Center API endpoints
- Flaw: Malicious HTTP requests enable code execution
- Impact: Unauthorized code execution on affected systems
Attack Path
How an attacker could exploit the issue
Remote attackers with read permissions to a Bitbucket repository can execute arbitrary code. This is achieved by sending a malicious HTTP request to vulnerable API endpoints. Successful exploitation allows attackers to gain control over the affected system.
- Exposure: Network accessible API endpoints.
- Attacker access: Read permissions on a repository.
- Trigger: Malicious HTTP request.
- Impact: Arbitrary code execution.
Live Threat
Current exploitation, exposure, and threat context
This vulnerability allows attackers to execute arbitrary code on affected systems. The ease of exploitation, combined with the potential for significant data compromise and system disruption, presents a substantial risk. Organizations using vulnerable versions of Bitbucket Server and Data Center should prioritize remediation to mitigate potential business impact.
- Attackers with low skill level.
- Requires read access to a repository.
- High business risk or urgency.
Priority actions
Operational Fix
Recommended remediation, mitigation, and detection steps
An organization's Atlassian Bitbucket Server and Data Center instances with specific versions are vulnerable to remote code execution. Attackers with read permissions can exploit this by sending a malicious HTTP request. This could lead to unauthorized code execution and compromise of systems and data.
- Identify affected Bitbucket assets.
- Restrict network access to Bitbucket.
- Apply vendor updates and verify.
- Monitor for related activity.
