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CVE-2022-36804: High Vulnerability in Atlassian Bitbucket

CVE-2022-36804 is a high-severity vulnerability affecting Atlassian Bitbucket, allowing remote code execution through malicious HTTP requests. Organizations must prioritize immediate patching to mitigate risks.

HIGHKnown ExploitedCVSS 8.8 · Published August 25, 2022

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CVE-2022-36804 is a high-severity vulnerability that affects multiple API endpoints in Atlassian Bitbucket Server and Data Center. This vulnerability allows remote attackers with read permissions to execute arbitrary code by sending a malicious HTTP request. This issue was reported via Atlassian's Bug Bounty Program, highlighting the potential for significant exploitation if left unaddressed.

With a CVSS score of 8.8, this vulnerability poses a serious threat to organizations utilizing affected versions of Bitbucket. The risk to organizations includes unauthorized access and control over critical components of their systems. Given the nature of the vulnerability, it is imperative that organizations act swiftly to remediate this issue.

As of now, there is confirmed exploitation, and it is included in the Known Exploited Vulnerabilities catalog, indicating its relevance in the threat landscape. Organizations should prioritize patching immediately to mitigate risks associated with this vulnerability.

The vulnerability affects various versions of Bitbucket, specifically those released prior to 7.6.17, and other specified versions. Therefore, timely updates and patches are crucial in maintaining the integrity of the systems.

In summary, CVE-2022-36804 is a critical vulnerability that organizations utilizing Bitbucket must address without delay. The potential for code execution by unauthorized users is a substantial risk that could lead to severe consequences.

Vulnerability Details

The official description states that multiple API endpoints in Atlassian Bitbucket Server and Data Center versions prior to 7.6.17, from 7.7.0 before 7.17.10, from 7.18.0 before 7.21.4, from 8.0.0 before 8.0.3, from 8.1.0 before 8.1.3, and from 8.2.0 before 8.2.2, and from 8.3.0 before 8.3.1 are vulnerable to remote code execution due to improper handling of HTTP requests.

The vulnerability has a CVSS score of 8.8, indicating a high severity level. This score reflects the potential impact on confidentiality, integrity, and availability, all of which are rated as high. Organizations utilizing these versions are at risk of significant operational disruptions if the vulnerability is exploited.

The vulnerability is classified under CWE-78 (OS Command Injection) and CWE-88 (Argument Injection or Modification), highlighting the nature of the exploitation risk. The publication date for this vulnerability was August 25, 2022.

Technical Analysis

The root cause of this vulnerability stems from insufficient validation of user input in multiple API endpoints. Attackers can exploit this flaw by crafting a malicious HTTP request that the server executes as a command. The attack vector is network-based, meaning that no physical or local access is required for exploitation.

The attack complexity is low, with attackers being able to execute the exploit without needing high privileges or user interactions. The vulnerability impacts confidentiality, integrity, and availability, with all aspects rated as high due to the potential for complete control over the affected systems.

Risk & Impact Analysis

The real-world risk associated with CVE-2022-36804 is substantial, particularly for organizations using the affected versions of Bitbucket. The ability for remote attackers to execute arbitrary code can lead to unauthorized access, data leaks, and complete system compromise.

Organizations should prioritize addressing this vulnerability due to its inclusion in the Known Exploited Vulnerabilities catalog, indicating that active exploitation is occurring in the wild. The blast radius of this vulnerability is extensive, as it affects both public and private repositories within Bitbucket, making it critical for organizations to patch immediately.

Signal

Status

Known Exploit

Yes

Public PoC

Yes

Actively Exploited

Yes

Ransomware Use

No

Affected Versions

The affected versions of Atlassian Bitbucket are detailed as follows: versions 7.0.0 before 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, from version 8.2.0 before version 8.2.2, and from version 8.3.0 before version 8.3.1.

Mitigation & Remediation

Atlassian has released patches for affected versions. Organizations should apply the necessary updates as per vendor instructions to secure their systems. For those unable to patch immediately, temporary workarounds include implementing strict network access controls and monitoring for suspicious activity related to Bitbucket API endpoints.

For further information, organizations can refer to the penetration testing services offered by AppSecure, which can help identify similar vulnerabilities.

Detection Guidance

Organizations should monitor logs for indicators of potential exploitation, such as unusual API request patterns or unexpected command executions. Behavioral anomalies in user activity should also be scrutinized to detect unauthorized access to repositories.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2022-36804 lies in its demonstration of the vulnerabilities present in API integrations within popular development tools. As organizations continue to adopt cloud-based solutions, understanding the patterns of vulnerabilities like this will be crucial for security teams.

Security teams should incorporate lessons learned from this incident into their vulnerability management programs, focusing on proactive identification and remediation of similar weaknesses.

For more insights on vulnerability management, organizations can explore the following resources: vulnerability management program design, penetration testing methodology, and continuous security testing best practices to enhance overall security posture.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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