CVE-2023-22516: Critical RCE Vulnerability Discovered in Atlassian Bamboo

Technical Details of the Vulnerability

CVE-2023-22516 manifests as a Remote Code Execution (RCE) vulnerability, a type of security flaw that grants an attacker the ability to remotely execute arbitrary code on a vulnerable system. This capability empowers attackers to seize control of the system, potentially causing extensive damage to data confidentiality, integrity, and availability.

Impact Scope: Affected Bamboo Versions

The vulnerability impacts a range of Bamboo Data Center and Server versions, including:

• Bamboo Data Center and Server 8.1.0
• Bamboo Data Center and Server 8.2.0
• Bamboo Data Center and Server 9.0.0
• Bamboo Data Center and Server 9.1.0
• Bamboo Data Center and Server 9.2.0
• Bamboo Data Center and Server 9.3.0

Exploitation Complexity and Impact Severity

The vulnerability, characterized by a CVSS score of 8.5, indicates a high severity level. It can be exploited by an authenticated attacker, meaning the attacker must possess valid credentials to access the Bamboo instance. However, once access is gained, the attacker can execute arbitrary code without further user interaction.

Discovery and Remediation Measures

The vulnerability was discovered by a vigilant private user through Atlassian’s Bug Bounty program, highlighting the importance of collaborative cybersecurity efforts. To address this critical vulnerability, Atlassian strongly recommends upgrading the Bamboo Data Center and Server to the latest version. Alternatively, if immediate upgrading is not feasible, users can apply the specified supported fixed versions:

• Bamboo Data Center and Server 9.2: Upgrade to a release greater than or equal to 9.2.7.

  • JDK 1.8u121+ should be used in case Java 8 is used to run the Bamboo Data Center and Server.

• Bamboo Data Center and Server 9.3: Upgrade to a release greater than or equal to 9.3.4.