This High severity RCE (Remote Code Execution) vulnerability was introduced in versions 8.1.0, 8.2.0, 9.0.0, 9.1.0, 9.2.0, and 9.3.0 of Bamboo Data Center and Server. This RCE (Remote Code Execution) vulnerability, with a CVSS Score of 8.5, allows an authenticated attacker to execute arbitrary code which has high impact to confidentiality, high impact to integrity, high impact to availability, and requires no user interaction. Atlassian recommends that Bamboo Data Center and Server customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of 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 used to run Bamboo Data Center and Server. See Bamboo 9.2 Upgrade notes (https://confluence.atlassian.com/bambooreleases/bamboo-9-2-upgrade-notes-1207179212.html) Bamboo Data Center and Server 9.3: Upgrade to a release greater than or equal to 9.3.4 See the release notes ([https://confluence.atlassian.com/bambooreleases/bamboo-release-notes-1189793869.html]). You can download the latest version of Bamboo Data Center and Server from the download center ([https://www.atlassian.com/software/bamboo/download-archives]).

This vulnerability was discovered by a private user and reported via Atlassian Bug Bounty program.

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

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.