This High severity Third-Party Dependency vulnerability was introduced in versions 9.3.0, 9.4.0, 9.5.0, 9.6.0, 10.0.0, 10.1.0, 10.2.0, and 11.0.0 of Bamboo Data Center and Server.

This Third-Party Dependency vulnerability, with a CVSS Score of 8.8 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H allows an authenticated attacker to expose assets in your environment susceptible to exploitation 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 9.6: Upgrade to a release greater than or equal to 9.6.15

• Bamboo Data Center and Server 10.2: Upgrade to a release greater than or equal to 10.2.6

• Bamboo Data Center and Server 11.0: Upgrade to a release greater than or equal to 11.0.3

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).

The National Vulnerability Database provides the following description for this vulnerability: Improper Access Control vulnerability in Apache Commons.

A special BeanIntrospector class was added in version 1.9.2. This can be used to stop attackers from using the declared class property of Java enum objects to get access to the classloader. However this protection was not enabled by default. PropertyUtilsBean (and consequently BeanUtilsBean) now disallows declared class level property access by default.

This issue affects Apache Commons BeanUtils 1.x before 1.11.0, and 2.x before 2.0.0-M2.Users of the artifact commons-beanutils:commons-beanutils