Description
Bamboo used a version of Struts 2 that was vulnerable to [CVE-2017-5638|https://cwiki.apache.org/confluence/display/WW/S2-045]. Attackers can use this vulnerability to execute Java code of their choice on systems that have a vulnerable version of Bamboo
Affected versions:
Fix:
Hotfix:
The preferred fix is to upgrade your Bamboo using one of the links from the Fix section. If you cannot schedule an upgrade immediately, you can replace the affected library as a temporary workaround.
To replace the library, remove the existing struts2-core library from $BAMBOO_DIR/WEB-INF/lib, replace it with one matching your Bamboo version and restart your Bamboo server. This temporary solution is provided only for your convenience and an upgrade to an official Bamboo release should be scheduled as soon as possible.
For additional details see the [full advisory|https://confluence.atlassian.com/x/_slDN].