Latest Atlassian Confluence Flaw Exploited to Breach Jenkins Project Server

Atlassian Confluence

The maintainers of Jenkins—a popular open-source automation server software—have disclosed a security breach after unidentified threat actors gained access to one of their servers by exploiting a recently disclosed vulnerability in Atlassian Confluence service to install a cryptocurrency miner.

The “successful attack,” which is believed to have occurred last week, was mounted against its Confluence service that had been deprecated since October 2019, leading the team to take the server offline, rotate privileged credentials, and reset passwords for developer accounts.

“At this time we have no reason to believe that any Jenkins releases, plugins, or source code have been affected,” the company said in a statement published over the weekend.

The disclosure comes as the U.S. Cyber Command warned of ongoing mass exploitation attempts in the wild targeting a now-patched critical security vulnerability affecting Atlassian Confluence deployments.

Tracked as CVE-2021-26084 (CVSS score: 9.8), the flaw concerns an OGNL (Object-Graph Navigation Language) injection flaw that, in specific instances, could be exploited to execute arbitrary code on a Confluence Server or Data Center…

http://feedproxy.google.com/~r/TheHackersNews/~3/NGsy6yHe1B8/latest-atlassian-confluence-flaw.html

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