Atlassian Confluence is under heavy attack
Cybersecurity researchers at the US Cyber Command (USCYBERCOM) have urged admins to immediately patch their on-premise Atlassian Confluence collaboration platform, which is at the receiving end of an ongoing attack.
USCYBERCOM put out a public notice on Twitter informing Atlassian users of an active large-scale exploitation campaign that it expects to accelerate.
“Please patch immediately if you haven’t already—this cannot wait until after the weekend,” USCYBERCOM wrote on Twitter. The flaw, tracked as CVE-2021-26084, enables threat actors to remotely execute arbitrary code on the popular workplace collaboration platform. Described as “an OGNL injection vulnerability,” the bug exists in the Atlassian Confluence Server and Confluence Data Center products, both of which are vulnerable to unauthenticated remote attackers.
