Headline
Incoming! Atlassian Confluence attacks prompt calls for rapid patching
China suspected in assaults against enterprises running collaboration platform
John Leyden 06 June 2022 at 12:53 UTC
China suspected in assaults against enterprises running collaboration platform
Confluence Server and Data Center users are being urged to update their systems in response to a remote code execution (RCE) vulnerability that’s the target of active attacks in the wild.
The vulnerability (tracked as CVE-2022-26134) opens the door for even unauthenticated attackers to achieve RCE on unpatched systems, with all supported versions of Confluence Server and Data Center affected. End-of-life versions are also likely to be impacted, but this is unconfirmed.
Users are urged to apply patches published by Atlassian, the software developer behind Confluence, on Friday (June 3). Enterprises unable to patch should apply the recommended workarounds, as explained in an advisory by Atlassian.
CISA warning
The US Cybersecurity and Infrastructure Security Agency (CISA) is advising US federal agencies to block internet traffic to Confluence Server and Data Center installs and apply Atlassian’s patch or else remove affected instances by the close of business on Monday, June 6.
Attacks against the vulnerability on internet-facing Atlassian Confluence servers have been logged by threat response specialists at both Volexity and Rapid7’s Managed Detection and Response (MDR) team.
Catch up with the latest cyber-attack news and analysis
Volexity reports that attacks began last week on what was at the time a zero-day vulnerability in Atlassian Confluence Server. The RCE vulnerability was used to deploy an in-memory Java-based web server implant, known as ‘Behinder’, in an attempt to evade detection.
“Once Behinder was deployed, the attacker used the in-memory webshell to deploy two additional webshells to disk: CHINA CHOPPER and a custom file upload shell,” Volexity explains in a technical blog post.
The tools and technique behind the attack have allow Volexity threat researcher Paul Rascagnères to identify China as the most likely suspect.
Confluence is a popular web-based collaboration software platform. The Daily Swig asked Volexity to offer an estimate on the number of vulnerable internet-facing Confluence servers as well as speculating on the end goal of the attacks.
No word back, as yet, but we’ll update this story as and when more information comes to hand.
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This Metasploit module exploits an OGNL injection in Atlassian Confluence servers. A specially crafted URI can be used to evaluate an OGNL expression resulting in OS command execution.
Confluence suffers from a pre-authentication remote code execution vulnerability that is leveraged via OGNL injection. All 7.4.17 versions before 7.18.1 are affected.
The vulnerability remains unpatched on many versions of the collaboration tool and has potential to create a SolarWinds-type scenario.
Atlassian on Friday rolled out fixes to address a critical security flaw affecting its Confluence Server and Data Center products that have come under active exploitation by threat actors to achieve remote code execution. Tracked as CVE-2022-26134, the issue is similar to CVE-2021-26084 — another security flaw the Australian software company patched in August 2021. Both relate to a case of
Cisco Talos is monitoring reports of an actively exploited zero-day vulnerability in Confluence Data Center and Server. Confluence is a Java-based corporate Wiki employed by numerous enterprises. At this time, it is confirmed that all supported versions of Confluence are affected by this... [[ This is only the beginning! Please visit the blog for the complete entry ]]
In affected versions of Confluence Server and Data Center, an OGNL injection vulnerability exists that would allow an unauthenticated attacker to execute arbitrary code on a Confluence Server or Data Center instance. The affected versions are from 1.3.0 before 7.4.17, from 7.13.0 before 7.13.7, from 7.14.0 before 7.14.3, from 7.15.0 before 7.15.2, from 7.16.0 before 7.16.4, from 7.17.0 before 7.17.4, and from 7.18.0 before 7.18.1.
An remote code execution (RCE) vulnerability in all versions of the popular Confluence collaboration platform can be abused in credential harvesting, cyber espionage, and network backdoor attacks.
A vulnerability in Atlassian Confluence was found by performing an incident response investigation on a compromised server. The vulnerability is not yet patched. The post Unpatched Atlassian Confluence vulnerability is actively exploited appeared first on Malwarebytes Labs.
Atlassian has warned of a critical unpatched remote code execution vulnerability impacting Confluence Server and Data Center products that it said is being actively exploited in the wild. The Australian software company credited cybersecurity firm Volexity for identifying the flaw, which is being tracked as CVE-2022-26134. "Atlassian has been made aware of current active exploitation of a