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Atlassian Confluence Flaw Being Used to Deploy Ransomware and Crypto Miners
A recently patched critical security flaw in Atlassian Confluence Server and Data Center products is being actively weaponized in real-world attacks to drop cryptocurrency miners and ransomware payloads. In at least two of the Windows-related incidents observed by cybersecurity vendor Sophos, adversaries exploited the vulnerability to deliver Cerber ransomware and a crypto miner called z0miner
A recently patched critical security flaw in Atlassian Confluence Server and Data Center products is being actively weaponized in real-world attacks to drop cryptocurrency miners and ransomware payloads.
In at least two of the Windows-related incidents observed by cybersecurity vendor Sophos, adversaries exploited the vulnerability to deliver Cerber ransomware and a crypto miner called z0miner on victim networks.
The bug (CVE-2022-26134, CVSS score: 9.8), which was patched by Atlassian on June 3, 2022, enables an unauthenticated actor to inject malicious code that paves the way of remote code execution (RCE) on affected installations of the collaboration suite. All supported versions of Confluence Server and Data Center are affected.
Other notable malware pushed as part of disparate instances of attack activity include Mirai and Kinsing bot variants, a rogue package called pwnkit, and Cobalt Strike by way of a web shell deployed after gaining an initial foothold into the compromised system.
“The vulnerability, CVE-2022-26134, allows an attacker to spawn a remotely-accessible shell, in-memory, without writing anything to the server’s local storage,” Andrew Brandt, principal security researcher at Sophos, said.
The disclosure overlaps with similar warnings from Microsoft, which revealed last week that “multiple adversaries and nation-state actors, including DEV-0401 and DEV-0234, are taking advantage of the Atlassian Confluence RCE vulnerability CVE-2022-26134.”
DEV-0401, described by Microsoft as a “China-based lone wolf turned LockBit 2.0 affiliate,” has also been previously linked to ransomware deployments targeting internet-facing systems running VMWare Horizon (Log4Shell), Confluence (CVE-2021-26084), and on-premises Exchange servers (ProxyShell).
The development is emblematic of an ongoing trend where threat actors are increasingly capitalizing on newly disclosed critical vulnerabilities rather than exploiting publicly known, dated software flaws across a broad spectrum of targets.
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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.
China suspected in assaults against enterprises running collaboration platform
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
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
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
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 before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.