Silent Intrusions: Godzilla Fileless Backdoors Targeting Atlassian Confluence


Trend Micro observed a new attack vector of weaponization for the vulnerability CVE-2023-22527 using the Godzilla backdoor. Following initial exploitation, a loader was loaded into the Atlassian victim server which loads a Godzilla webshell.

On January 16, 2024, Atlassian released a security advisory for CVE-2023-22527, a vulnerability that affects Confluence Data Center and Confluence Server products. In response to this, Trend Micro released its own technical analysis and coverage of the vulnerability, which has also been associated with crypto-mining activities. The vulnerability is marked critical with a Common Vulnerability Scoring System (CVSS) score of 10.

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Source: Trend Micro


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