On May 31, 2022, a critical vulnerability in Atlassian Confluence Server and Confluence Data Center was disclosed by Volexity. While conducting an incident response investigation involving internet-facing servers with the Confluence server installed, Volexity determined that the servers were compromised and attackers were launching successful remote code execution (RCE) exploits.

Recently, Atlassian issued a major security notice to all of its users about a critical vulnerability, identified as CVE-2022-26134, in its widely-used Confluence Server solution. The vulnerability would allow an unauthenticated malicious actor to execute arbitrary code on a Confluence Server or Data Center instance that could grant an attacker full command of the vulnerable server.

Over the past weekend, on June 2, Atlassian published a security advisory regarding a zero-day vulnerability in all versions of the Confluence Server and Data Center that is already being exploited in the wild. The critical severity vulnerability has received the ID of CVE-2022-26134 and a threat actor can exploit this vulnerability in order to perform unauthenticated remote code execution (RCE).

Great things happen when the academic world and the software industry work together! Today, we’d like to share a story about our recent collaboration with the CISPA Helmholtz Center for Information Security, a big science institution in Germany. Back in January, Cris Staicu Ph.D. (Tenure-Track Faculty, CISPA), contacted us about his research on NodeJS and JavaScript.

Trustwave SpiderLabs is tracking the critical-rated zero-day vulnerability CVE-2022-26134. Threat actors are reported to be actively exploiting this vulnerability in the wild. Atlassian disclosed and issued guidance for CVE-2022-26134 on June 2. Trustwave is diligently watching over our clients for exposure and associated attacks and working closely with our clients to ensure that mitigations are in place.

Trustwave SpiderLabs is tracking the critical-rated zero-day vulnerability CVE-2022-30190. Threat actors are reported to be actively exploiting this vulnerability in the wild. Microsoft disclosed and issued guidance for CVE-2022-30190 on May 30. Trustwave is diligently watching over our clients for exposure and associated attacks and working closely with our clients to ensure that mitigations are in place.

On Tuesday, May 31, 2022, Volexity responsibly disclosed a remote code execution (RCE) vulnerability to Atlassian affecting all supported versions of Confluence Server & Data Center. The Object-Graph Navigation Language (OGNL) injection vulnerability allows an unauthenticated user to execute arbitrary code on a Confluence Server or Data Center instance.

A new zero day vulnerability actively exploited in the wild has been found in Atlassian Confluence. The vulnerability CVE-2022-26134 affects all supported versions of Confluence Server and Confluence Data Center allowing an unauthenticated user to run arbitrary commands remotely. The Atlassian team confirmed the vulnerability with an official tweet and then also published a security advisory to update its customers.

If you want just to see how to find evidence of the Atlassian vulnerability in your Confluence systems, skip down to the “detections” sections. Otherwise, read on for a quick breakdown of what happened, how to detect it, and MITRE ATT&CK mappings.

Follina—while we’re sure this commune in Italy is lovely, the same can’t be said about this new vulnerability by the same name for InfoSec folks. Thanks to a zero-day bug in the Microsoft Support Diagnostic Tool, Follina is now making the headlines but for all the wrong reasons. This blog talks in detail about the zero-day vulnerability in Microsoft Support Diagnostic Tool (MSDT), popularly known as Follina.