Zimbra Collaboration - RCE (CVE-2022-37042)

CVE-2022-37042 is a critical vulnerability in Zimbra Collaboration Suite that allows unauthenticated attackers to exploit the mboximport functionality and upload arbitrary files, potentially leading to directory traversal and remote code execution.

CrowdSec has been tracking this vulnerability and its exploits since 18th of August 2022.

CrowdSec network data shows that most actors exploiting CVE-2022-37042 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2022-37042 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2022-37042 is currently experiencing high visibility and active exploitation across the internet.

Observed exploitation attempts typically focus on URLs containing /service/extension/backup/mboximport with references to privileged accounts.