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. CrowdSec network telemetry also shows that exploitation of CVE-2022-37042 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.

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