Microsoft Exchange Server - RCE (CVE-2022-41082)
Description
Microsoft Exchange Server Remote Code Execution Vulnerability
psychologyCrowdSec Analysis
CVE-2022-41082 is a significant vulnerability in Microsoft Exchange that enables remote code execution through crafted requests, leveraging weaknesses in the server’s handling of certain interfaces.
CrowdSec has been tracking this vulnerability and its exploits since 1st of October 2022.
Based on data from the CrowdSec network, nearly all observed exploitation of CVE-2022-41082 is fully opportunistic, with attackers indiscriminately scanning the entire internet. These attacks are automated and lack any form of target selection or reconnaissance. CrowdSec data also reveals a clear uptick in attacks involving CVE-2022-41082 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.
Attempts to exploit this vulnerability frequently focus on public-facing Exchange servers accessible over the internet.
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| Event | Date |
|---|---|
| CISA KEV | 2022-09-30 |
| Rule Released | 2022-10-01 |
| CrowdSec First Seen | 2022-10-01 |
| CVE Published | 2022-10-03 |
| CISA Remediation Deadline | 2022-10-21 |
Remediation & Protection
External References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2022-41082
- https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-detection-script
- https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days/
- https://www.vicarius.io/vsociety/posts/cve-2022-41082-microsoft-exchange-server-remote-code-execution-vulnerability-mitigation-script
- https://www.kb.cert.org/vuls/id/915563