CVE-2022-41040: Microsoft Exchange Server Server-Side Request Forgery Vulnerability

CVE-2022-41040 · Severity: critical · CVSS 8.8 · Exploited in the wild · Published 2022-09-30

Microsoft Exchange Server is vulnerable to a Server-Side Request Forgery (SSRF) vulnerability known as 'ProxyNotShell'. An authenticated attacker can leverage this to gain elevated privileges and potentially chain it with CVE-2022-41082 for remote code execution.

Technologies: Microsoft Exchange Server. Vendors: Microsoft.

Quick answers

Is CVE-2022-41040 exploited in the wild?
Yes. CVE-2022-41040 is known to be exploited in the wild, first recorded on 30 September 2022. Treat it as urgent.
How severe is CVE-2022-41040?
Critical severity, with a CVSS score of 8.8, published 30 September 2022.
Which products and versions are affected?
Microsoft Exchange Server.
Is there a fix for CVE-2022-41040?
A patch was published on 2022-11-08: Microsoft released official patches during November Patch Tuesday. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2022-41040 attacked?
It is attacked over the network, in a network appliance.
Am I affected by CVE-2022-41040?
Check whether you run Microsoft Exchange Server. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Affected products

  • Microsoft Exchange Server

Timeline

  • 2022-09-30: disclosed: Vulnerability published and added to CISA KEV catalog.
  • 2022-09-30: exploited: Reported as exploited in the wild at the time of publication.
  • 2022-11-08: patched: Microsoft released official patches during November Patch Tuesday.

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