Actively exploited · Published Oct 3, 2022 · Assigned by microsoft
CVE-2022-41040Microsoft Exchange Server Elevation of Privilege Vulnerability
High 8.8 Exploited Ransomware
In plain English
A high-severity server-side request forgery in Microsoft Exchange Server 2013 Cumulative Update 23 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on September 30, 2022). It has been used in ransomware campaigns. The chance it is exploited in the next 30 days is estimated at 100.0% (higher than 99.9% of all known vulnerabilities). Ready-made attack tooling exists: Metasploit, public proof-of-concept code. Apply updates per vendor instructions.
CISA guidance
Apply updates per vendor instructions.
Federal agencies must remediate by Oct 21, 2022.
Official description
Microsoft Exchange Server Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Exchange Server 2013 Cumulative Update 23 | 15.00.0 – before 15.00.1497.044 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 22 | 15.0.0 – before 15.01.2375.037 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 11 | 15.02.0 – before 15.02.0986.036 |
| Microsoft | Microsoft Exchange Server 2019 Cumulative Update 12 | 15.02.0 – before 15.02.1118.020 |
| Microsoft | Microsoft Exchange Server 2016 Cumulative Update 23 | 15.01.0 – before 15.01.2507.016 |
Weakness: CWE-918 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
References
- Microsoft Exchange Server Elevation of Privilege Vulnerability vendor-advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-41040 x_transferred
- VU#915563 third-party-advisory, x_transferred
- http://packetstormsecurity.com/files/170066/Microsoft-Exchange-ProxyNotShell-Remote-Code-Execution.html x_transferred
- https://www.secpod.com/blog/microsoft-november-2022-patch-tuesday-patches-65-vulnerabilities-including-6-zero-days/ x_transferred
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-41040 government-resource