Microsoft Exchange Server 2013/2016/2019 ProxyNotShell server-side request forgery

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.5$0-$5k0.08

A vulnerability has been found in Microsoft Exchange Server 2013/2016/2019 (Groupware Software) and classified as critical. This vulnerability affects an unknown part. The manipulation with an unknown input leads to a server-side request forgery vulnerability. The CWE definition for the vulnerability is CWE-918. The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was published 09/30/2022. The advisory is available at msrc-blog.microsoft.com. This vulnerability was named CVE-2022-41040. Technical details are unknown but a public exploit is available.

It is declared as highly functional. It is possible to download the exploit at github.com. As 0-day the estimated underground price was around $25k-$100k.

It is possible to mitigate the problem by applying the configuration setting .

Productinfo

Type

Vendor

Name

License

  • commercial

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.5

VulDB Base Score: 6.3
VulDB Temp Score: 6.2
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (Microsoft Corporation): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Server-side request forgery
CWE: CWE-918
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Access: Public
Status: Highly functional
Download: 🔒

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Config
Status: 🔍

0-Day Time: 🔒

Timelineinfo

09/19/2022 CVE reserved
09/30/2022 +11 days Advisory disclosed
09/30/2022 +0 days VulDB entry created
11/19/2022 +50 days VulDB last update

Sourcesinfo

Vendor: microsoft.com

Advisory: msrc-blog.microsoft.com
Status: Confirmed

CVE: CVE-2022-41040 (🔒)
scip Labs: https://www.scip.ch/en/?labs.20161013

Entryinfo

Created: 09/30/2022 11:18 AM
Updated: 11/19/2022 08:40 PM
Changes: 09/30/2022 11:18 AM (37), 09/30/2022 11:20 AM (1), 10/05/2022 03:35 PM (1), 10/29/2022 08:14 AM (2), 10/29/2022 08:15 AM (12), 11/19/2022 08:40 PM (2)
Complete: 🔍

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