Vulnerability identifier: #VU64374

Vulnerability risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-30157

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft SharePoint Server Subscription Edition
Server applications / Application servers
Microsoft SharePoint Server
Server applications / Application servers
Microsoft SharePoint Enterprise Server
Server applications / Application servers

Vendor: Microsoft

Description

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized charts data. A remote user can pass specially crafted data to the application and execute arbitrary code in the context of the SharePoint web server process.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SharePoint Server Subscription Edition: All versions

Microsoft SharePoint Server: 2019

Microsoft SharePoint Enterprise Server: 2013 Service Pack 1 - 2016

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External links
http://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2022-30157
http://www.zerodayinitiative.com/advisories/ZDI-22-871/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.