#VU17627 Code Injection in Microsoft SharePoint Server - CVE-2019-0594

Vulnerability identifier: #VU17627

Vulnerability risk: Medium

CVSSv4.0: 7.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:U/U:Green]

CVE-ID: CVE-2019-0594

CWE-ID: CWE-94

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Microsoft SharePoint Server
Server applications / Application servers

Vendor: Microsoft

Description

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

The vulnerability exists due to improper input validation when processing source code markup of an application package. A remote attacker with ability to upload a malicious package to the SharePoint server can execute it on the system in the context of the SharePoint application pool and the SharePoint server farm account.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Microsoft SharePoint Server: 2010 - 2019

Microsoft SharePoint Server: 2013

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External links
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0594

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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.