Privilege escalation in Microsoft Microsoft SharePoint Server

1) Cross-site request forgery

EUVDB-ID: #VU9314

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-11876

CWE-ID: CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Exploit availability: No

Description

The vulnerability allows a remote authenticated attacker to perform CSRF attack.

The vulnerability exists due to improper management of user sessions by Microsoft Project Server. A remote attacker can trick the victim to follow a specially crafted link typically by way of an enticement in an email or Instant Messenger message and execute arbitrary HTML and script code in user's browser in context of vulnerable website.

Successful exploitation of the vulnerability results in privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft SharePoint Server: 2016

CPE2.3

• cpe:2.3:a:microsoft:microsoft_sharepoint_server:2016:*:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11876

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.