Privilege escalation in Microsoft SharePoint Server

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU80710

Risk: Medium

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2023-36764

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote user to escalate privileges on the system.

The vulnerability exists due to application does not properly impose security restrictions in Microsoft SharePoint Server, which leads to security restrictions bypass and privilege escalation.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Microsoft SharePoint Server Subscription Edition: before 16.0.16731.20180

Microsoft SharePoint Server: before 16.0.10402.20016

Microsoft SharePoint Enterprise Server: before 16.0.5413.1001

CPE2.3

• cpe:2.3:a:microsoft:microsoft_sharepoint_server_subscription_edition:*:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_sharepoint_server:*:*:*:*:*:*:*:*
• cpe:2.3:a:microsoft:microsoft_sharepoint_enterprise_server:*:*:*:*:*:*:*:*

External links

https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2023-36764

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.