PT-2020-3961 · Microsoft · Sharepoint Server+1

Markus Wulftange + 1 · Published 2020-09-08 · Updated 2023-12-31 · CVE-2020-1595

Positive Technologies (AI Summary)

CVSS v3.1

9.9

Critical

Base vector

AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions: Microsoft SharePoint Server (affected versions not specified) Microsoft SharePoint Foundation (affected versions not specified) Microsoft SharePoint Enterprise Server (affected versions not specified)

Description: A remote code execution issue exists in Microsoft SharePoint due to improper protection of APIs from unsafe data input. This could allow a remote attacker to execute arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account. Exploitation requires accessing a susceptible API on an affected version of SharePoint with specially-formatted input.

Recommendations: For Microsoft SharePoint Server, update the software to a version that correctly handles deserialization of untrusted data. For Microsoft SharePoint Foundation, update the software to a version that correctly handles deserialization of untrusted data. For Microsoft SharePoint Enterprise Server, update the software to a version that correctly handles deserialization of untrusted data.

Fix

RCE

Weakness Enumeration

CWE-494

Related Identifiers

BDU:2020-04354

CVE-2020-1595

Affected Products

Sharepoint Server

Sharepoint Foundation

References · 5

• https://nvd.nist.gov/vuln/detail/CVE-2020-1595 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1595 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1595 · Security Note
• https://osv.dev/vulnerability/CVE-2020-1595 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04354 · Security Note