PT-2021-1614 · Microsoft · Sharepoint Server+1

Hph0Var + 1 · Published 2021-01-12 · Updated 2024-10-08 · CVE-2021-1641

Positive Technologies (AI Summary)

CVSS v2.0

5.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:N

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 The issue is related to insufficient input validation in Microsoft SharePoint Server, Microsoft SharePoint Foundation, and Microsoft SharePoint Enterprise Server. This can be exploited by a remote attacker using a specially crafted request to the vulnerable SharePoint server, allowing for spoofing attacks.

Recommendations For Microsoft SharePoint Server, update to a version that includes the fix for this issue. For Microsoft SharePoint Foundation, update to a version that includes the fix for this issue. For Microsoft SharePoint Enterprise Server, update to a version that includes the fix for this issue. As a temporary workaround, consider restricting access to the vulnerable server to minimize the risk of exploitation.

Fix

RCE

Weakness Enumeration

CWE-20

Related Identifiers

BDU:2021-00267

CVE-2021-1641

Affected Products

Sharepoint Server

Sharepoint Foundation

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2021-1641 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-1641 · Security Note
• https://osv.dev/vulnerability/CVE-2021-1641 · Vendor Advisory
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-1641 · Vendor Advisory
• https://bdu.fstec.ru/vul/2021-00267 · Security Note
• https://t.me/cvenotify/8555 · Telegram Post
• https://t.me/cvenotify/97488 · Telegram Post
• https://t.me/cvenotify/65706 · Telegram Post
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-1641 · Note
• https://t.me/cibsecurity/21977 · Telegram Post
• https://t.me/cibsecurity/21998 · Telegram Post