PT-2021-5672 · Microsoft · Sharepoint Server+1

Published 2021-12-14 · Updated 2023-12-28 · CVE-2021-42309

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

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

Description The issue is related to improper code generation management in Microsoft SharePoint Server, allowing remote attackers to execute arbitrary code using a specially crafted request. This can be exploited by sending a malicious request to vulnerable API Endpoints, although specific endpoints are not mentioned. The estimated number of potentially affected devices worldwide is not provided, and there is no information about real-world incidents where this issue was exploited.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Incorrect Permission

Code Injection

Weakness Enumeration

CWE-732

CWE-94

Related Identifiers

BDU:2022-00111

CVE-2021-42309

ZDI-22-074

Affected Products

Sharepoint Server

Sharepoint Foundation

References · 12

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-42309 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-22-074 · Security Note
• https://osv.dev/vulnerability/CVE-2021-42309 · Vendor Advisory
• https://bdu.fstec.ru/vul/2022-00111 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-42309 · Vendor Advisory
• https://safe-surf.ru/specialists/bulletins-nkcki/672972 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42309 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2021-42309 · Security Note
• https://t.me/cvenotify/24760 · Telegram Post
• https://t.me/cvenotify/25492 · Telegram Post
• https://t.me/cvenotify/65331 · Telegram Post
• https://t.me/cvenotify/24761 · Telegram Post