PT-2021-5203 · Microsoft · Sharepoint Server+1

Mr_Me · Published 2021-05-07 · Updated 2023-12-28 · CVE-2021-34519

Positive Technologies (AI Summary)

CVSS v2.0

6.3

Medium

Base vector

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

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

Description The issue is related to a lack of integrity check in Microsoft SharePoint Server packages. This can be exploited by a remote attacker to gain unauthorized access to protected information by replacing file contents during update downloads. The vulnerability allows attackers to affect the system.

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

Weakness Enumeration

CWE-354

Related Identifiers

BDU:2021-06005

CVE-2021-34519

ZDI-21-830

Affected Products

Sharepoint Server

Sharepoint Foundation

References · 8

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-34519 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-21-830 · Security Note
• https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2021-34519 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-34519 · Security Note
• https://bdu.fstec.ru/vul/2021-06005 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-34519 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2021-34519 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2021071338 · Note