PT-2023-3915 · Microsoft · Sharepoint Server+1

Zcgonvh · Published 2023-07-11 · Updated 2023-10-31 · CVE-2023-33157

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) Microsoft SharePoint Server Subscription Edition (affected versions not specified) Microsoft SharePoint Enterprise Server (affected versions not specified)

Description The issue is related to insufficient input validation in Microsoft SharePoint, allowing a remote attacker to execute arbitrary code. This can affect the system and potentially lead to further exploitation.

Recommendations For Microsoft SharePoint Server, update to a version that includes the fix for this issue. For Microsoft SharePoint Server Subscription Edition, apply the necessary configuration changes or patches as recommended by the vendor. For Microsoft SharePoint Enterprise Server, restrict access to vulnerable components until a patch is available. As a temporary workaround, consider disabling any features that rely on external input validation until the issue is resolved.

Fix

RCE

Code Injection

Weakness Enumeration

CWE-20

CWE-94

Related Identifiers

BDU:2023-04210

CVE-2023-33157

Affected Products

Sharepoint Server

Sharepoint Server Subscription Edition

References · 11

• https://bdu.fstec.ru/vul/2023-04210 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-33157 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2023-33157 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-33157 · Security Note
• https://osv.dev/vulnerability/CVE-2023-33157 · Vendor Advisory
• https://cybersecurity-help.cz/vdb/SB2023071235 · Note
• https://t.me/cybersecuritytechnologies/8897 · Telegram Post
• https://t.me/cvenotify/54332 · Telegram Post
• https://twitter.com/ET_Labs/status/1719475378241011794 · Twitter Post
• https://t.me/avleonovcom/1121 · Telegram Post
• https://t.me/avleonovcom/1124 · Telegram Post