PT-2020-2342 · Microsoft · Sharepoint Server

Published 2020-05-12 · Updated 2025-02-28 · CVE-2020-1099

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

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

Description The issue is related to the failure to protect the web page structure, which can lead to a cross-site scripting attack. An authenticated attacker could exploit this by sending a specially crafted request to an affected server, allowing them to perform cross-site scripting attacks, read unauthorized content, use the victim's identity to take actions on the site, and inject malicious content into the user's browser.

Recommendations For Microsoft SharePoint Server, update to a version that properly sanitizes web requests to prevent cross-site scripting attacks. For Microsoft SharePoint Enterprise Server, apply security measures to protect against specially crafted requests that could lead to cross-site scripting attacks. As a temporary workaround, consider restricting access to sensitive areas of the SharePoint site to minimize the risk of exploitation.

Fix

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2020-02310

CVE-2020-1099

Affected Products

Sharepoint Server

References · 9

• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1099 · Security Note
• https://osv.dev/vulnerability/CVE-2020-1099 · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-02310 · Security Note
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1099 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-1099 · Security Note
• https://t.me/cvenotify/112877 · Telegram Post
• https://t.me/cvenotify/112880 · Telegram Post
• https://t.me/cvenotify/112879 · Telegram Post
• https://t.me/cvenotify/112878 · Telegram Post