PT-2020-2478 · Microsoft · Sharepoint Server+1

Published 2020-05-12 · Updated 2020-05-26 · CVE-2020-1107

Positive Technologies (AI Summary)

CVSS v3.1

5.4

Medium

Base vector

AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/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 a spoofing vulnerability that exists when Microsoft SharePoint Server does not properly sanitize a specially crafted web request to an affected SharePoint server. An authenticated attacker could exploit this by sending a specially crafted request to an affected SharePoint server. The attacker who successfully exploited the issue could then perform cross-site scripting attacks on affected systems and run script in the security context of the current user. These attacks could allow the attacker to read content that the attacker is not authorized to read, use the victim's identity to take actions on the SharePoint site on behalf of the user, such as change permissions and delete content, and inject malicious content in the browser of the user.

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

XSS

Weakness Enumeration

CWE-79

Related Identifiers

BDU:2020-02489

CVE-2020-1107

Affected Products

Sharepoint Server

Sharepoint Foundation

References · 5

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-1107 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-1107 · Security Note
• https://osv.dev/vulnerability/CVE-2020-1107 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-1107 · Security Note
• https://bdu.fstec.ru/vul/2020-02489 · Security Note