SB2020111044 - Multiple vulnerabilities in Microsoft SharePoint
Published: November 10, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 6 secuirty vulnerabilities.
1) Spoofing attack (CVE-ID: CVE-2020-17015)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in Microsoft SharePoint. A remote attacker can spoof page content.
2) Information disclosure (CVE-ID: CVE-2020-16979)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in Microsoft SharePoint. A remote authenticated attacker can gain unauthorized access to sensitive information on the system.
3) Code Injection (CVE-ID: CVE-2020-17061)
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to improper input validation in Microsoft SharePoint. A remote authenticated attacker can send a specially crafted request and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
4) Spoofing attack (CVE-ID: CVE-2020-17060)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in Microsoft SharePoint. A remote authenticated attacker can spoof page content.
5) Information disclosure (CVE-ID: CVE-2020-17017)
The vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application in Microsoft SharePoint. A remote authenticated can gain unauthorized access to sensitive information on the system.
6) Spoofing attack (CVE-ID: CVE-2020-17016)
The vulnerability allows a remote attacker to perform spoofing attack.
The vulnerability exists due to incorrect processing of user-supplied data in Microsoft SharePoint. A remote authenticated attacker can spoof page content.
Remediation
Install update from vendor's website.
References
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17015
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-16979
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17061
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17060
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17017
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17016