SB2020090833 - Multiple vulnerabilities in Microsoft OneDrive for Windows
Published: September 8, 2020
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) UNIX symbolic link following (CVE-ID: CVE-2020-16851)
CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the OneDrive for Windows Desktop application improperly handles symbolic links. A local user can run a specially crafted application and delete a targeted file with an elevated status. .
Successful exploitation of this vulnerability may result in privilege escalation.
2) UNIX symbolic link following (CVE-ID: CVE-2020-16852)
CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the OneDrive for Windows Desktop application improperly handles symbolic links. A local user can run a specially crafted application and delete a targeted file with an elevated status. .
Successful exploitation of this vulnerability may result in privilege escalation.
3) UNIX symbolic link following (CVE-ID: CVE-2020-16853)
CWE-ID: CWE-61 - UNIX Symbolic Link (Symlink) Following
CVSSv4: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to the OneDrive for Windows Desktop application improperly handles symbolic links. A local user can run a specially crafted application and delete a targeted file with an elevated status. .
Successful exploitation of this vulnerability may result in privilege escalation.
Remediation
Install update from vendor's website.