SB2021060809 - Privilege escalation in Microsoft Windows NTLM
Published: June 8, 2021
Security Bulletin ID
SB2021060809
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Permissions, Privileges, and Access Controls (CVE-ID: CVE-2021-31958)
The vulnerability allows a remote attacker to escalate privileges on the system.
The vulnerability exists due to application does not properly impose security restrictions in the Windows NTLM. A remote attacker can trick a victim to visit a specially crafted server share or website, which leads to security restrictions bypass and privilege escalation.
Remediation
Install update from vendor's website.