SB2020060937 - Remote code execution in Microsoft Windows SMB
Published: June 9, 2020 Updated: April 27, 2023
Security Bulletin ID
SB2020060937
CSH 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 vulnerability.
1) Input validation error (CVE-ID: CVE-2020-1301)
CWE-ID: CWE-20 - Improper input validation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Green
The vulnerability allows a remote attacker to execute arbitrary code on the system.
The vulnerability exists due to the way that the Microsoft Server Message Block 1.0 (SMBv1) server handles certain requests. A remote authenticated attacker can send a specially crafted packet to a targeted SMBv1 server and execute arbitrary code on the target system.
Remediation
Install update from vendor's website.