SB2021102208 - MitM attack in WinRAR
Published: October 22, 2021 Updated: November 29, 2021
Security Bulletin ID
SB2021102208
CSH Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Man-in-the-Middle (MitM) attack (CVE-ID: CVE-2021-35052)
CWE-ID: CWE-300 - Channel Accessible by Non-Endpoint ('Man-in-the-Middle')
CVSSv4: CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
The vulnerability allows a remote attacker to perform MitM attack.
The vulnerability exists in the WinRar due to usage of Microsoft Internet Explorer component to display a trial notification message in a pop-up window. A remote attacker with ability to perform ARP-spoofing attack can supply a malicious file (e.g. a .rar file) to the WinRar application.
Remediation
Install update from vendor's website.