Man-in-the-Middle (MitM) attack in WinRAR - CVE-2021-35052
Published: October 22, 2021 / Updated: November 29, 2021
Vulnerability identifier: #VU57604
CSH Severity: Low
CVSSv4.0: 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
CVE-ID: CVE-2021-35052
CWE-ID: CWE-300
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
WinRAR
WinRAR
Software vendor:
RARLAB
RARLAB
Description
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.