MitM attack in WinZip

1) Cleartext transmission of sensitive information

EUVDB-ID: #VU48924

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-28003

CWE-ID: CWE-319 - Cleartext Transmission of Sensitive Information

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to WinZIP uses insecure HTTP protocol to display HTML content and deliver software updates. A remote attacker with ability to interfere with network traffic can perform Man-in-the-Middle (MitM) attack and execute arbitrary JavaScript code or supply a malicious binary during software update.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

WinZip: 18.5 - 24.0

External links

http://www.trustwave.com/en-us/resources/security-resources/security-advisories/?fid=28202

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to open a a specially crafted archive.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.