#VU88961 Cleartext transmission of sensitive information in eScan

Vulnerability identifier: #VU88961

Vulnerability risk: Critical

CVSSv4.0: 8.7 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Red]

CVE-ID: N/A

CWE-ID: CWE-319

Exploitation vector: Local network

Exploit availability: No

Vulnerable software:
eScan
Client/Desktop applications / Antivirus software/Personal firewalls

Vendor: MicroWorld Technologies

Description

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to software uses insecure communication channel within the software update functionality. A remote attacker with ability to intercept network traffic can perform MitM attack during software update and swap the update package with malicious files.

Note, the vulnerability is being actively exploited in the wild.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

eScan: All versions

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External links
https://decoded.avast.io/janrubin/guptiminer-hijacking-antivirus-updates-for-distributing-backdoors-and-casual-mining/

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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).

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.