MitM attack in MicroWorld Technologies eScan

1) Cleartext transmission of sensitive information

EUVDB-ID: #VU88961

Risk: Critical

CVSSv3.1: 9.2 [CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:H/RL:O/RC:C]

CVE-ID: N/A

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

Exploit availability: No

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

External links

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

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.