Zero-day vulnerability in IPVPN

Arbitrary file upload

The vulnerability allows multiple APT actors to gain access to an unrestricted file upload function and execute arbitrary code on the system.

Vulnerability details

Advisory: SB2021111804 - Arbitrary file upload in FatPipe WARP, MPVPN and IPVPN

Vulnerable component: IPVPN

CVE-ID:

CVSSv3 score: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:H/RL:O/RC:C

CWE-ID: CWE-434 - Unrestricted Upload of File with Dangerous Type

Description:

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to insufficient validation of file during file upload in the web management interface. A remote attacker can upload a malicious file and execute it on the server.

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

External links:

About zero-day vulnerabilities

Zero-day vulnerability is an undisclosed vulnerability in software that hackers can exploit to compromise computer programs, gain unauthorized access to sensitive data, penetrate networks, etc. We consider vulnerability a zero-day when there is no solution provided from software vendor and the vulnerability is being actively exploited by malicious actors.

Zero-day candidate is a potential zero-day vulnerability in software which might have been used in targeted attacks, however there is no evidence to support this suggestion.