#VU50855 Improper Authentication

Published: 2021-02-23

Vulnerability identifier: #VU50855

Vulnerability risk: High

CVSSv3: 7.3 [CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-29030


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Server applications / Remote access servers, VPN



The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to the authentication token is, by default, exposed in all future POST/GET requests once authenticated to the Gatemanager. A remote attacker can gain access to sensitive information, such as session identifiers and gain unauthorized access to the application.

Install updates from vendor's website.

Vulnerable software versions

GateManager: before 9.4

External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

Latest bulletins with this vulnerability