#VU56608 Authentication Bypass by Capture-replay


Published: 2021-09-15

Vulnerability identifier: #VU56608

Vulnerability risk: High

CVSSv3.1: 7.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-27662

CWE-ID: CWE-294

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
KT-1
Hardware solutions / Other hardware appliances

Vendor: Johnson Controls

Description

The vulnerability allows a remote attacker to bypass authentication on the target system.

The vulnerability exists due to improper authentication process. A remote attacker can perform replay attacks on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

KT-1: 3.01

CPE

External links
https://ics-cert.us-cert.gov/advisories/icsa-21-257-02-0


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.


Latest bulletins with this vulnerability