Improper Verification of Cryptographic Signature in Johnson Controls exacqVision

1) Improper Verification of Cryptographic Signature

EUVDB-ID: #VU29167

Risk: Low

CVSSv3.1: 6.1 [CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:L/I:H/A:L/E:P/RL:O/RC:C]

CVE-ID: CVE-2020-9047

CWE-ID: CWE-347 - Improper Verification of Cryptographic Signature

Exploit availability: Yes

Description

The vulnerability allows a remote user to compromise the target system.

The vulnerability exists due to the affected software does not verify the cryptographic signature for data. A remote administrator can download and run a malicious executable.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

exacqVision Enterprise System Manager: 20.03.3.0

exacqVision Web Service: 20.03.2.0

External links

http://ics-cert.us-cert.gov/advisories/icsa-20-170-01
http://www.johnsoncontrols.com/-/media/jci/cyber-solutions/product-security-advisories/2020/jci-psa-2020-7-v1-exacqvision-web-service-and-enterprise-manager.pdf?la=en&hash=704888A69F52AD699D6FA19A96C3B1B3104D3741

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

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.