Vulnerability identifier: #VU20898

Vulnerability risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-10996

CWE-ID: CWE-416

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Crimson
Client/Desktop applications / Software for system administration

Vendor: Red Lion Controls

Description

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a use-after-free error when processing CD31 files. A remote attacker can trick a victim to open a specially crafted file, that can reference memory after it has been freed and execute arbitrary code on the target system.

Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Crimson: 3.0.207 - 3111.000

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External links
http://ics-cert.us-cert.gov/advisories/icsa-19-248-01
http://www.zerodayinitiative.com/advisories/ZDI-19-783/
http://www.zerodayinitiative.com/advisories/ZDI-19-788/
http://www.zerodayinitiative.com/advisories/ZDI-19-787/
http://www.zerodayinitiative.com/advisories/ZDI-19-797/

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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.