Vulnerability identifier: #VU59313

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-2021-44440

CWE-ID: CWE-119

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
JT Utilities
Other software / Other software solutions
JTTK
Other software / Other software solutions

Vendor:

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error while parsing specially crafted JT files. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

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External links
http://ics-cert.us-cert.gov/advisories/icsa-21-350-17
http://cert-portal.siemens.com/productcert/pdf/ssa-802578.pdf

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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.