Vulnerability identifier: #VU82699

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-5399

CWE-ID: CWE-22

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
SpaceLogic C-Bus Toolkit
Hardware solutions / Firmware

Vendor: Schneider Electric

Description

The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and cause tampering of files on the personal computer running C-Bus when using the File Command.

Mitigation
Install update from vendor's website.

Vulnerable software versions

SpaceLogic C-Bus Toolkit: 1.16.3

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External links
http://download.schneider-electric.com/files?p_Doc_Ref=SEVD-2023-283-01&p_enDocType=Security+and+Safety+Notice&p_File_Name=SEVD-2023-283-01.pdf
http://www.cisa.gov/news-events/ics-advisories/icsa-23-306-06
http://www.zerodayinitiative.com/advisories/ZDI-23-1796/

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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.