XML External Entity injection in Rockwell Automation software products

1) XML External Entity injection

EUVDB-ID: #VU61728

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1018

CWE-ID: CWE-611 - Improper Restriction of XML External Entity Reference ('XXE')

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied XML input within the ccwsln files. A remote attacker can trick a victim to open a specially crafted solution file and view contents of arbitrary files on the system or initiate requests to external systems.

Successful exploitation of the vulnerability may allow an attacker to view contents of arbitrary file on the server or perform network scanning of internal and external infrastructure.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Connected Components Workbench: 12.00.00

Safety Instrumented Systems Workstation: 1.1

ISaGRAF Workbench: 6.6.9

External links

http://ics-cert.us-cert.gov/advisories/icsa-22-088-01
http://www.zerodayinitiative.com/advisories/ZDI-22-584/
http://www.zerodayinitiative.com/advisories/ZDI-22-585/

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.