#VU51921 Deserialization of Untrusted Data in FactoryTalk AssetCentre - CVE-2021-27466

Vulnerability identifier: #VU51921

Vulnerability risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-27466

CWE-ID: CWE-502

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
FactoryTalk AssetCentre
Server applications / Other server solutions

Vendor: Rockwell Automation

Description

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

The vulnerability exists due to insecure input validation when processing serialized data in the ArchiveService.rem service. A remote attacker can pass specially crafted data to the application 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

FactoryTalk AssetCentre: 10.00

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External links
https://ics-cert.us-cert.gov/advisories/icsa-21-091-01

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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.