#VU28998 Arbitrary file upload in FactoryTalk Linx and RSLinx Classic - CVE-2020-12005
Published: June 12, 2020
Vulnerability identifier: #VU28998
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-12005
CWE-ID: CWE-434
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
FactoryTalk Linx
RSLinx Classic
FactoryTalk Linx
RSLinx Classic
Software vendor:
Rockwell Automation
Rockwell Automation
Description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to insufficient validation of file during file upload within the communication function. A remote attacker can upload a file with bad compression, consuming all the available CPU resources, leading to a denial-of-service condition.
The following products that utilize FactoryTalk Linx Software are affected:
- Connected Components Workbench: Version 12 and prior
- ControlFLASH: Version 14 and later
- ControlFLASH Plus: Version 1 and later
- FactoryTalk Asset Centre: Version 9 and later
- FactoryTalk Linx CommDTM: Version 1 and later
- Studio 5000 Launcher: Version 31 and later
- Studio 5000 Logix Designer software: Version 32 and prior
Remediation
Install updates from vendor's website.