External Control of File Name or Path in TIA Portal - CVE-2023-26293
Published: April 11, 2023
Vulnerability identifier: #VU74816
CSH Severity: High
CVSS v4: 8.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2023-26293
CWE-ID: CWE-73
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to create or overwrite arbitrary files.
The vulnerability exists due to improper input validation of path names inside PC system configuration files. A remote attacker can trick the victim to open a specially crafted PC system configuration file and create or overwrite arbitrary files on the system.
Affected software
TIA Portal
How to mitigate CVE-2023-26293
Install updates from vendor's website.
TIA Portal - update to 18 Update 1