#VU54869 Buffer overflow in Siemens products - CVE-2021-31893
Published: July 14, 2021
Vulnerability identifier: #VU54869
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-31893
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SIMATIC PCS 7
SIMATIC PDM
SIMATIC STEP 7
SINAMICS STARTER
SIMATIC PCS 7
SIMATIC PDM
SIMATIC STEP 7
SINAMICS STARTER
Software vendor:
Siemens
Siemens
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error when processing certain files. A remote authenticated attacker can trigger memory corruption and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.