Infinite loop in SIMATICS S7-PLCSIM - CVE-2021-25673
Published: March 10, 2021
Vulnerability identifier: #VU51367
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-25673
CWE-ID: CWE-835
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Siemens
Affected software:
SIMATICS S7-PLCSIM
SIMATICS S7-PLCSIM
Detailed vulnerability description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to infinite loop. A remote authenticated attacker can use a specially crafted file to consume all available system resources and cause denial of service conditions.
How to mitigate CVE-2021-25673
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.