CVE-2021-40364 Information disclosure in SIMATIC PCS 7 V8.2
Attackers with log file access can expose sensitive information, aiding further attacks on Siemens SIMATIC PCS 7 and WinCC systems.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40364?
CVE-2021-40364 is a medium-severity vulnerability in Siemens SIMATIC PCS 7 V8.2, published on 9 Nov 2021. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions < V9.0 SP3 UC04), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 5). The affected systems store sensitive information in log files. An attacker with access to the log files could publicly expose the information or reuse it to develop further attacks on the system.
Weakness: CWE-532
Which versions are affected by CVE-2021-40364?
It affects 2 products.
Products include Siemens Simatic Pcs 7, Siemens Simatic Wincc.
How do I fix CVE-2021-40364?
No fix has been published for CVE-2021-40364 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-40364 being exploited?
There is no known exploitation of CVE-2021-40364 in the wild and no public exploit code.
Other vulnerabilities in Siemens SIMATIC PCS 7 V8.2
Sources
Also known as GHSA-h2gh-jqx7-wcj7.