CVE-2021-40360 Information disclosure in SIMATIC PCS 7 V8.2
An authenticated attacker can retrieve password hashes via public API and brute force them to gain unauthorized access to the server.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-40360?
CVE-2021-40360 is a high-severity vulnerability in Siemens SIMATIC PCS 7 V8.2, published on 9 Feb 2022. Any signed-in user can exploit it over the 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), 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 6). The password hash of a local user account in the remote server could be granted via public API to a user on the affected system. An authenticated attacker could brute force the password hash and use it to login to the server.
Which versions are affected by CVE-2021-40360?
It affects 2 products.
Products include Siemens Simatic Pcs 7, Siemens Simatic Wincc.
How do I fix CVE-2021-40360?
No fix has been published for CVE-2021-40360 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-40360 being exploited?
There is no known exploitation of CVE-2021-40360 in the wild and no public exploit code.
Other vulnerabilities in Siemens SIMATIC PCS 7 V8.2
Sources
Also known as GHSA-8hg6-3x59-7xjr.