CVE-2021-33716 Information disclosure in SIMATIC CP 1543-1 (incl. SIPLUS variants)
An attacker on the local subnet can retrieve sensitive information stored in cleartext from affected Siemens SIMATIC communication processors.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-33716?
CVE-2021-33716 is a medium-severity vulnerability in Siemens SIMATIC CP 1543-1 (incl. SIPLUS variants), published on 14 Sep 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 CP 1543-1 (incl. SIPLUS variants) (All versions < V3.0), SIMATIC CP 1545-1 (All versions < V1.1). An attacker with access to the subnet of the affected device could retrieve sensitive information stored in cleartext.
Weakness: CWE-312
Which versions are affected by CVE-2021-33716?
It affects 2 products.
Products include Siemens Simatic Cp 1543-1 Firmware, Siemens Simatic Cp 1545-1 Firmware.
How do I fix CVE-2021-33716?
No fix has been published for CVE-2021-33716 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-33716 being exploited?
There is no known exploitation of CVE-2021-33716 in the wild and no public exploit code.
Other vulnerabilities in Siemens SIMATIC CP 1543-1 (incl. SIPLUS variants)
Sources
Also known as GHSA-9mhw-hmhp-8rm5.