CVE-2021-46304 Missing authorization in CP-8000 MASTER MODULE WITH I/O -25/+70°C
An attacker can retrieve sensitive debug information, including network topology, from Siemens CP-8000 modules if the web server module is activated.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-46304?
CVE-2021-46304 is a medium-severity missing authorization vulnerability in Siemens CP-8000 MASTER MODULE WITH I/O -25/+70°C, published on 10 Aug 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability has been identified in CP-8000 MASTER MODULE WITH I/O -25/+70°C (All versions), CP-8000 MASTER MODULE WITH I/O -40/+70°C (All versions), CP-8021 MASTER MODULE (All versions), CP-8022 MASTER MODULE WITH GPRS (All versions). The component allows to activate a web server module which provides unauthenticated access to its web pages. This could allow an attacker to retrieve debug-level information from the component such as internal network topology or connected systems.
Weakness: CWE-284
Which versions are affected by CVE-2021-46304?
It affects 4 products.
Products include Siemens Cp-8000 Master Module With I\/O -25\/\+70 Firmware, Siemens Cp-8000 Master Module With I\/O -40\/\+70 Firmware, Siemens Cp-8021 Master Module Firmware, Siemens Cp-8022 Master Module With Gprs Firmware.
How do I fix CVE-2021-46304?
No fix has been published for CVE-2021-46304 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2021-46304 being exploited?
There is no known exploitation of CVE-2021-46304 in the wild and no public exploit code.
Other vulnerabilities in Siemens CP-8000 MASTER MODULE WITH I/O -25/+70°C
Sources
Also known as GHSA-v82p-wrg2-wj3m.