CVE-2019-5073 Information disclosure in WAGO PFC100
An attacker can send unauthenticated packets to the iocheckd service to leak uninitialized stack data, exposing sensitive information.
- 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-2019-5073?
CVE-2019-5073 is a medium-severity vulnerability in WAGO PFC100, published on 18 Dec 2019. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An exploitable information exposure vulnerability exists in the iocheckd service "I/O-Check" functionality of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets can cause an external tool to fail, resulting in uninitialized stack data to be copied to the response packet buffer. An attacker can send unauthenticated packets to trigger this vulnerability.
Weakness: CWE-200
Which versions are affected by CVE-2019-5073?
It affects 2 products.
Products include Wago Pfc 100 Firmware, Wago Pfc 200 Firmware.
How do I fix CVE-2019-5073?
No fix has been published for CVE-2019-5073 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-5073 being exploited?
There is no known exploitation of CVE-2019-5073 in the wild and no public exploit code.
Other vulnerabilities in WAGO PFC100
Sources
Also known as GHSA-6853-r3p7-f8fv.