CVE-2019-5135 Information disclosure in WAGO PFC100 Firmware
An attacker can exploit a timing discrepancy in the WBM web application to disclose hashed user credentials on WAGO PFC controllers.
- 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-2019-5135?
CVE-2019-5135 is a medium-severity vulnerability in WAGO PFC100 Firmware, published on 10 Mar 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An exploitable timing discrepancy vulnerability exists in the authentication functionality of the Web-Based Management (WBM) web application on WAGO PFC100/200 controllers. The WBM application makes use of the PHP crypt() function which can be exploited to disclose hashed user credentials. This affects WAGO PFC200 Firmware version 03.00.39(12) and version 03.01.07(13), and WAGO PFC100 Firmware version 03.00.39(12).
Weakness: CWE-327
Which versions are affected by CVE-2019-5135?
It affects 2 products.
Products include Wago Pfc100 Firmware, Wago Pfc200 Firmware.
How do I fix CVE-2019-5135?
No fix has been published for CVE-2019-5135 yet. Limit exposure of the affected software until one is available.
Is CVE-2019-5135 being exploited?
There is no known exploitation of CVE-2019-5135 in the wild and no public exploit code.
Other vulnerabilities in WAGO PFC100 Firmware
Sources
Also known as GHSA-pgq5-f878-vwpf.