CVE-2021-20997 WAGO: Managed Switches: Unauthorized access to password hashes
Attackers can read password hashes of all web-based management users on WAGO managed switches, potentially leading to credential compromise.
- 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-2021-20997?
CVE-2021-20997 is a high-severity vulnerability in WAGO 0852-0303, published on 13 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In multiple managed switches by WAGO in different versions it is possible to read out the password hashes of all Web-based Management users.
Weakness: CWE-522
Which versions are affected by CVE-2021-20997?
It affects 5 products.
Products include Wago 0852-0303 Firmware, Wago 0852-1305\/000-001 Firmware, Wago 0852-1305 Firmware, Wago 0852-1505\/000-001 Firmware, Wago 0852-1505 Firmware.
How do I fix CVE-2021-20997?
No fix has been published for CVE-2021-20997 yet. Limit exposure of the affected software until one is available.
Is CVE-2021-20997 being exploited?
There is no known exploitation of CVE-2021-20997 in the wild and no public exploit code.
Other vulnerabilities in WAGO 0852-0303
- CVE-2021-20998 WAGO: Managed Switches: Unauthorized creation of user accounts
- CVE-2021-20994 WAGO: Managed Switches: Reflected Cross-site Scripting
- CVE-2021-20993 WAGO: Managed Switches: Exposure of sensitive information through directory listing
- CVE-2021-20995 WAGO: Managed Switches: Storage of user credentials in a cookie
- CVE-2021-20996 WAGO: Managed Switches: Unsecure Cookie settings
Sources
Also known as GHSA-9w62-6mhp-433w.