CVE-2021-20145 Auth bypass in Gryphon Tower router
Attackers can access the VPN network via unprotected configuration files to attack other users' devices on the local network.
- 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-2021-20145?
CVE-2021-20145 is a high-severity authentication bypass vulnerability in Gryphon Tower router, published on 9 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Gryphon Tower routers contain an unprotected openvpn configuration file which can grant attackers access to the Gryphon homebound VPN network which exposes the LAN interfaces of other users' devices connected to the same service. An attacker could leverage this to make configuration changes to, or otherwise attack victims' devices as though they were on an adjacent network.
Weakness: CWE-287
Which versions are affected by CVE-2021-20145?
It affects 1 product.
Products include Gryphonconnect Gryphon Tower Firmware.
How do I fix CVE-2021-20145?
No fix has been published for CVE-2021-20145 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2021-20145 being exploited?
There is no known exploitation of CVE-2021-20145 in the wild and no public exploit code.
Other vulnerabilities in Gryphon Tower router
Sources
Also known as GHSA-mgrc-fpr7-mq3c.