CVE-2017-3765 Auth bypass in Enterprise Network Operating System affecting Lenovo and IBM RackSwitch and BladeCenter Products
An authentication bypass in Lenovo and IBM network switches allows attackers to gain admin-level access via serial, Telnet, SSH, or Web interfaces.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-3765?
CVE-2017-3765 is a high-severity authentication bypass vulnerability in Enterprise Network Operating System affecting Lenovo and IBM RackSwitch and BladeCenter Products, published on 10 Jan 2018. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In Enterprise Networking Operating System (ENOS) in Lenovo and IBM RackSwitch and BladeCenter products, an authentication bypass known as "HP Backdoor" was discovered during a Lenovo security audit in the serial console, Telnet, SSH, and Web interfaces. This bypass mechanism can be accessed when performing local authentication under specific circumstances. If exploited, admin-level access to the switch is granted.
Weakness: CWE-287
Which versions are affected by CVE-2017-3765?
It affects 1 product.
Products include Lenovo Enterprise Network Operating System.
How do I fix CVE-2017-3765?
No fix has been published for CVE-2017-3765 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-2017-3765 being exploited?
There is no known exploitation of CVE-2017-3765 in the wild and no public exploit code.
Sources
Also known as GHSA-6r95-2q8q-g3c2.