CVE-2017-8156 Auth bypass in B2338-168
An attacker with physical access can bypass authentication on the serial port to take control of the outdoor CPE unit.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2017-8156?
CVE-2017-8156 is a medium-severity authentication bypass vulnerability in Huawei Technologies Co., Ltd. B2338-168, published on 22 Nov 2017. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The outdoor unit of Customer Premise Equipment (CPE) product B2338-168 V100R001C00 has a no authentication vulnerability on the serial port. An attacker can access the serial port on the circuit board of the outdoor unit and log in to the CPE without authentication. Successful exploit could allow the attacker to take control over the outdoor unit.
Weakness: CWE-306
Which versions are affected by CVE-2017-8156?
It affects 1 product.
Products include Huawei B2338-168 Firmware.
How do I fix CVE-2017-8156?
No fix has been published for CVE-2017-8156 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-2017-8156 being exploited?
There is no known exploitation of CVE-2017-8156 in the wild and no public exploit code.
Other vulnerabilities in Huawei Technologies Co., Ltd. B2338-168
Sources
Also known as GHSA-fvmw-hc2m-mr64.