CVE-2018-7941 Auth bypass in iBMC

High 8.8 Published 10 May 2018 Updated 5 Aug 2024

Remote attackers can bypass authentication to upload certificates, leading to privilege escalation on Huawei iBMC systems.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2018-7941?

CVE-2018-7941 is a high-severity authentication bypass vulnerability in Huawei Technologies Co., Ltd. iBMC, published on 10 May 2018. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Huawei iBMC V200R002C60 have an authentication bypass vulnerability. A remote attacker with low privilege may craft specific messages to upload authentication certificate to the affected products. Due to improper validation of the upload authority, successful exploit may cause privilege elevation.

Weakness: CWE-287

Which versions are affected by CVE-2018-7941?

It affects 20 products.

Products include Huawei 1288h V5 Firmware, Huawei 2288h V5 Firmware, Huawei 2488 V5 Firmware, Huawei Ch121 V3 Firmware, Huawei Ch121 V5 Firmware, Huawei Ch121l V3 Firmware and 14 more.

How do I fix CVE-2018-7941?

No fix has been published for CVE-2018-7941 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-2018-7941 being exploited?

There is no known exploitation of CVE-2018-7941 in the wild and no public exploit code.

Sources

Also known as GHSA-3jmp-4qpg-7fv3.