CVE-2018-7942 Auth bypass in 1288H V5; 2288H V5; 2488 V5; CH121 V3; CH121L V3; CH121L V5; CH121 V5; CH140 V3; CH140L V3; CH220 V3; CH222 V3; CH242 V3; CH242 V5; RH1288 V3; RH2288 V3; RH2288H V3; XH310 V3; XH321 V3; XH321 V5; XH620 V3

High 7.5 Published 24 May 2018 Updated 5 Aug 2024

Unauthenticated remote attackers can bypass authentication on Huawei server iBMC to leak sensitive information.

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-2018-7942?

CVE-2018-7942 is a high-severity authentication bypass vulnerability in Huawei Technologies Co., Ltd. 1288H V5; 2288H V5; 2488 V5; CH121 V3; CH121L V3; CH121L V5; CH121 V5; CH140 V3; CH140L V3; CH220 V3; CH222 V3; CH242 V3; CH242 V5; RH1288 V3; RH2288 V3; RH2288H V3; XH310 V3; XH321 V3; XH321 V5; XH620 V3, published on 24 May 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The iBMC (Intelligent Baseboard Management Controller) of some Huawei servers have an authentication bypass vulnerability. An unauthenticated, remote attacker may send some specially crafted messages to the affected products. Due to improper authentication design, successful exploit may cause some information leak.

Which versions are affected by CVE-2018-7942?

It affects 7 products.

Products include Huawei 1288h V5 Firmware, Huawei 2288h V5 Firmware, Huawei 2488 V5 Firmware, Huawei Ch121 V3 Firmware, Huawei Ch121l V3 Firmware, Huawei Ch121l V5 Firmware and 1 more.

How do I fix CVE-2018-7942?

No fix has been published for CVE-2018-7942 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-2018-7942 being exploited?

There is no known exploitation of CVE-2018-7942 in the wild and no public exploit code.

Sources

Also known as GHSA-87gh-g484-3wp7.