VDB-118199 · CVE-2018-7942 · sa-20180523-01

Huawei iBMC Intelligent Baseboard Management Controller improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4	$5k-$25k	0.00

Summaryinfo

A vulnerability marked as critical has been reported in Huawei iBMC. This issue affects some unknown processing of the component Intelligent Baseboard Management Controller. The manipulation leads to improper authentication. This vulnerability is traded as CVE-2018-7942. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, has been found in Huawei iBMC (the affected version is unknown). This issue affects an unknown code of the component Intelligent Baseboard Management Controller. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

The bug was discovered 05/23/2018. The weakness was shared 05/24/2018 (Website). It is possible to read the advisory at huawei.com. The identification of this vulnerability is CVE-2018-7942 since 03/09/2018. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 03/17/2023).

The vulnerability was handled as a non-public zero-day exploit for at least 1 days. During that time the estimated underground price was around $5k-$25k.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Huawei

Name

iBMC

License

commercial

Website

Vendor: https://www.huawei.com/

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.4
VulDB Meta Temp Score: 7.4

VulDB Base Score: 7.3
VulDB Temp Score: 7.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

03/09/2018 🔍
05/23/2018 +75 days 🔍
05/24/2018 +0 days 🔍
05/24/2018 +0 days 🔍
05/25/2018 +1 days 🔍
03/17/2023 +1757 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: sa-20180523-01
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-7942 (🔍)
GCVE (CVE): GCVE-0-2018-7942
GCVE (VulDB): GCVE-100-118199
X-Force: 143686

Entryinfo

Created: 05/25/2018 08:19
Updated: 03/17/2023 08:49
Changes: 05/25/2018 08:19 (55), 02/08/2020 17:25 (2), 03/17/2023 08:47 (3), 03/17/2023 08:49 (1)
Complete: 🔍
Cache ID: 216::103