VDB-289398 · CVE-2020-9086 · GCVE-0-2020-9086

Huawei 4G Router B612 UPNP Message buffer underflow

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.
4.3	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Huawei 4G Router B612 and classified as problematic. Affected is an unknown function of the component UPNP Message Handler. The manipulation results in buffer underflow. This vulnerability was named CVE-2020-9086. The attack needs to be approached within the local network. There is no available exploit.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Huawei 4G Router B612. Affected is an unknown code of the component UPNP Message Handler. The manipulation with an unknown input leads to a buffer underflow vulnerability. CWE is classifying the issue as CWE-124. The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer. This is going to have an impact on availability. CVE summarizes:

There is a buffer error vulnerability in some Huawei product. An unauthenticated attacker may send special UPNP message to the affected products. Due to insufficient input validation of some value, successful exploit may cause some service abnormal. (Vulnerability ID: HWPSIRT-2017-08234) This vulnerability has been assigned a Common Vulnerabilities and Exposures (CVE) ID: CVE-2020-9086.

The advisory is available at huawei.com. This vulnerability is traded as CVE-2020-9086 since 02/18/2020. The exploitability is told to be easy. The attack needs to be initiated within the local network. The exploitation doesn't require any form of authentication. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 01/14/2025).

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

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Productinfo

Type

Router Operating System

Vendor

Huawei

Name

4G Router B612

Version

License

commercial

Website

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

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.3

VulDB Base Score: 4.3
VulDB Temp Score: 4.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 4.3
NVD Vector: 🔍

CNA Base Score: 4.3
CNA Vector (huawei): 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer underflow
CWE: CWE-124 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

02/18/2020 🔍
12/27/2024 +1774 days 🔍
12/27/2024 +0 days 🔍
01/14/2025 +17 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: huawei-sa-20200826-01
Status: Confirmed

CVE: CVE-2020-9086 (🔍)
GCVE (CVE): GCVE-0-2020-9086
GCVE (VulDB): GCVE-100-289398

Entryinfo

Created: 12/27/2024 11:51
Updated: 01/14/2025 00:19
Changes: 12/27/2024 11:51 (63), 01/14/2025 00:19 (10)
Complete: 🔍
Cache ID: 216::103