Huawei S7700/S9300/S9700/S12700 prior V200R008C00SPC500 Random Number Generator Private Key information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability was found in Huawei S7700, S9300, S9700 and S12700. It has been rated as problematic. Impacted is an unknown function of the component Random Number Generator. Performing a manipulation results in information disclosure (Private Key). This vulnerability is identified as CVE-2016-6670. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Huawei S7700, S9300, S9700 and S12700. This affects an unknown function of the component Random Number Generator. The manipulation with an unknown input leads to a information disclosure vulnerability (Private Key). CWE is classifying the issue as CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. This is going to have an impact on confidentiality. The summary by CVE is:

Huawei S7700, S9300, S9700, and S12700 devices with software before V200R008C00SPC500 use random numbers with insufficient entropy to generate self-signed certificates, which makes it easier for remote attackers to discover private keys by leveraging knowledge of a certificate.

The weakness was released 09/07/2016 by Frank Gifford (Website). It is possible to read the advisory at huawei.com. This vulnerability is uniquely identified as CVE-2016-6670 since 08/10/2016. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version V200R008C00SPC500 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityFocus (BID 92438†). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Name: Private Key
Class: Information disclosure / Private Key
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: S7700/S9300/S9700/S12700 V200R008C00SPC500

Timelineinfo

08/10/2016 🔍
08/10/2016 +0 days 🔍
09/07/2016 +28 days 🔍
09/07/2016 +0 days 🔍
09/08/2016 +1 days 🔍
09/15/2022 +2198 days 🔍

Sourcesinfo

Vendor: huawei.com

Advisory: sa-20160810-01
Researcher: Frank Gifford
Status: Not defined
Confirmation: 🔍

CVE: CVE-2016-6670 (🔍)
GCVE (CVE): GCVE-0-2016-6670
GCVE (VulDB): GCVE-100-91371
SecurityFocus: 92438 - Multiple Huawei Products CVE-2016-6670 Insecure Random Number Generation Vulnerability

Entryinfo

Created: 09/08/2016 21:59
Updated: 09/15/2022 09:30
Changes: 09/08/2016 21:59 (51), 04/12/2019 06:50 (13), 09/15/2022 09:30 (3)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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