CVE-2016-6670 : Huawei S7700, S9300, S9700, and S12700 devices with software before V200R008C00SPC500 use random numbers with insufficie

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.

Published 2016-09-07 19:28:13

Updated 2016-09-08 19:14:48

Source MITRE

View at NVD, CVE.org

Vulnerability category: Information leak

Exploit prediction scoring system (EPSS) score for CVE-2016-6670

EPSS FAQ

0.12%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 45 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-6670

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.0	MEDIUM	AV:N/AC:L/Au:N/C:P/I:N/A:N	10.0	2.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: None Availability Impact: None
5.3	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	3.9	1.4	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: Low Integrity: None Availability: None

References for CVE-2016-6670

http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160810-01-certificate-en

Security Advisory - A Security Vulnerability of Using Insecure Random Numbers to Generate Self-signed Certificates in Huawei Products
Mitigation;Vendor Advisory
http://www.securityfocus.com/bid/92438

Multiple Huawei Products CVE-2016-6670 Insecure Random Number Generation Vulnerability
Third Party Advisory;VDB Entry

Products affected by CVE-2016-6670

Huawei » S7700 Firmware » Version: V200r003c00
cpe:2.3:o:huawei:s7700_firmware:v200r003c00:*:*:*:*:*:*:*
Matching versions
When used together with: Huawei » S7700 » Version: N/A
Huawei » S7700 Firmware » Version: V200r005c00
cpe:2.3:o:huawei:s7700_firmware:v200r005c00:*:*:*:*:*:*:*
Matching versions
When used together with: Huawei » S7700 » Version: N/A
Huawei » S9700 Firmware » Version: V200r003c00
cpe:2.3:o:huawei:s9700_firmware:v200r003c00:*:*:*:*:*:*:*
Matching versions
When used together with: Huawei » S9700 » Version: N/A
Huawei » S9700 Firmware » Version: V200r005c00
cpe:2.3:o:huawei:s9700_firmware:v200r005c00:*:*:*:*:*:*:*
Matching versions
When used together with: Huawei » S9700 » Version: N/A
Huawei » S9300 Firmware » Version: V200r003c00
cpe:2.3:o:huawei:s9300_firmware:v200r003c00:*:*:*:*:*:*:*
Matching versions
When used together with: Huawei » S9300 » Version: N/A
Huawei » S9300 Firmware » Version: V200r005c00
cpe:2.3:o:huawei:s9300_firmware:v200r005c00:*:*:*:*:*:*:*
Matching versions
When used together with: Huawei » S9300 » Version: N/A
Huawei Firmware » S12700 » Version: V200r005c00
cpe:2.3:o:huawei_firmware:s12700:v200r005c00:*:*:*:*:*:*:*
Matching versions
When used together with: Huawei » S12700 » Version: N/A

Vulnerability Details : CVE-2016-6670

Exploit prediction scoring system (EPSS) score for CVE-2016-6670

CVSS scores for CVE-2016-6670

CWE ids for CVE-2016-6670

References for CVE-2016-6670

Products affected by CVE-2016-6670