Medium severity · published Sep 7, 2016
CVE-2016-6670
Huawei S7700, S9300, S9700, and S12700 devices with software before V200R008C00SPC500 use random numbers with insufficient entropy to generate self-signed certificates, which…
5.3
CVSS
0.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
S1
S12700 · Huawei Firmware
v200r005c00 · source: NVD
SF
S7700 Firmware · Huawei
v200r003c00; v200r005c00 · source: NVD
SF
S9300 Firmware · Huawei
v200r003c00; v200r005c00 · source: NVD
SF
S9700 Firmware · Huawei
v200r003c00; v200r005c00 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-6670
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-6670
Mitigation
http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20160810-01-certificate-en
Third Party Advisory
http://www.securityfocus.com/bid/92438
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