Non-Unique X.509 Certificates and SSH Host Keys in ZyXEL Products
CVE-2015-7256

5.9MEDIUM

Key Information:

Vendor

Zyxel
Status
Nwa1100-n Firmware
Vendor
CVE Published:
28 September 2017

What is CVE-2015-7256?

Certain ZyXEL networking devices, including various models of access points, DSL CPEs, GPONs, business gateways, and switches, exhibit a security misconfiguration involving non-unique X.509 certificates and SSH host keys. This misconfiguration may lead to exposure of sensitive information and unauthorized access to network services. Organizations using these devices should prioritize the implementation of unique keys and certificates to mitigate risks associated with potential unauthorized access and data breaches.

References

http://www.kb.cert.org/vuls/id/566724
third-party-advisoryx_refsource_CERT-VN
http://www.zyxel.com/support/announcement_SSH_private_key...
x_refsource_CONFIRM

CVSS V3.1

Score:
5.9
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.