Vulnerabilities > CVE-2015-7256 - Cryptographic Issues vulnerability in Zyxel products
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
NONE Availability impact
NONE Summary
ZyXEL NWA1100-N, NWA1100-NH, NWA1121-NI, NWA1123-AC, and NWA1123-NI access points; P-660HN-51, P-663HN-51, VMG1312-B10A, VMG1312-B30A, VMG1312-B30B, VMG4380-B10A, VMG8324-B10A, VMG8924-B10A, VMG8924-B30A, and VSG1435-B101 DSL CPEs; PMG5318-B20A GPONs; SBG3300-N000, SBG3300-NB00, and SBG3500-N000 small business gateways; GS1900-8 and GS1900-24 switches; and C1000Z, Q1000, FR1000Z, and P8702N project models use non-unique X.509 certificates and SSH host keys.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Signature Spoofing by Key Recreation An attacker obtains an authoritative or reputable signer's private signature key by exploiting a cryptographic weakness in the signature algorithm or pseudorandom number generation and then uses this key to forge signatures from the original signer to mislead a victim into performing actions that benefit the attacker.
Nessus
NASL family Misc. NASL id SSH_HARDCODED_KEYS.NASL description The remote host is running a service that is using a publicly known SSH private key. An attacker may use this key to decrypt intercepted traffic between users and the device. A remote attacker can also perform a man-in-the-middle attack in order to gain access to the system or modify data in transit. last seen 2020-06-01 modified 2020-06-02 plugin id 121007 published 2019-01-08 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121007 title SSH Known Hard Coded Private Keys NASL family Misc. NASL id SSL_HARDCODED_KEYS.NASL description The remote host is running a service that is using a publicly known SSL / TLS private key. An attacker may use this key to decrypt intercepted traffic between users and the device. A remote attacker can also perform a man-in-the-middle attack in order to gain access to the system or modify data in transit. last seen 2020-06-01 modified 2020-06-02 plugin id 121008 published 2019-01-08 reporter This script is Copyright (C) 2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/121008 title SSL / TLS Certificate Known Hard Coded Private Keys