#VU49228 Incorrect Implementation of Authentication Algorithm in UNIVERGE SV9500 and UNIVERGE SV8500 - CVE-2020-5686
Published: January 4, 2021
Vulnerability identifier: #VU49228
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-5686
CWE-ID: CWE-303
Exploitation vector: Adjecent network
Exploit availability:
No public exploit available
Vulnerable software:
UNIVERGE SV9500
UNIVERGE SV8500
UNIVERGE SV9500
UNIVERGE SV8500
Software vendor:
NEC Corporation
NEC Corporation
Description
The vulnerability allows a remote attacker to to bypass authentication process.
The vulnerability exists due to incorrect implementation of authentication algorithm. A remote attacker on the local network can send a specially crafted request, access the remote system maintenance feature and disclose sensitive information.
Remediation
Install updates from vendor's website.