SB2022092603 - Insufficient Entropy in Zyxel GS1900 series switches
Published: September 26, 2022
Security Bulletin ID
SB2022092603
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Information disclosure
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Insufficient Entropy (CVE-ID: CVE-2022-34746)
CWE-ID: CWE-331 - Insufficient Entropy
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to gain access to sensitive information on the system.
The vulnerability exists due to improper use of randomness sources with low entropy for RSA key pair generation. A remote attacker can retrieve a private key.
Remediation
Install update from vendor's website.