SB2021021016 - Use of insufficiently random values in FNET
Published: February 10, 2021
Security Bulletin ID
SB2021021016
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use of insufficiently random values (CVE-ID: CVE-2020-27633)
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to the ISN generator is initialized with a constant value and has constant increments. A remote attacker can interfere with traffic, spoof the connection and gain access to sensitive information.
Remediation
Install update from vendor's website.