SB2021090203 - Improper Authentication in Cisco Enterprise NFV Infrastructure Software
Published: September 2, 2021
Security Bulletin ID
SB2021090203
Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Improper Authentication (CVE-ID: CVE-2021-34746)
The vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to an error in when processing authentication requests in the TACACS+ authentication, authorization and accounting (AAA) feature. A remote attacker can inject parameters into an authentication request, bypass authentication and log in as an administrator to the affected device.
Remediation
Install update from vendor's website.