SB2021032416 - Denial of service in Cisco IOS XE Software Web UI
Published: March 24, 2021
Security Bulletin ID
SB2021032416
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2021-1403)
The vulnerability allows a remote attacker to perform denial of service (DoS) attack.
The vulnerability exists in the web UI feature of Cisco IOS XE Software. A remote attacker can conduct a cross-site WebSocket hijacking (CSWSH) attack and cause denial of service.
Remediation
Install update from vendor's website.