SB2021032416 - Denial of service in Cisco IOS XE Software Web UI
Published: March 24, 2021
Security Bulletin ID
SB2021032416
CSH 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 vulnerability.
1) Insufficient verification of data authenticity (CVE-ID: CVE-2021-1403)
CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
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.