SB2024091246 - Denial of service in Cisco IOS XR dedicated XML Agent
Published: September 12, 2024
Security Bulletin ID
SB2024091246
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Partial DoS
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Verification of Source of a Communication Channel (CVE-ID: CVE-2024-20390)
CWE-ID: CWE-940 - Improper Verification of Source of a Communication Channel
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform DoS attack.
The vulnerability exists due to improper input validation of ingress XML packets in the Dedicated XML Agent feature. A remote attacker can send specially crafted packets to the XML TCP port 38751 and perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.