CVE-2024-20390: Cisco IOS XR Software Dedicated XML Agent TCP Denial of Service Vulnerability
First published: Wed Sep 11 2024(Updated: )
A vulnerability in the Dedicated XML Agent feature of Cisco IOS XR Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) on XML TCP listen port 38751. This vulnerability is due to a lack of proper error validation of ingress XML packets. An attacker could exploit this vulnerability by sending a sustained, crafted stream of XML traffic to a targeted device. A successful exploit could allow the attacker to cause XML TCP port 38751 to become unreachable while the attack traffic persists.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco IOS XRv 9000 | <24.1.2 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-20390?
CVE-2024-20390 is considered a high severity vulnerability allowing denial of service attacks.
How do I fix CVE-2024-20390?
To fix CVE-2024-20390, upgrade the Cisco IOS XR Software to the latest version that exceeds 24.1.2.
Who is affected by CVE-2024-20390?
CVE-2024-20390 affects devices running Cisco IOS XR Software versions prior to 24.1.2.
What type of attack does CVE-2024-20390 enable?
CVE-2024-20390 enables unauthenticated, remote attackers to cause denial of service on the XML TCP listen port.
What component is involved in CVE-2024-20390?
CVE-2024-20390 involves the Dedicated XML Agent feature of Cisco IOS XR Software.
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