External risk intelligence

Keysight IxChariot Endpoint Heap Overflow Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.3)

CVE-2017-20241

Keysight IxChariot Endpoints are typically deployed within private or controlled testing and network assessment environments to generate traffic. While they are network-reachable, they are generally not designed for public internet exposure and are usually isolated within internal laboratory or production network segments.

Buffer Overflow

Halo Surface Signal: 2 out of 5 — less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

Keysight IxChariot Endpoint software has a critical flaw that could allow an unauthenticated attacker to crash the system or potentially execute unauthorized code. This vulnerability is due to a heap-based buffer overflow, which is triggered by specially crafted network packets. While this issue affects Keysight IxChariot Endpoint software, its actual exposure depends on how and where the software is deployed.

Unauthenticated remote code execution risk.
Confirm relevance and exposure for this technology.
Understand potential impact; assess deployment context.

Attack Path

How an attacker could exploit the issue

An attacker could send a specially crafted network packet to a vulnerable Keysight IxChariot Endpoint. This could lead to a crash or the execution of arbitrary code on the endpoint.

Unauthenticated remote access required.
Triggered by a specially crafted packet.
Potential for system crash or code execution.

Live Threat

Current exploitation, exposure, and threat context

When Keysight IxChariot Endpoints are accessible, an unauthenticated remote attacker could send specially crafted packets. This may lead to the endpoint crashing or potentially allow for arbitrary code execution.

Endpoint service availability.
Unauthenticated network access.
Potential for system compromise.

Operational Fix

Recommended remediation, mitigation, and detection steps

Real-world action for this vulnerability likely involves teams responsible for network performance testing tools and their supporting infrastructure. The first practical step is to identify all instances of Keysight IxChariot Endpoint, determine their network exposure and criticality, and then engage the accountable owner to plan remediation.

Identify and confirm affected deployments.
Verify network reachability and business criticality.
Plan remediation with the accountable owner.

Supplementary metadata

CVSS vector

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

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Frequently asked questions

What is Keysight IxChariot Endpoint?

Keysight IxChariot Endpoint is a software agent used within network testing environments. Engineers and administrators deploy these endpoints across network segments to generate, measure, and analyze traffic, helping them assess performance, throughput, and reliability under various load conditions.

What does heap-based buffer overflow mean for CVE-2017-20241?

This vulnerability is classified as CWE-122. It occurs when the software incorrectly manages memory allocated on the heap while processing incoming network data. By sending a specially crafted packet, an attacker can overflow this memory area, which may cause the application to crash or allow the attacker to run unauthorized commands on the system.

How is this vulnerability triggered?

An unauthenticated attacker triggers this flaw by sending a specifically designed network packet to the IxChariot Endpoint. The software must be actively listening and reachable on the network for the packet to reach the vulnerable code path. Normal, legitimate traffic used for standard performance testing does not trigger this buffer overflow.

Is my IxChariot deployment at risk?

Risk depends on your specific environment. According to Halo Surface Signal, these endpoints are typically used in isolated lab or private network segments for testing. While they are network-reachable by design, they are generally not intended for public internet exposure. If your endpoint is accessible from untrusted networks, your risk profile is significantly higher.

What should I do to address this CVE?

Your first step is to locate all active IxChariot Endpoint instances in your infrastructure. Verify their network placement to determine if they are exposed to unauthorized access. Once you have a complete inventory, consult the official Keysight security advisory to identify the necessary software updates to move beyond the affected versions.

References

Written by Nicholas Merritt

Nicholas Merritt is VP of Security Solutions at Halo Security. With more than 25 years across application security, vulnerability prioritization, and offensive security, he helps teams translate threat data into practical exposure validation and remediation focus. He authors Halo Threat Intelligence CVE advisories using Halo Surface Signal and H/A/L/O context to prioritize internet-facing risk.