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CVE-2024-24791

7.5 · HIGH

The net/http HTTP/1.1 client mishandled the case where a server responds to a request with an "Expect: 100-continue" header with a non-informational (200 or higher) status.

Published Jul 2, 2024EPSS 1.41%

Overview

CVE-2024-24791 is a high-severity vulnerability. It was published on July 2, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

The net/http HTTP/1.1 client mishandled the case where a server responds to a request with an "Expect: 100-continue" header with a non-informational (200 or higher) status. This mishandling could leave a client connection in an invalid state, where the next request sent on the connection will fail. An attacker sending a request to a net/http/httputil.ReverseProxy proxy can exploit this mishandling to cause a denial of service by sending "Expect: 100-continue" requests which elicit a non-informational response from the backend. Each such request leaves the proxy with an invalid connection, and causes one subsequent request using that connection to fail.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgo.dev/cl/591255Refgo.dev/issue/67555Refgroups.google.com/g/golang-dev/c/t0rK-qHBqzY/m/6MMoAZkMAgAJRefpkg.go.dev/vuln/GO-2024-2963Refgo.dev/cl/591255Refgo.dev/issue/67555Refgroups.google.com/g/golang-dev/c/t0rK-qHBqzY/m/6MMoAZkMAgAJRefpkg.go.dev/vuln/GO-2024-2963Refsecurity.netapp.com/advisory/ntap-20241004-0004/

How CyberStrike helps

Frequently asked questions

What is CVE-2024-24791?

CVE-2024-24791 is a high-severity vulnerability. It was published on July 2, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-24791?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-24791?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-24791?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-24791 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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