CVE-2024-24791

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.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://go.dev/cl/591255
https://go.dev/issue/67555
https://groups.google.com/g/golang-dev/c/t0rK-qHBqzY/m/6MMoAZkMAgAJ
https://pkg.go.dev/vuln/GO-2024-2963

Configurations

No configuration.

History

No history.

Information

Published : 2024-07-02 22:15

Updated : 2024-07-08 14:17

NVD link : CVE-2024-24791

Mitre link : CVE-2024-24791

CVE.ORG link : CVE-2024-24791

JSON object : View

Products Affected

No product.

CWE

No CWE.

{"id": "CVE-2024-24791", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 3.9}]}, "published": "2024-07-02T22:15:04.833", "references": [{"url": "https://go.dev/cl/591255", "source": "security@golang.org"}, {"url": "https://go.dev/issue/67555", "source": "security@golang.org"}, {"url": "https://groups.google.com/g/golang-dev/c/t0rK-qHBqzY/m/6MMoAZkMAgAJ", "source": "security@golang.org"}, {"url": "https://pkg.go.dev/vuln/GO-2024-2963", "source": "security@golang.org"}], "vulnStatus": "Awaiting Analysis", "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "El cliente net/http HTTP/1.1 manej\u00f3 mal el caso en el que un servidor responde a una solicitud con un encabezado \"Expect: 100-continue\" con un estado no informativo (200 o superior). Este mal manejo podr\u00eda dejar una conexi\u00f3n de cliente en un estado no v\u00e1lido, donde la siguiente solicitud enviada a la conexi\u00f3n fallar\u00e1. Un atacante que env\u00eda una solicitud a un proxy net/http/httputil.ReverseProxy puede aprovechar este mal manejo para provocar una denegaci\u00f3n de servicio enviando solicitudes \"Esperar: 100-continuar\" que provocan una respuesta no informativa del backend. Cada una de estas solicitudes deja al proxy con una conexi\u00f3n no v\u00e1lida y provoca que falle una solicitud posterior que utiliza esa conexi\u00f3n."}], "lastModified": "2024-07-08T14:17:39.083", "sourceIdentifier": "security@golang.org"}