5
CVSSv2

CVE-2021-39241

Published: 17/08/2021 Updated: 07/11/2023
CVSS v2 Base Score: 5 | Impact Score: 2.9 | Exploitability Score: 10
CVSS v3 Base Score: 5.3 | Impact Score: 1.4 | Exploitability Score: 3.9
VMScore: 445
Vector: AV:N/AC:L/Au:N/C:N/I:P/A:N

Vulnerability Summary

An issue exists in HAProxy 2.0 prior to 2.0.24, 2.2 prior to 2.2.16, 2.3 prior to 2.3.13, and 2.4 prior to 2.4.3. An HTTP method name may contain a space followed by the name of a protected resource. It is possible that a server would interpret this as a request for that protected resource, such as in the "GET /admin? HTTP/1.1 /static/images HTTP/1.1" example.

Vulnerability Trend

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haproxy haproxy

debian debian linux 11.0

fedoraproject fedora 33

fedoraproject fedora 34

Vendor Advisories

Several vulnerabilities were discovered in HAProxy, a fast and reliable load balancing reverse proxy, which can result in HTTP request smuggling By carefully crafting HTTP/2 requests, it is possible to smuggle another HTTP request to the backend selected by the HTTP/2 request With certain configurations, it allows an attacker to send an HTTP requ ...
Synopsis Important: Red Hat OpenShift GitOps security update Type/Severity Security Advisory: Important Topic An update for openshift-gitops-applicationset-container, openshift-gitops-container, openshift-gitops-kam-delivery-container, and openshift-gitops-operator-container is now available for Red Hat OpenShift GitOps 12 (GitOps v122)Re ...
Synopsis Moderate: Red Hat Advanced Cluster Management 2211 security updates and bug fixes Type/Severity Security Advisory: Moderate Topic Red Hat Advanced Cluster Management for Kubernetes 2211 General Availability release images, which provide one or more container updates and bug fixesRed Hat Product Security has rated this update as ...
A flaw was found in haproxy An input validation flaw when processing HTTP/2 requests causes haproxy to not ensure that the scheme and path portions of a URI have the expected characters This may cause specially crafted input to bypass implemented security restrictions The highest threat from this vulnerability is confidentiality (CVE-2021-3924 ...
An issue was discovered in HAProxy 20 before 2024, 22 before 2216, 23 before 2313, and 24 before 243 An HTTP method name may contain a space followed by the name of a protected resource It is possible that a server would interpret this as a request for that protected resource, such as in the "GET /admin? HTTP/11 /static/imag ...
An issue was discovered in HAProxy before 243 An HTTP method name may contain a space followed by the name of a protected resource It is possible that a server would interpret this as a request for that protected resource, such as in the "GET /admin? HTTP/11 /static/images HTTP/11" example ...