Description

The Apache HTTP Server through 2.4.23 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. NOTE: the vendor states "This mitigation has been assigned the identifier CVE-2016-5387"; in other words, this is not a CVE ID for a vulnerability.

Remediation

References

CVE-2016-5387

Related Vulnerabilities

Drupal Permissions, Privileges, and Access Controls Vulnerability (CVE-2016-7570)

Dolibarr Unrestricted Upload of File with Dangerous Type Vulnerability (CVE-2017-9840)

Oracle JRE CVE-2013-2472 Vulnerability (CVE-2013-2472)

Joomla Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2017-9934)

Envoy Proxy Uncontrolled Resource Consumption Vulnerability (CVE-2020-12603)

Severity

High

Classification

CVE-2016-5387 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Tags

Missing Update Known Vulnerabilities