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.
This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 8.1, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 21 products from apache, from hp, from oracle and 18 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2016-07-19T02:00:19.837
2025-04-12T10:46:40.837
Deferred
CVSSv3.1: 8.1 (HIGH)
AV:N/AC:M/Au:N/C:P/I:P/A:P
8.6
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Application | apache | http_server | ≤ 2.2.31 | Yes |
| Application | apache | http_server | ≤ 2.4.23 | Yes |
| Application | hp | system_management_homepage | ≤ 7.5.5.0 | Yes |
| Application | oracle | communications_user_data_repository | ≤ 12.4 | Yes |
| Application | oracle | enterprise_manager_ops_center | 12.2.2 | Yes |
| Application | oracle | enterprise_manager_ops_center | 12.3.2 | Yes |
| Operating System | oracle | linux | 5 | Yes |
| Operating System | oracle | linux | 6 | Yes |
| Operating System | oracle | linux | 7 | Yes |
| Operating System | oracle | solaris | 11.3 | Yes |
| Operating System | fedoraproject | fedora | 23 | Yes |
| Operating System | fedoraproject | fedora | 24 | Yes |
| Application | redhat | jboss_web_server | 2.1.0 | Yes |
| Operating System | redhat | enterprise_linux | 6.0 | No |
| Operating System | redhat | enterprise_linux | 7.0 | No |
| Application | redhat | jboss_enterprise_web_server | 2.0.0 | Yes |
| Application | redhat | jboss_enterprise_web_server | 3.0.0 | Yes |
| Operating System | redhat | enterprise_linux | 6.0 | No |
| Application | redhat | jboss_enterprise_web_server | 2.0.0 | Yes |
| Application | redhat | jboss_enterprise_web_server | 3.0.0 | Yes |
| Operating System | redhat | enterprise_linux | 7.0 | No |
| Application | redhat | jboss_core_services | 1.0 | Yes |
| Operating System | redhat | enterprise_linux | 6.0 | No |
| Operating System | redhat | enterprise_linux | 7.0 | No |
| Operating System | redhat | enterprise_linux_desktop | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_desktop | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_eus | 7.2 | Yes |
| Operating System | redhat | enterprise_linux_eus | 7.3 | Yes |
| Operating System | redhat | enterprise_linux_eus | 7.4 | Yes |
| Operating System | redhat | enterprise_linux_eus | 7.5 | Yes |
| Operating System | redhat | enterprise_linux_eus | 7.6 | Yes |
| Operating System | redhat | enterprise_linux_eus | 7.7 | Yes |
| Operating System | redhat | enterprise_linux_server | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_server | 7.0 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.2 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.3 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.4 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.6 | Yes |
| Operating System | redhat | enterprise_linux_server_aus | 7.7 | Yes |
| Operating System | redhat | enterprise_linux_server_tus | 7.2 | Yes |
| Operating System | redhat | enterprise_linux_server_tus | 7.3 | Yes |
| Operating System | redhat | enterprise_linux_server_tus | 7.6 | Yes |
| Operating System | redhat | enterprise_linux_server_tus | 7.7 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 6.0 | Yes |
| Operating System | redhat | enterprise_linux_workstation | 7.0 | Yes |
| Operating System | debian | debian_linux | 8.0 | Yes |
| Operating System | canonical | ubuntu_linux | 12.04 | Yes |
| Operating System | canonical | ubuntu_linux | 14.04 | Yes |
| Operating System | canonical | ubuntu_linux | 15.10 | Yes |
| Operating System | canonical | ubuntu_linux | 16.04 | Yes |
| Operating System | opensuse | leap | 42.1 | Yes |
| Operating System | opensuse | opensuse | 13.2 | Yes |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For apache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.