CVE-2016-5387
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:HAttack ComplexityHigh
PR:NPrivileges RequiredNone
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
oracle
commercial·USaka oracle corp.
redhat
commercial·USaka red hat
opensuse
oss-project·DE
apache
oss-project·USaka apache http server, apache httpd
hp
commercial·USaka hewlett packard, hpe
fedoraproject
oss-project·USaka fedora project
and 8 more affected products View all →
Exploitability
Official Patch Available
References
http://www.securitytracker.com/id/1036330
securitytracker.com
https://access.redhat.com/errata/RHSA-2016:1420
access.redhat.com
https://access.redhat.com/errata/RHSA-2016:1635
access.redhat.com
and 51 more references View all →
Unlock Complete Vulnerability Intelligence
Get the full picture for CVE-2016-5387 and every CVE in our database. Create a free account — no credit card required.
Create Free AccountPlain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows
