Vulnerability in Apache Http_server

CVE-2016-5387

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 redi…

EPSS: 0.516 (97.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Public proof-of-concept exploits

References

  • 1036330 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_SECTRACK, Broken Link)
  • RHSA-2016:1420 (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
  • RHSA-2016:1635 (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
  • secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
  • secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
  • 91816 (Third Party Advisory, VDB Entry, vdb-entry, x_refsource_BID)
  • RHSA-2016:1851 (x_refsource_REDHAT, vendor-advisory, Third Party Advisory)
  • USN-3038-1 (x_refsource_UBUNTU, vendor-advisory, Third Party Advisory)
  • VU#797896 (x_refsource_CERT-VN, US Government Resource, Third Party Advisory, third-party-advisory)
  • secalert@redhat.com (x_refsource_CONFIRM, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2016-5387?
CVE-2016-5387 is a high-severity vulnerability in Apache Http_server. CVSS score: 8.1/10. Published 2016-07-19.
How severe is CVE-2016-5387?
High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2016-5387 known to be exploited?
64 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.