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Fencer Intel
critical 9.8

CVE-2017-3167 in the critical feed json

In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authen…

published 2017-06-20 9 y ago modified 2026-06-17 4 mo ago also EUVD-2017-12293

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
20.2%
EPSS 20.2% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules outside of the authentication phase may lead to authentication requirements being bypassed.

Patch / fix

  • apache http_server 2.2.33, 2.4.26
  • apple mac_os_x 10.13.1
  • apache2 Debian 14, Debian 13, Debian 12 2.4.25-4

debian advisories DEBIAN-CVE-2017-3167

  • apache2 Ubuntu 14.04 LTS 2.4.7-1ubuntu4.16
  • apache2 Ubuntu 16.04 LTS 2.4.18-2ubuntu3.3

ubuntu advisories UBUNTU-CVE-2017-3167

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • jbcs-httpd24-httpd jboss core services 1 2.4.23-125.jbcs.el6
  • jbcs-httpd24-mod_bmx jboss core services 1 0.9.6-15.GA.jbcs.el6
  • jbcs-httpd24-mod_ssl jboss core services 1 1:2.4.23-125.jbcs.el6
  • jbcs-httpd24-mod_ldap jboss core services 1 2.4.23-125.jbcs.el6
  • jbcs-httpd24-httpd-libs jboss core services 1 2.4.23-125.jbcs.el6
  • jbcs-httpd24-httpd-tools jboss core services 1 2.4.23-125.jbcs.el6
  • jbcs-httpd24-mod_session jboss core services 1 2.4.23-125.jbcs.el6
  • jbcs-httpd24-httpd-manual jboss core services 1 2.4.23-125.jbcs.el6

red hat advisories RHSA-2017:3477RHSA-2017:3476RHSA-2017:3195RHSA-2017:3194RHSA-2017:3193RHSA-2017:2478

  • apache2 Studio Onsite 1.3, SLES for SAP 11 SP4, SLES 11 SP4 +4 more 2.2.34-70.12.1
  • apache2 SLES for SAP 12 SP1, SLES 12 SP1-LTSS, OpenStack Cloud 6 2.4.16-20.10.1
  • apache2 SLES for SAP 12 SP2, SLES for Raspberry Pi 12 SP2, SLES 12 SP2 +1 more 2.4.23-28.1
  • apache2 SLES 12-LTSS 2.4.10-14.28.1

suse advisories SUSE-SU-2017:2907-1SUSE-SU-2017:2756-1SUSE-SU-2017:2449-1SUSE-SU-2017:1714-1

  • apache2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +19 more 2.4.26-r0

alpine advisories ALPINE-CVE-2017-3167

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • apache Arch Linux 2.4.26-1

arch linux advisories AVG-316

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2017-3167 updated cvss 7.4

httpd: ap_get_basic_auth_pw() authentication bypass

  • Red Hat Enterprise Linux 5 httpd Red Hat JBoss Enterprise Application Platform 6 jbossas jbossas Red Hat JBoss Enterprise Web Server 1 httpd Red Hat JBoss Enterprise Web Server 2 jbcs-httpd24, jbcs-httpd24-runtime
    affected: no fix planned “Will not fix”
  • Red Hat JBoss Enterprise Web Server 3 httpd
    affected: no fix available “Fix deferred”
  • Red Hat Enterprise Linux Client Optional (v. 7) httpd 2.4.6-67.el7_4.2, mod_ssl 2.4.6-67.el7_4.2, mod_ldap 2.4.6-67.el7_4.2, httpd-tools 2.4.6-67.el7_4.2, mod_session 2.4.6-67.el7_4.2, httpd-manual 2.4.6-67.el7_4.2, +1 more Red Hat Enterprise Linux ComputeNode Optional (v. 7) httpd 2.4.6-67.el7_4.2, mod_ssl 2.4.6-67.el7_4.2, mod_ldap 2.4.6-67.el7_4.2, httpd-tools 2.4.6-67.el7_4.2, mod_session 2.4.6-67.el7_4.2, httpd-manual 2.4.6-67.el7_4.2, +1 more
    fixed: vendor fix RHSA-2017:2479
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.2) httpd 2.4.6-40.el7_2.6, mod_ssl 2.4.6-40.el7_2.6, mod_ldap 2.4.6-40.el7_2.6, httpd-tools 2.4.6-40.el7_2.6, mod_session 2.4.6-40.el7_2.6, httpd-manual 2.4.6-40.el7_2.6, +1 more
    fixed: vendor fix RHSA-2017:3193
  • Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.3) httpd 2.4.6-45.el7_3.5, mod_ssl 2.4.6-45.el7_3.5, mod_ldap 2.4.6-45.el7_3.5, httpd-tools 2.4.6-45.el7_3.5, mod_session 2.4.6-45.el7_3.5, httpd-manual 2.4.6-45.el7_3.5, +1 more
    fixed: vendor fix RHSA-2017:3194
  • Red Hat Enterprise Linux Desktop (v. 6) httpd 2.2.15-60.el6_9.5, httpd-tools 2.2.15-60.el6_9.5 Red Hat Enterprise Linux Desktop Optional (v. 6) mod_ssl 2.2.15-60.el6_9.5, httpd-manual 2.2.15-60.el6_9.5 Red Hat Enterprise Linux HPC Node (v. 6) httpd 2.2.15-60.el6_9.5, httpd-tools 2.2.15-60.el6_9.5
    fixed: vendor fix RHSA-2017:2478
  • Red Hat Enterprise Linux HPC Node EUS (v. 6.7) httpd 2.2.15-47.el6_7.5, httpd-tools 2.2.15-47.el6_7.5
    fixed: vendor fix RHSA-2017:3195
  • Red Hat Enterprise Linux HPC Node Optional (v. 6) mod_ssl 2.2.15-60.el6_9.5, httpd-manual 2.2.15-60.el6_9.5
    fixed: vendor fix RHSA-2017:2478
show 16 more
  • Red Hat Enterprise Linux HPC Node Optional EUS (v. 6.7) mod_ssl 2.2.15-47.el6_7.5, httpd-manual 2.2.15-47.el6_7.5
    fixed: vendor fix RHSA-2017:3195
  • Red Hat Enterprise Linux Server (v. 6) httpd 2.2.15-60.el6_9.5, mod_ssl 2.2.15-60.el6_9.5, httpd-tools 2.2.15-60.el6_9.5, httpd-manual 2.2.15-60.el6_9.5
    fixed: vendor fix RHSA-2017:2478
  • Red Hat Enterprise Linux Server (v. 7) httpd 2.4.6-67.el7_4.2, mod_ssl 2.4.6-67.el7_4.2, httpd-tools 2.4.6-67.el7_4.2, mod_session 2.4.6-67.el7_4.2, httpd-manual 2.4.6-67.el7_4.2
    fixed: vendor fix RHSA-2017:2479
  • Red Hat Enterprise Linux Server EUS (v. 6.7) httpd 2.2.15-47.el6_7.5, mod_ssl 2.2.15-47.el6_7.5, httpd-tools 2.2.15-47.el6_7.5, httpd-manual 2.2.15-47.el6_7.5
    fixed: vendor fix RHSA-2017:3195
  • Red Hat Enterprise Linux Server EUS (v. 7.2) httpd 2.4.6-40.el7_2.6, mod_ssl 2.4.6-40.el7_2.6, httpd-tools 2.4.6-40.el7_2.6, httpd-manual 2.4.6-40.el7_2.6
    fixed: vendor fix RHSA-2017:3193
  • Red Hat Enterprise Linux Server EUS (v. 7.3) httpd 2.4.6-45.el7_3.5, mod_ssl 2.4.6-45.el7_3.5, httpd-tools 2.4.6-45.el7_3.5, httpd-manual 2.4.6-45.el7_3.5
    fixed: vendor fix RHSA-2017:3194
  • Red Hat Enterprise Linux Server Optional (v. 7) mod_ldap 2.4.6-67.el7_4.2, mod_proxy_html 2.4.6-67.el7_4.2
    fixed: vendor fix RHSA-2017:2479
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.2) mod_ldap 2.4.6-40.el7_2.6, mod_session 2.4.6-40.el7_2.6, mod_proxy_html 2.4.6-40.el7_2.6
    fixed: vendor fix RHSA-2017:3193
  • Red Hat Enterprise Linux Server Optional EUS (v. 7.3) mod_ldap 2.4.6-45.el7_3.5, mod_session 2.4.6-45.el7_3.5, mod_proxy_html 2.4.6-45.el7_3.5
    fixed: vendor fix RHSA-2017:3194
  • Red Hat Enterprise Linux Workstation (v. 6) httpd 2.2.15-60.el6_9.5, mod_ssl 2.2.15-60.el6_9.5, httpd-tools 2.2.15-60.el6_9.5, httpd-manual 2.2.15-60.el6_9.5
    fixed: vendor fix RHSA-2017:2478
  • Red Hat Enterprise Linux Workstation (v. 7) httpd 2.4.6-67.el7_4.2, mod_ssl 2.4.6-67.el7_4.2, httpd-tools 2.4.6-67.el7_4.2, mod_session 2.4.6-67.el7_4.2, httpd-manual 2.4.6-67.el7_4.2 Red Hat Enterprise Linux Workstation Optional (v. 7) mod_ldap 2.4.6-67.el7_4.2, mod_proxy_html 2.4.6-67.el7_4.2
    fixed: vendor fix RHSA-2017:2479
  • Red Hat JBoss Core Services
    fixed: vendor fix RHSA-2017:3475
  • Red Hat JBoss Core Services on RHEL 6 Server jbcs-httpd24-httpd 2.4.23-125.jbcs.el6, jbcs-httpd24-mod_ssl 2.4.23-125.jbcs.el6, jbcs-httpd24-mod_bmx 0.9.6-15.GA.jbcs.el6, jbcs-httpd24-mod_ldap 2.4.23-125.jbcs.el6, jbcs-httpd24-httpd-libs 2.4.23-125.jbcs.el6, jbcs-httpd24-httpd-tools 2.4.23-125.jbcs.el6, +5 more
    fixed: vendor fix RHSA-2017:3477
  • Red Hat JBoss Core Services on RHEL 7 Server jbcs-httpd24-httpd 2.4.23-125.jbcs.el7, jbcs-httpd24-mod_ssl 2.4.23-125.jbcs.el7, jbcs-httpd24-mod_bmx 0.9.6-15.GA.jbcs.el7, jbcs-httpd24-mod_ldap 2.4.23-125.jbcs.el7, jbcs-httpd24-httpd-libs 2.4.23-125.jbcs.el7, jbcs-httpd24-httpd-tools 2.4.23-125.jbcs.el7, +5 more
    fixed: vendor fix RHSA-2017:3476
  • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 6) httpd24-httpd 2.4.25-9.el6.1, httpd24-mod_ssl 2.4.25-9.el6.1, httpd24-mod_ldap 2.4.25-9.el6.1, httpd24-httpd-tools 2.4.25-9.el6.1, httpd24-mod_session 2.4.25-9.el6.1, httpd24-httpd-manual 2.4.25-9.el6.1, +1 more Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) httpd24-httpd 2.4.25-9.el7.1, httpd24-mod_ssl 2.4.25-9.el7.1, httpd24-mod_ldap 2.4.25-9.el7.1, httpd24-httpd-tools 2.4.25-9.el7.1, httpd24-mod_session 2.4.25-9.el7.1, httpd24-httpd-manual 2.4.25-9.el7.1, +1 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 6.7) httpd24-httpd 2.4.25-9.el6.1, httpd24-mod_ssl 2.4.25-9.el6.1, httpd24-mod_ldap 2.4.25-9.el6.1, httpd24-httpd-tools 2.4.25-9.el6.1, httpd24-mod_session 2.4.25-9.el6.1, httpd24-httpd-manual 2.4.25-9.el6.1, +1 more Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.3) httpd24-httpd 2.4.25-9.el7.1, httpd24-mod_ssl 2.4.25-9.el7.1, httpd24-mod_ldap 2.4.25-9.el7.1, httpd24-httpd-tools 2.4.25-9.el7.1, httpd24-mod_session 2.4.25-9.el7.1, httpd24-httpd-manual 2.4.25-9.el7.1, +1 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 6) httpd24-httpd 2.4.25-9.el6.1, httpd24-mod_ssl 2.4.25-9.el6.1, httpd24-mod_ldap 2.4.25-9.el6.1, httpd24-httpd-tools 2.4.25-9.el6.1, httpd24-mod_session 2.4.25-9.el6.1, httpd24-httpd-manual 2.4.25-9.el6.1, +1 more Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) httpd24-httpd 2.4.25-9.el7.1, httpd24-mod_ssl 2.4.25-9.el7.1, httpd24-mod_ldap 2.4.25-9.el7.1, httpd24-httpd-tools 2.4.25-9.el7.1, httpd24-mod_session 2.4.25-9.el7.1, httpd24-httpd-manual 2.4.25-9.el7.1, +1 more
    fixed: vendor fix RHSA-2017:2483
  • Red Hat JBoss Enterprise Application Platform 5 jbossas jbossas
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

20.23% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

  • Apache Software Foundation Apache HTTP Server

Classification

Weakness
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.