httpd: ap_get_basic_auth_pw() authentication bypass
Published Jun 20, 2017
9.8
CRITICALCVSS 3.1
EPSS 20.23%
Description
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.
Affected products
-
- Version 2.2.0 to 2.2.32StatusaffectedConstraints-
- Version 2.4.0 to 2.4.25StatusaffectedConstraints-
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server | n/a |
|
Configuration 1
- ≥ 2.2.0 · < 2.2.33
- ≥ 2.4.0 · < 2.4.26
Configuration 2
- n/a
- n/a
- n/a
Configuration 3
- 6.0
- 7.0
- 6.7
- 7.2
- 7.3
- 7.4
- 7.5
- 7.6
- 7.7
- 6.0
- 7.0
- 7.2
- 7.3
- 7.4
- 7.6
- 7.7
- 7.2
- 7.3
- 7.4
- 7.6
- 7.7
- 6.0
- 7.0
Configuration 4
- 1.0
Running on/with
- 6.0
- 7.0
Configuration 6
- 8.0
- 9.0
Configuration 7
- 5.3
No data.
JBoss Core Services on RHEL 6
jbcs-httpd24-httpd-0:2.4.23-125.jbcs.el6
Fixed · RHSA-2017:3477
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_bmx-0:0.9.6-15.GA.jbcs.el6
Fixed · RHSA-2017:3477
JBoss Core Services on RHEL 6
jbcs-httpd24-mod_cluster-native-0:1.3.8-1.Final_redhat_1.jbcs.el6
Fixed · RHSA-2017:3477
JBoss Core Services on RHEL 7
jbcs-httpd24-httpd-0:2.4.23-125.jbcs.el7
Fixed · RHSA-2017:3476
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_bmx-0:0.9.6-15.GA.jbcs.el7
Fixed · RHSA-2017:3476
JBoss Core Services on RHEL 7
jbcs-httpd24-mod_cluster-native-0:1.3.8-1.Final_redhat_1.jbcs.el7
Fixed · RHSA-2017:3476
Red Hat Enterprise Linux 6
httpd-0:2.2.15-60.el6_9.5
Fixed · RHSA-2017:2478
Red Hat Enterprise Linux 6.7 Extended Update Support
httpd-0:2.2.15-47.el6_7.5
Fixed · RHSA-2017:3195
Red Hat Enterprise Linux 7
httpd-0:2.4.6-67.el7_4.2
Fixed · RHSA-2017:2479
Red Hat Enterprise Linux 7.2 Extended Update Support
httpd-0:2.4.6-40.el7_2.6
Fixed · RHSA-2017:3193
Red Hat Enterprise Linux 7.3 Extended Update Support
httpd-0:2.4.6-45.el7_3.5
Fixed · RHSA-2017:3194
Red Hat JBoss Core Services
httpd
Fixed · RHSA-2017:3475
Red Hat Software Collections for Red Hat Enterprise Linux 6
httpd24-httpd-0:2.4.25-9.el6.1
Fixed · RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS
httpd24-httpd-0:2.4.25-9.el6.1
Fixed · RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux 7
httpd24-httpd-0:2.4.25-9.el7.1
Fixed · RHSA-2017:2483
Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS
httpd24-httpd-0:2.4.25-9.el7.1
Fixed · RHSA-2017:2483
Red Hat Enterprise Linux 5
httpd
Will not fix
Red Hat JBoss Enterprise Application Platform 5
jbossas
Not affected
Red Hat JBoss Enterprise Application Platform 6
jbossas
Will not fix
Red Hat JBoss Enterprise Web Server 1
httpd
Will not fix
Red Hat JBoss Enterprise Web Server 2
httpd
Will not fix
Red Hat JBoss Enterprise Web Server 3
httpd
Fix deferred
| Product | Package | State | Advisory |
|---|---|---|---|
| JBoss Core Services on RHEL 6 | jbcs-httpd24-httpd-0:2.4.23-125.jbcs.el6 | Fixed | RHSA-2017:3477 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_bmx-0:0.9.6-15.GA.jbcs.el6 | Fixed | RHSA-2017:3477 |
| JBoss Core Services on RHEL 6 | jbcs-httpd24-mod_cluster-native-0:1.3.8-1.Final_redhat_1.jbcs.el6 | Fixed | RHSA-2017:3477 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-httpd-0:2.4.23-125.jbcs.el7 | Fixed | RHSA-2017:3476 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_bmx-0:0.9.6-15.GA.jbcs.el7 | Fixed | RHSA-2017:3476 |
| JBoss Core Services on RHEL 7 | jbcs-httpd24-mod_cluster-native-0:1.3.8-1.Final_redhat_1.jbcs.el7 | Fixed | RHSA-2017:3476 |
| Red Hat Enterprise Linux 6 | httpd-0:2.2.15-60.el6_9.5 | Fixed | RHSA-2017:2478 |
| Red Hat Enterprise Linux 6.7 Extended Update Support | httpd-0:2.2.15-47.el6_7.5 | Fixed | RHSA-2017:3195 |
| Red Hat Enterprise Linux 7 | httpd-0:2.4.6-67.el7_4.2 | Fixed | RHSA-2017:2479 |
| Red Hat Enterprise Linux 7.2 Extended Update Support | httpd-0:2.4.6-40.el7_2.6 | Fixed | RHSA-2017:3193 |
| Red Hat Enterprise Linux 7.3 Extended Update Support | httpd-0:2.4.6-45.el7_3.5 | Fixed | RHSA-2017:3194 |
| Red Hat JBoss Core Services | httpd | Fixed | RHSA-2017:3475 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6 | httpd24-httpd-0:2.4.25-9.el6.1 | Fixed | RHSA-2017:2483 |
| Red Hat Software Collections for Red Hat Enterprise Linux 6.7 EUS | httpd24-httpd-0:2.4.25-9.el6.1 | Fixed | RHSA-2017:2483 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7 | httpd24-httpd-0:2.4.25-9.el7.1 | Fixed | RHSA-2017:2483 |
| Red Hat Software Collections for Red Hat Enterprise Linux 7.3 EUS | httpd24-httpd-0:2.4.25-9.el7.1 | Fixed | RHSA-2017:2483 |
| Red Hat Enterprise Linux 5 | httpd | Will not fix | n/a |
| Red Hat JBoss Enterprise Application Platform 5 | jbossas | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 6 | jbossas | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 1 | httpd | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 2 | httpd | Will not fix | n/a |
| Red Hat JBoss Enterprise Web Server 3 | httpd | Fix deferred | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
AV:N/AC:L/Au:N/C:P/I:P/A:P
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (39 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 20.23% (0.20231) | 97.40th | v5 (v2026.06.15) |
| Jun 15, 2026 | 20.23% (0.20231) | 97.13th | v5 (v2026.06.15) |
| May 14, 2026 | 8.72% (0.08717) | 92.57th | v4 (v2025.03.14) |
| Mar 4, 2026 | 10.35% (0.10349) | 93.06th | v4 (v2025.03.14) |
| Mar 1, 2026 | 6.99% (0.06987) | 91.33th | v4 (v2025.03.14) |
| Feb 4, 2026 | 9.44% (0.09440) | 92.60th | v4 (v2025.03.14) |
| Feb 1, 2026 | 6.35% (0.06347) | 90.80th | v4 (v2025.03.14) |
| Jan 4, 2026 | 9.44% (0.09440) | 92.54th | v4 (v2025.03.14) |
| Jan 1, 2026 | 6.35% (0.06347) | 90.74th | v4 (v2025.03.14) |
| Dec 4, 2025 | 9.44% (0.09440) | 92.50th | v4 (v2025.03.14) |
| Dec 1, 2025 | 6.35% (0.06347) | 90.67th | v4 (v2025.03.14) |
| Nov 4, 2025 | 9.44% (0.09440) | 92.45th | v4 (v2025.03.14) |
| Nov 1, 2025 | 6.35% (0.06347) | 90.60th | v4 (v2025.03.14) |
| Oct 4, 2025 | 9.44% (0.09440) | 92.50th | v4 (v2025.03.14) |
| Oct 1, 2025 | 6.35% (0.06347) | 90.65th | v4 (v2025.03.14) |
| Sep 4, 2025 | 8.46% (0.08460) | 92.03th | v4 (v2025.03.14) |
| Sep 1, 2025 | 3.25% (0.03246) | 86.71th | v4 (v2025.03.14) |
| Aug 4, 2025 | 8.11% (0.08105) | 91.79th | v4 (v2025.03.14) |
| Aug 1, 2025 | 3.10% (0.03100) | 86.38th | v4 (v2025.03.14) |
| Jul 4, 2025 | 9.05% (0.09049) | 92.25th | v4 (v2025.03.14) |
| Jul 1, 2025 | 6.07% (0.06073) | 90.35th | v4 (v2025.03.14) |
| Jun 4, 2025 | 9.05% (0.09049) | 92.19th | v4 (v2025.03.14) |
| Jun 1, 2025 | 6.07% (0.06073) | 90.31th | v4 (v2025.03.14) |
| May 4, 2025 | 9.05% (0.09049) | 92.16th | v4 (v2025.03.14) |
| May 1, 2025 | 6.07% (0.06073) | 90.27th | v4 (v2025.03.14) |
| Mar 30, 2025 | 9.05% (0.09049) | 91.85th | v4 (v2025.03.14) |
| Mar 29, 2025 | 19.37% (0.19367) | 92.43th | v4 (v2025.03.14) |
| Mar 17, 2025 | 9.05% (0.09049) | 92.02th | v4 (v2025.03.14) |
| Dec 12, 2024 | 1.40% (0.01399) | 86.97th | v3 (v2023.03.01) |
| Dec 14, 2023 | 1.40% (0.01399) | 84.92th | v3 (v2023.03.01) |
| Nov 8, 2023 | 1.58% (0.01580) | 85.84th | v3 (v2023.03.01) |
| Sep 3, 2023 | 1.00% (0.01001) | 81.76th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.90% (0.00897) | 80.21th | v3 (v2023.03.01) |
| Mar 6, 2023 | 7.77% (0.07767) | 93.09th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.77% (0.07767) | 81.37th | v2 (v2022.01.01) |
| Feb 3, 2022 | 3.62% (0.03618) | 68.44th | v1 |
| May 5, 2021 | 3.44% (0.03442) | 0.00th | v1 |
| May 4, 2021 | 19.61% (0.19606) | 0.00th | v5 (v2026.06.15) |
| Apr 14, 2021 | 19.61% (0.19606) | 0.00th | v1 |
References (45)
- http://seclists.org/fulldisclosure/2024/Sep/22
- http://www.debian.org/security/2017/dsa-3896 vendor-advisoryx_refsource_DEBIANThird Party Advisory
- http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.html x_refsource_CONFIRMPatchThird Party Advisory
- http://www.securityfocus.com/bid/99135 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038711 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/errata/RHSA-2017:2478 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2479 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:2483 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:3193 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:3194 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:3195 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:3475 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:3476 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/errata/RHSA-2017:3477 vendor-advisoryx_refsource_REDHATThird Party Advisory
- https://access.redhat.com/security/cve/CVE-2017-3167 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1463194 Issue Tracking
- https://httpd.apache.org/security/vulnerabilities_22.html
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/8409e41a8f7dd9ded37141c38df001be930115428c3d64f70bbdb8b4%40%3Cdev.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E mailing-listx_refsource_MLIST
- https://nvd.nist.gov/vuln/detail/CVE-2017-3167
- https://security.gentoo.org/glsa/201710-32 vendor-advisoryx_refsource_GENTOOThird Party Advisory
- https://security.netapp.com/advisory/ntap-20180601-0002/ x_refsource_CONFIRMThird Party Advisory
- https://support.apple.com/HT208221 x_refsource_CONFIRMThird Party Advisory
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03908en_us x_refsource_CONFIRMThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-3167
- https://www.nomachine.com/SU08O00185 x_refsource_CONFIRMThird Party Advisory
- https://www.tenable.com/security/tns-2019-09 x_refsource_CONFIRMThird Party Advisory
Change history (0)
No recorded changes yet.