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CVE-2017-12171

A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd 2.2.15-60, causing...

6.5 Medium

A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd 2.2.15-60, causing comments in the "Allow" and "Deny" configuration lines to be parsed incorrectly. A web administrator could unintentionally allow any client to access a restricted HTTP resource.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

8.08%Up 4.8 points since Apr 14, 2021
90%50%10%1%

What each source reports

CVE List Score used 6.5

A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd 2.2.15-60, causing comments in the "Allow" and "Deny" configuration lines to be parsed incorrectly. A web administrator could unintentionally allow any client to access a restricted HTTP resource.

Record
CVE-2017-12171
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-284
Updated
2026-11-02
EUVDEUVD-2017-3747 6.5

A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd 2.2.15-60, causing comments in the "Allow" and "Deny" configuration lines to be parsed incorrectly. A web administrator could unintentionally allow any client to access a restricted HTTP resource.

Record
EUVD-2017-3747
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-c8w6-x7h9-gq97 6.5

A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd 2.2.15-60, causing...

A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd 2.2.15-60, causing comments in the "Allow" and "Deny" configuration lines to be parsed incorrectly. A web administrator could unintentionally allow any client to access a restricted HTTP resource.

Record
GHSA-c8w6-x7h9-gq97
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Weakness
CWE-20, CWE-284
Updated
2026-11-02
NVD 6.5

A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd 2.2.15-60, causing comments in the "Allow" and "Deny" configuration lines to be parsed incorrectly. A web administrator could unintentionally allow any client to access a restricted HTTP resource.

Record
CVE-2017-12171
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
CVSS 2.0
6.4 MediumAV:N/AC:L/Au:N/C:P/I:P/A:N
Weakness
CWE-284, CWE-20
Updated
2026-11-02
OSVRHSA-2017:2972 6.5

Red Hat Security Advisory: httpd security update

Record
RHSA-2017:2972
CVSS 3.0
6.5 MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
httpd
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-debuginfo
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-tools
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-devel
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-manual
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
mod_ssl
Red Hat:enterprise_linux:6::client
From an advisory covering 2 CVEs
 before 1:2.2.15-60.el6_9.6
1:2.2.15-60.el6_9.6
httpd
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-debuginfo
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-tools
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-devel
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
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Affected packages
PackageAffectedFixed
httpd-manual
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
mod_ssl
Red Hat:enterprise_linux:6::computenode
From an advisory covering 2 CVEs
 before 1:2.2.15-60.el6_9.6
1:2.2.15-60.el6_9.6
httpd
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-debuginfo
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-devel
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-manual
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-tools
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
mod_ssl
Red Hat:enterprise_linux:6::server
From an advisory covering 2 CVEs
 before 1:2.2.15-60.el6_9.6
1:2.2.15-60.el6_9.6
httpd
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-debuginfo
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-devel
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-manual
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
httpd-tools
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 0:2.2.15-60.el6_9.6
0:2.2.15-60.el6_9.6
mod_ssl
Red Hat:enterprise_linux:6::workstation
From an advisory covering 2 CVEs
 before 1:2.2.15-60.el6_9.6
1:2.2.15-60.el6_9.6

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2017-12171 is a medium vulnerability (CVSS 6.5) in Red Hat Httpd, published July 26, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 8.08%, the 94th percentile. No source names a fixed version.

References

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