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CVE-2017-12171

25
FAUCET Score

CVE-2017-12171 is a regression in Red Hat Enterprise Linux 6.9's httpd 2.2.15-60, where comments in "Allow" and "Deny" configuration lines are incorrectly parsed, potentially allowing unintended access to restricted HTTP resources. This vulnerability has a CVSS score of 6.5 (Medium), indicating a network-based attack with low complexity, leading to partial confidentiality and integrity impact. There is no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
6.9CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux:6.9:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:*
6.0CPE matchmatch criteria
cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:*:*:*:*:*:*:*
2.2.15-60CPE matchmatch criteria
cpe:2.3:a:apache:http_server:2.2.15-60:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

6.5MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
8.08%
Probability of exploitation in next 30 days
EPSS Percentile
94.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0808 is in the 92nd percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6Fixed in: httpd-0:2.2.15-60.el6_9.6
View patch
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2017-12171Moderate

httpd: # character matches all IPs

Oct 19, 2017

References

access.redhat.com / errata/RHSA-2017:2972
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingVendor Advisory
securityfocus.com / bid/101516
Broken LinkThird Party AdvisoryVDB Entry
securitytracker.com / id/1039633
Third Party AdvisoryVDB Entry