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Bug 1493056 - (CVE-2017-12171) CVE-2017-12171 httpd: # character matches all IPs
CVE-2017-12171 httpd: # character matches all IPs
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20171019,repor...
: Security
Depends On: 1493060 1493061
Blocks: 1490435
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Reported: 2017-09-19 05:24 EDT by Stefan Cornelius
Modified: 2018-02-12 06:32 EST (History)
39 users (show)

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Doc Text:
A regression was found in the Red Hat Enterprise Linux 6.9 version of httpd, 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.
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Last Closed: 2017-10-24 07:46:51 EDT
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CRM:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:2972 normal SHIPPED_LIVE Moderate: httpd security update 2017-10-19 15:26:43 EDT

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Description Stefan Cornelius 2017-09-19 05:24:09 EDT 
httpd in RHEL 6.9 does not properly parse comments, resulting in the '#' character in "Allow" statements to accidentally match all IP addresses. This can lead to a bypass of intended security restrictions.

https://bugzilla.redhat.com/show_bug.cgi?id=1489849
Comment 1 Stefan Cornelius 2017-09-19 05:24:12 EDT 
Acknowledgments:

Name: KAWAHARA Masashi
Comment 8 errata-xmlrpc 2017-10-19 11:27:55 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:2972 https://access.redhat.com/errata/RHSA-2017:2972
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