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Bug 233254 - mod_proxy not handling percent chars in URLs correctly
Summary: mod_proxy not handling percent chars in URLs correctly
Alias: None
Product: Red Hat Enterprise Linux 4
Classification: Red Hat
Component: httpd
Version: 4.4
Hardware: All
OS: Linux
Target Milestone: ---
: ---
Assignee: Joe Orton
QA Contact:
Depends On:
TreeView+ depends on / blocked
Reported: 2007-03-21 09:40 UTC by Jason Haar
Modified: 2018-11-08 14:45 UTC (History)
0 users

Fixed In Version: RHSA-2007-0747
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-11-15 15:06:21 UTC
Target Upstream Version:

Attachments (Terms of Use)

System ID Priority Status Summary Last Updated
Apache Bugzilla 15207 None None None Never
Red Hat Product Errata RHSA-2007:0747 normal SHIPPED_LIVE Moderate: httpd security, bug fix, and enhancement update 2007-11-15 15:06:14 UTC

Description Jason Haar 2007-03-21 09:40:29 UTC
Description of problem:

Hi there

We are using httpd as a reverse proxy, and have been hit by the bug referenced
within Apache's bugtracker as

Supposedly it was fixed in 2.0.55 back in 2005?

Basically if you are using Apache as a RP, it "double-unescapes"
percent-encodings and ends up with an invalid URL

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1. set up RP section via ProxyPass/ProxyPassReverse e.g

ProxyPass /test http://other.server/test/

2. download "rp.server/test/hel%20l%20o.txt - works (i.e. backend server 
3. download rp.srver/test/hel%20l%25o.txt - RP gives 400 error instead of
 passing back to backend server

Actual results:

Expected results:

Additional info:

Comment 1 Joe Orton 2007-05-16 13:54:32 UTC
Thanks for the report.

Comment 8 errata-xmlrpc 2007-11-15 15:06:21 UTC
An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

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