Bug 1611906 (CVE-2018-14773) - CVE-2018-14773 php-symfony: Legacy HTTP headers allow users to modify URLs and bypass restrictions
Summary: CVE-2018-14773 php-symfony: Legacy HTTP headers allow users to modify URLs an...
Alias: CVE-2018-14773
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1611907 1611908 1611909 1611910
TreeView+ depends on / blocked
Reported: 2018-08-03 02:57 UTC by Sam Fowler
Modified: 2021-02-16 23:49 UTC (History)
3 users (show)

Fixed In Version: php-symfony 2.7.49, php-symfony 2.8.44, php-symfony 3.3.18, php-symfony 3.4.14, php-symfony 4.0.14, php-symfony 4.1.3
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Clone Of:
Last Closed: 2019-06-10 10:35:09 UTC

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Description Sam Fowler 2018-08-03 02:57:14 UTC
The Symfony PHP framework has a vulnerability in versions before 2.7.49, 2.8.44, 3.3.18, 3.4.14, 4.0.14, and 4.1.3. Support for a (legacy) IIS header that lets users override the path in the request URL via the X-Original-URL or X-Rewrite-URL HTTP request header allows a user to access one URL but have Symfony return a different one which can bypass restrictions on higher level caches and web servers.

The fix drops support for these two obsolete IIS headers: X-Original-URL and X_REWRITE_URL.

External Reference:


Upstream Patch:


Comment 1 Sam Fowler 2018-08-03 02:57:52 UTC
Created php-symfony tracking bugs for this issue:

Affects: epel-all [bug 1611910]
Affects: fedora-all [bug 1611907]

Created php-symfony3 tracking bugs for this issue:

Affects: fedora-all [bug 1611909]

Created php-symfony4 tracking bugs for this issue:

Affects: fedora-all [bug 1611908]

Comment 2 Product Security DevOps Team 2019-06-10 10:35:09 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.

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