Bug 240165 (CVE-2007-1454) - CVE-2007-1454 php filter extension FILTER_SANITIZE_STRING bypass
Summary: CVE-2007-1454 php filter extension FILTER_SANITIZE_STRING bypass
Alias: CVE-2007-1454
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
: 239319 (view as bug list)
Depends On:
TreeView+ depends on / blocked
Reported: 2007-05-15 15:58 UTC by Joe Orton
Modified: 2007-05-15 15:59 UTC (History)
1 user (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Last Closed: 2007-05-15 15:59:00 UTC

Attachments (Terms of Use)

Description Joe Orton 2007-05-15 15:58:05 UTC
Description of problem:
ext/filter in PHP 5.2.0, when FILTER_SANITIZE_STRING is used with the
FILTER_FLAG_STRIP_LOW flag, does not properly strip HTML tags, which allows
remote attackers to conduct cross-site scripting (XSS) attacks via HTML with a
'<' character followed by certain whitespace characters, which passes one filter
but is collapsed into a valid tag, as demonstrated using %0b.

Comment 1 Joe Orton 2007-05-15 15:59:00 UTC
The 'filter' extension is not currently included in php packages distributed by
Red Hat.

Comment 2 Joe Orton 2007-05-15 15:59:17 UTC
*** Bug 239319 has been marked as a duplicate of this bug. ***

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