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TITLE:
concrete5 Path Disclosure Weakness and Cross-Site Scripting
Vulnerability

SECUNIA ADVISORY ID:
SA46215

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/46215/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=46215

RELEASE DATE:
2011-10-17

DISCUSS ADVISORY:
http://secunia.com/advisories/46215/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
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 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/46215/

ONLY AVAILABLE IN CUSTOMER AREA:
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https://ca.secunia.com/?page=viewadvisory&vuln_id=46215

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Ryan Dewhurst has discovered a weakness and a vulnerability in
concrete5, which can be exploited by malicious people to disclose
system information and conduct cross-site scripting attacks.

1) Input passed via the "cID" parameter to
index.php/tools/blocks/page_list/blog_rss (when "bID" is set) is not
properly verified. This can be exploited to disclose the full
installation path via an error message when "cID" is set to a
non-integer value.

2) Input passed via the "rcID" parameter to
index.php/login/forgot_password is not properly sanitised before
being returned to the user. This can be exploited to execute
arbitrary HTML and script code in a user's browser session in context
of an affected site.

Successful exploitation of this vulnerability requires that the
victim uses Internet Explorer.

The weakness and the vulnerability are confirmed in version 5.4.2.1.
Other versions may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised and
verified.

PROVIDED AND/OR DISCOVERED BY:
Ryan Dewhurst

ORIGINAL ADVISORY:
http://www.ethicalhack3r.co.uk/security/concrete5/

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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