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TITLE:
FlexPHPNews Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA16300

VERIFY ADVISORY:
http://secunia.com/advisories/16300/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Cross Site Scripting, Manipulation of data, Exposure
of system information, DoS

WHERE:
>From remote

SOFTWARE:
FlexPHPNews 0.x
http://secunia.com/product/4942/

DESCRIPTION:
rgod has reported some vulnerabilities in FlexPHPNews, which can be
exploited by malicious people to cause a DoS (Denial of Service), or
conduct cross-site scripting and SQL injection attacks.

1) Certain input is not properly sanitised before being returned to
users. This can be exploited to execute arbitrary HTML and script
code in a user's browser session in context of an affected site.

Examples:
http://[host]/index.php?front_indextitle=[code]
http://[host]/index.php?front_searchsubmit=[code]
http://[host]/index.php?front_latestnews=[code]
http://[host]/news.php?newsid=[code]
http://[host]/news.php?front_rating=[code]
http://[host]/news.php?salt=[code]
http://[host]/news.php?front_letmerateit=[code]
http://[host]/news.php?front_ratebest=[code]
http://[host]/news.php?front_ratesubmit=[code]
http://[host]/news.php?front_searchsubmit=[code]
http://[host]/search.php?front_searchresult=[code]
http://[host]/search.php?front_searchsubmit=[code]
http://[host]/catalog.php?front_searchsubmit=[code]
http://[host]/catalog.php?front_latestnews=[code]
http://[host]/catalog.php?catalogid=[code]

2) Input passed to the "prenumber" and "nextnumber" parameters in
"news.php" is not properly verified before being used in a loop
statement. This can be exploited to consume a large amount of CPU and
memory resources on a vulnerable system.

3) Input passed to the username and password in the administration
login is not properly sanitised before being used in a SQL query.
This can be exploited to manipulate SQL queries by injecting
arbitrary SQL code.

It is also possible to disclose the full path to "usercheck.php" by
accessing it with invalid input.

The vulnerabilities have been reported in version 0.0.4. 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:
rgod

ORIGINAL ADVISORY:
http://rgod.altervista.org/flex.html

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

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Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


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