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TITLE:
BilboBlog Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA31054

VERIFY ADVISORY:
http://secunia.com/advisories/31054/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Cross Site Scripting, Manipulation of data

WHERE:
>From remote

SOFTWARE:
BilboBlog 0.x
http://secunia.com/product/19330/

DESCRIPTION:
Black_H has discovered some vulnerabilities in BilboBlog, which can
be exploited by malicious users to conduct script insertion and SQL
injection attacks, and by malicious people to conduct cross-site
scripting attacks and bypass certain security restrictions.

1) Input passed to the "num" parameter in admin/delete.php is not
properly sanitised before being used in SQL queries. This can be
exploited to manipulate SQL queries by injecting arbitrary SQL code.

Successful exploitation of this vulnerability requires valid
administrator credentials and that "magic_quotes_gpc" is disabled.

2) A vulnerability is caused due to improper access restriction in
the admin/login.php script. This can be exploited to bypass the
authentication mechanism and gain access to the administration
section by passing "login" and "password" parameters in the URL.

Successful exploitation of this vulnerability requires that
"register_globals" is enabled.

3) Input passed to the "content" parameter in admin/update.php is not
properly sanitised before being stored. This can be exploited to
insert arbitrary HTML and script code, which is executed in a user's
browser session in context of an affected site when the malicious
data is viewed in widget.php.

Successful exploitation of this vulnerability requires that the
attacker has valid administrator credentials.

4) Input passed to the "content" parameter in admin/index.php 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 has valid administrator credentials.

5) Input passed to the "titleId" parameter in index.php,
"t_lang[lang_copyright]" in footer.php, "url",
"t_lang[lang_admin_help]", "t_lang[lang_admin_clear_cache]",
"t_lang[lang_admin_home]", "t_lang[lang_admin_logout]" in
admin/homelink.php, and "t_lang[lang_admin_new_post]" in
admin/post.php 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
"register_globals" is enabled.

The vulnerabilities are confirmed in version 0.2.1. Other versions
may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly sanitised. Set
"register_globals" to "Off" and "magic_quotes_gpc" to "On" in
php.ini. Restrict access to the admin/login.php script (e.g. with
".htaccess").

Use another product.

PROVIDED AND/OR DISCOVERED BY:
Black_H

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/6073

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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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