Secunia Security Advisory - S4mi has discovered some vulnerabilities in JBlog, which can be exploited by malicious people to conduct cross-site scripting attacks and to bypass certain security restrictions.
c0a2454455463b5610c282cd0374c9dcd99d956adbf738afbdb08a9135bf6cc9
----------------------------------------------------------------------
Try a new way to discover vulnerabilities that ALREADY EXIST in your
IT infrastructure.
The Full Featured Secunia Network Software Inspector (NSI) is now
available:
http://secunia.com/network_software_inspector/
The Secunia NSI enables you to INSPECT, DISCOVER, and DOCUMENT
vulnerabilities in more than 4,000 different Windows applications.
----------------------------------------------------------------------
TITLE:
JBlog Security Bypass and Cross-Site Scripting
SECUNIA ADVISORY ID:
SA26165
VERIFY ADVISORY:
http://secunia.com/advisories/26165/
CRITICAL:
Moderately critical
IMPACT:
Security Bypass, Cross Site Scripting
WHERE:
>From remote
SOFTWARE:
JBlog 1.x
http://secunia.com/product/14850/
DESCRIPTION:
S4mi has discovered some vulnerabilities in JBlog, which can be
exploited by malicious people to conduct cross-site scripting attacks
and to bypass certain security restrictions.
1) A vulnerability is caused due to improper authentication
verification in admin/ajoutaut.php. This can be exploited to create
new administrators and other user types, without having any valid
user credentials.
2) Input passed to the "id" parameter in index.php (when "pcomm" is
set to "com") and the "search" parameter in recherche.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.
The vulnerabilities are confirmed in version 1.0. Other versions may
also be affected.
SOLUTION:
Restrict access to the admin/ directory (e.g. with ".htaccess"). Edit
the source code to ensure that input is properly sanitised.
PROVIDED AND/OR DISCOVERED BY:
S4mi
ORIGINAL ADVISORY:
http://milw0rm.com/exploits/4211
----------------------------------------------------------------------
About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.
Subscribe:
http://secunia.com/secunia_security_advisories/
Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/
Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.
----------------------------------------------------------------------