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TITLE:
Yerba SACphp Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA32093

VERIFY ADVISORY:
http://secunia.com/advisories/32093/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Exposure of sensitive information

WHERE:
>From remote

SOFTWARE:
Yerba SACphp 6.x
http://secunia.com/advisories/product/20071/

DESCRIPTION:
Some vulnerabilities have been discovered in Yerba SACphp, which can
be exploited by malicious people to disclose sensitive information or
bypass certain security restrictions.

1) Input passed to the "mod" parameter in index.php is not properly
verified before being used to include files. This can be exploited to
include arbitrary files from local resources.

2) Input passed to the "mod" parameter within the base64 encoded
"SID" parameter is not properly verified before being used to include
files. This can be exploited to include arbitrary files from local
resources.

3) A vulnerability is caused due to access restriction being based on
the existence of a certain cookie. This can be exploited to gain
administrative access to the application by creating the cookie
"galleta[sesion]" and assigning it the value "1:1:Username" in base64
encoded form.

These vulnerabilities are confirmed in version 6.3. Other versions
may also be affected.

SOLUTION:
Edit the source code to ensure that input is properly verified and
implement proper access restrictions.

PROVIDED AND/OR DISCOVERED BY:
1) Pepelux
2, 3) StAkeR

ORIGINAL ADVISORY:
http://milw0rm.com/exploits/6687
http://milw0rm.com/exploits/6691

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