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Insecure Library Loading
Highly critical

MyBackup Information Disclosure and File Inclusion Vulnerabilities

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Release Date:  2009-08-06    Last Update:  2010-09-01    Views:  2,323

Secunia Advisory SA36106

Where:

From remote

Impact:

Exposure of system information, Exposure of sensitive information, System access

Solution Status:

Unpatched

Software:

CVE Reference(s):

Description


Some vulnerabilities have been discovered in MyBackup, which can be exploited by malicious users to compromise a vulnerable system and by malicious people to disclose sensitive information.

1) Input passed to the "filename" in down.php is not properly verified before being used to read files. This can be exploited to download arbitrary files from local resources via directory traversal attacks.

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

Successful exploitation of this vulnerability requires administrative access to the application, which can be accomplished by exploiting vulnerability #1.

3) Input passed to the "serverfile[]" parameter in backup_web.php is not properly verified before being used to include files in backups. This can be exploited to disclose the content of arbitrary files from the local system by creating and downloading backups.

The vulnerabilities are confirmed in version 1.4.0. Other versions may also be affected.


Solution:
Edit the source code to ensure that input is properly verified.

Provided and/or discovered by:
1, 2) SirGod
3) Jaykishan Nirmal

Original Advisory:
1, 2) http://milw0rm.com/exploits/9365

Deep Links:
Links available to Secunia VIM customers

Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: MyBackup Information Disclosure and File Inclusion Vulnerabilities

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