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TITLE:
AlstraSoft E-Friends Local File Inclusion and Arbitrary File Upload
Vulnerabilities

SECUNIA ADVISORY ID:
SA42013

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/42013/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=42013

RELEASE DATE:
2010-10-29

DISCUSS ADVISORY:
http://secunia.com/advisories/42013/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/42013/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=42013

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Salvatore Fresta has reported some vulnerabilities in AlstraSoft
E-Friends, 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 "lang" parameter in chat/updatePage.php is not
properly verified before being used to include files. This can be
exploited to include arbitrary files from local resources via
directory traversal sequences and URL-encoded NULL bytes.

2) The application allows upload of files with arbitrary extensions
to a folder inside the webroot while adding files to a group. This
can be exploited to upload arbitrary files inside the webroot and
e.g. execute arbitrary PHP code.

SOLUTION:
Edit the source code to ensure that input is properly verified.
Restrict access to the "groups" folder (e.g. via .htaccess)

PROVIDED AND/OR DISCOVERED BY:
Salvatore Fresta aka Drosophila

ORIGINAL ADVISORY:
http://adv.salvatorefresta.net/AlstraSoft_E-Friends_4.96_Multiple_Remote_Vulnerabilities-27102010.txt

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/products/corporate/EVM/

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About:
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