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TITLE:
MGB Multiple Cross-Site Scripting and SQL Injection Vulnerabilities

SECUNIA ADVISORY ID:
SA49804

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/49804/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=49804

RELEASE DATE:
2012-07-09

DISCUSS ADVISORY:
http://secunia.com/advisories/49804/#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/49804/

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=49804

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:
Stefan Schurtz has discovered multiple vulnerabilities in MGB, which
can be exploited by malicious users to conduct SQL injection attacks
and by malicious people to conduct cross-site scripting attacks.

1) Input passed via the "p" parameter to 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.

2) Input passed via the "name", "city", "email", "icq", "aim", "msn",
"hp", and "message" parameters to newentry.php is not properly
sanitised in the "template()" function in includes/functions.inc.php
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.

3) Input passed via the "id" parameter to admin/admin.php (when
"action" is set to "delete") is not properly sanitised in
admin/delete.inc.php 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 the "Delete
post" permission.

The vulnerabilities are confirmed in version 0.6.9.1. Other versions
may also be affected.

SOLUTION:
No official solution is currently available.

PROVIDED AND/OR DISCOVERED BY:
Stefan Schurtz.

ORIGINAL ADVISORY:
SSCHADV2012-017:
http://www.darksecurity.de/index.php?/219-SSCHADV2012-017-MGB-OpenSource-Guestbook-0.6.9.1-Multiple-security-vulnerabilities.html

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
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use those supplied by the vendor.

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