Title:

Sonicwall Scrutinizer v9.5.2 - SQL Injection Vulnerability

Date:

2013-02-13

References:

http://www.vulnerability-lab.com/get_content.php?id=789

#9984: Investigate Vulnerability Lab issues (this ticket included tracking the creation of our DBI shim to error on semi-colon)
#10149: Create a common function to escape characters that can be used for SQL injection
#10139: Review all mapping and flow analytics queries to make sure inputs included in SQL are escaped
#10141: Review all reporting and filtering queries to make sure inputs included in SQL are escaped
#10140: Review all alarm tab and admin tab queries to make sure inputs included in SQL are escaped

VL-ID:

789

Common Vulnerability Scoring System:

7.3

Introduction:

Dell SonicWALL Scrutinizer is a multi-vendor, flow-based application traffic analytics, visualization and reporting tool
to measure and troubleshoot network performance and utilization while increasing productivity for enterprises and service providers.
Scrutinizer supports a wide range of routers, switches, firewalls, and data-flow reporting protocols, providing unparalleled insight
into application traffic analysis from IPFIX/NetFlow data exported by Dell SonicWALL firewalls, as well as support for a wide range
of routers, switches, firewalls, and data-flow reporting protocols. IT administrators in charge of high throughput networks can
deploy Scrutinizer as a virtual appliance for high performance environments.

(Copy of the Vendor Homepage: http://www.sonicwall.com/us/en/products/Scrutinizer.html )

Abstract:

The Vulnerability Laboratory Research Team discovered SQL Injection vulnerability in the Dells Sonicwall OEM Scrutinizer v9.5.2 appliance application.

Report-Timeline:

2012-12-05: Researcher Notification & Coordination
2012-12-07: Vendor Notification
2013-01-08: Vendor Response/Feedback
2013-02-10: Vendor Fix/Patch
2013-02-11: Public Disclosure

Status:

Published

Affected Products:

DELL
Product: Sonicwall OEM Scrutinizer 9.5.2

Exploitation-Technique:

Remote

Severity:

High

Details:

A blind SQL Injection vulnerability is detected in the Sonicwall OEM Scrutinizer v9.5.2 appliance application.
The bug allows remote attackers to execute/inject own sql statement/commands to manipulate the affected vulnerable application dbms.
The sql injection vulnerability is located in the fa_web.cgi file with the bound gadget listing module and the vulnerable orderby or
gadget parameters. Exploitation requires no user interaction & without privileged application user account. Successful exploitation of
the remote sql vulnerability results in dbms & application compromise.

Vulnerable File(s):
[+] fa_web.cgi

Vulnerable Module(s):
[+] gadget listing

Vulnerable Parameter(s):
[+] orderby
[+] gadget

Proof of Concept:

The remote sql injection vulnerability can be exploited by remote attackers without required privileged application user account
and also without user interaction. For demonstration or reproduce …

PoC:
http://127.0.0.1:1339/cgi-bin/fa_web.cgi?gadget=applicationsbytes-1%27[SQL INJECTION VULNERABILITY!]&orderby=1&cachebreaker=23_52_5_814-1%27
http://127.0.0.1:1339/cgi-bin/fa_web.cgi?gadget=applicationsbytes&orderby=-1%27[SQL INJECTION VULNERABILITY!]&cachebreaker=23_52_5_814-1%27

Solution:

1) Scrutinizer team created a own DB layer that will die if a semicolon is found within a SQL query
2) We have changed more queries to pass inputs as bound variables to the DB engine which prevents possible SQL injection

Risk:

The security risk of the remote sql injection vulnerability is estimated as high(+).

Credits:

Vulnerability Laboratory [Research Team] - Benjamin Kunz Mejri ([email protected])

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