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Yahoo! Blind SQL Injection could lead to data leakage

Ebrahim Hegazy(@Zigoo0) an Egyptian information security advisor who found a high severity vulnerability in "Avira license daemon" days ago, is on the news again, but this time for finding and reporting Blind SQL Injection vulnerability in one of Yahoo! E-marketing applications.

It seems that 2013 is the "Data Leakage Year"!many customers information and confidential data has been published on the internet coming from government institutions, famous vendors, and companies too.

Ebrahim Hegazy(@Zigoo0) an Egyptian information security advisor who found a high severity vulnerability in "Avira license daemon" days ago, is on the news again, but this time for finding and reporting Blind SQL Injection vulnerability in one of Yahoo! E-marketing applications.SQL Injection vulnerabilities is ranked as Critical vulnerabilities, because if used by Hackers it will cause a database breach which will lead to confidential information leakage.

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 breach the database of that vulnerable application and get access to the users data.

The SQL Injection vulnerability is located in the index.php file of the soeasy module when processing to request manipulatedscId parameters. By manipulation of the scId parameter the attackers can inject own sql commands to compromise the webserverapplication dbms.

The vulnerability can be exploited by remote attackers without privileged application user account and without requireduser interaction. Successful exploitation of the sql injection vulnerability results in application and applicationservice dbms compromise.

But Ebrahim is a white hat hacker, so he reported the vulnerability to the Yahoo! security team with recommendations on how to patch the vulnerability.

According to Ebrahim, the time line of the vulnerability was:
================
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
================

More details about the vulnerability could be found here:
http://www.resecure.me/public/Yahoo-TW-YSM-BSQLI.txt

As most of readers know that Yahoo! don't have a bug bounty program or Hall of fame too, so as a reward from Yahoo! to the researchers who find a vulnerabilities in Yahoo! applications, they do award researchers by sending them a T-shirts with Yahoo! logo and some other tokens.the researcher told us that he received a package sent to him by Yahoo! which contains 2 T-shirts and a big cup as a reward.
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