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Copyright © The OWASP Foundation Permission is granted to copy, distribute and/or modify this document under the terms of the OWASP License. The OWASP Foundation OWASP http://www.owasp.org Yahoo Zero-Day Vulnerability - Code Point of View Ebrahim Hegazy @Zigoo0 Cyber Security Analyst @Q-CERT [email protected] 12 April - 2014

Yahoo Zero-Day Vulnerability - Code Point of View

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Ebrahim Hegazy @Zigoo0 Cyber Security Analyst @Q-CERT [email protected]. Yahoo Zero-Day Vulnerability - Code Point of View. 12 April - 2014. Not this type of bugs!. Nor even This type Of hunting!. 1- Bug Bounty Programs. 2- Remote Code Execution Vulnerability 3- Live Example – WebPwn3r - PowerPoint PPT Presentation

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Page 1: Yahoo Zero-Day Vulnerability - Code Point of View

Copyright © The OWASP FoundationPermission is granted to copy, distribute and/or modify this document under the terms of the OWASP License.

The OWASP Foundation

OWASP

http://www.owasp.org

Yahoo Zero-Day Vulnerability - Code Point of View

Ebrahim Hegazy@Zigoo0Cyber Security Analyst @[email protected]

12 April - 2014

Page 2: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP 2

Not this type of bugs!

Page 3: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

Nor even This type Of hunting!

Page 4: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

Page 5: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

1- Bug Bounty Programs.2- Remote Code Execution Vulnerability3- Live Example – WebPwn3r4- Demo Videos

Page 6: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

Bug Bounty Programs

https://bugcrowd.com/list-of-bug-bounty-programs/

Page 7: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

Remote Code Execution Vulnerability

Simply, PHPCE occurs when user-supplied(GET/POST) values of the parameters are reflected inside eval() function, that vulnerability allows attackers to execute PHP code such as {echo system(“id”)} or any other php function/code.

Page 8: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

Eval

Page 9: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

Live Example – WebPwn3r

Page 10: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP

4- Demo Videos

Page 11: Yahoo Zero-Day Vulnerability - Code Point of View

OWASP