Full Disclosure mailing list archives

Re: PayPal.com XSS Vulnerability


From: Jeffrey Walton <noloader () gmail com>
Date: Tue, 28 May 2013 09:13:10 -0400

On Tue, May 28, 2013 at 8:26 AM, Dan Kaminsky <dan () doxpara com> wrote:
   So there's this pile of law around the world around work and kids; it's a
rather recent development that <18 year olds can find problems that
multibillion dollar interests are willing to pay bounties for.
I'm probably splitting hairs here, but there appears to be a cultural
bias built in. At 17+, Robert would have been of age if he was
Japanese under "Kazoe" year-counting.

The laws
are all trying to protect you from being made to pick berries or sew
t-shirts instead of going to class and playing outside.
The humor was not lost upon me that politicians and lawyers are trying
to legislate morality. How ironic!

FTW: https://www.google.com/search?q=teenage+science+competition?

Jeff

On Fri, May 24, 2013 at 9:38 AM, Robert Kugler <robert.kugler10 () gmail com>
wrote:

Hello all!

I'm Robert Kugler a 17 years old German student who's interested in
securing computer systems.

I would like to warn you that PayPal.com is vulnerable to a Cross-Site
Scripting vulnerability!
PayPal Inc. is running a bug bounty program for professional security
researchers.

https://www.paypal.com/us/webapps/mpp/security/reporting-security-issues

XSS vulnerabilities are in scope. So I tried to take part and sent my find
to PayPal Site Security.

The vulnerability is located in the search function and can be triggered
with the following javascript code:


';alert(String.fromCharCode(88,83,83))//';alert(String.fromCharCode(88,83,83))//";

alert(String.fromCharCode(88,83,83))//";alert(String.fromCharCode(88,83,83))//--
</SCRIPT>">'><SCRIPT>alert(String.fromCharCode(88,83,83))</SCRIPT>

https://www.paypal.com/de/cgi-bin/searchscr?cmd=_sitewide-search

Screenshot: http://picturepush.com/public/13144090

Unfortunately PayPal disqualified me from receiving any bounty payment
because of being 17 years old...

PayPal Site Security:

"To be eligible for the Bug Bounty Program, you must not:
... Be less than 18 years of age.If PayPal discovers that a researcher
does not meet any of the criteria above, PayPal will remove that researcher
from the Bug Bounty Program and disqualify them from receiving any bounty
payments."

I don’t want to allege PayPal a kind of bug bounty cost saving, but it’s
not the best idea when you're interested in motivated security
researchers...

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