A vulnerability was found in Google Chrome (Web Browser) (affected version unknown). It has been rated as critical. Affected by this issue is an unknown functionality of the component Autofill Handler. The manipulation of the argument div with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality.

The weakness was released 10/31/2013 by Ricardo Martin Rodriguez as How to take advantage of Chrome autofill feature to get sensitive information as confirmed mailinglist post (Full-Disclosure). The advisory is shared for download at seclists.org. The public release happened without coordination with the vendor. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details as well as a public exploit are known. The MITRE ATT&CK project declares the attack technique as T1592.

A public exploit has been developed by Ricardo Martin Rodriguez in HTML Form and been published immediately after the advisory. The exploit is available at seclists.org. It is declared as functional. As 0-day the estimated underground price was around $25k-$100k. The code used by the exploit is:

<form action="recolector.php" method="post">
   <div style="overflow:hidden;height:35px;">
      Nombre  <input id="cn" autocomplete="cc-name" ><br><br>
      <input id="cc" autocomplete="cc-number" >
      <input id="ce" autocomplete="cc-exp" >
      <input id="c5" autocomplete="cc-exp" maxlength="5">
      <input id="cg" autocomplete="cc-given-name">
      <input id="ca" autocomplete="cc-additional-name">
      <input id="cf" autocomplete="cc-family-name">

...

</div>

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

seclists.org is providing further details.

Productinfo

Type

• Web Browser

Vendor

• Google

Name

• Chrome

License

• free

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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