Published:2010/11/09  Last Updated:2010/11/09

JVN#48425028
Flash Player access restriction bypass vulnerability

Overview

Flash Player contains an access restriction bypass vulnerability.

Products Affected

  • Adobe Flash Player 10.1.85.3 and earlier for Windows, Macintosh, Linux, and Solaris
  • Adobe Flash Player 10.1.95.1 for Android

Description

When Flash Player references a different website than the site where Flash contents are hosted, the referenced site must be allowed access by the cross-domain policy file.

Flash Player contains a vulnerability where access restrictions set by the cross-domain policy file may be bypassed.

Impact

Cross-domain policy restrictions can be bypassed by using a specially crafted web page. This could result in unauthorized access to website data.

Solution

Update the Software
Update to the latest version according to the information provided by the developer.

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2010.11.09

Measures Conditions Severity
Access Required can be attacked over the Internet using packets
  • High
Authentication anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required the user must be convinced to take a standard action that does not feel harmful to most users, such as click on a link or view a file
  • Mid
Exploit Complexity some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Mid-High

Description of each analysis measures

Credit

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE CVE-2010-3636
JVN iPedia JVNDB-2010-000054