Published:2007/07/11  Last Updated:2008/05/21

JVN#72595280
Flash Player allows to send arbitrary Referer headers

Overview

Adobe Flash Player contains a vulnerability allowing to send arbitrary Referer headers.

Products Affected

  • Flash Player 8.0.34.0 and earlier
For more information, refer to the vendor's website.

Description

Adobe Flash Player is a multimedia and application browser plugin for viewing Adobe Flash contents.
Flash Player contains a vulnerability allowing to send arbitrary Referer headers.

Impact

As a flash file (swf) can send an arbitrary Referer header and Flash Player cannot properly validate Referer header sent by swf, a remote attacker could bypass a security measure on a web application applied based on the Referer header.

Solution

Update the Software
Update to the latest version provided by the vendor.

For more information, refer to the vendor's website.

Vendor Status

Vendor Link
Adobe Flash Player Update available to Address Security Vulnerabilities (Japanese)
Security bulletins and advisories (Japanese)
Flash Player Update available to Address Security Vulnerabilities
Security bulletins and advisories

References

  1. US-CERT
    Adobe Flash Player fails to properly validate HTTP Referers

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2007.07.11

Measures Conditions Severity
Access Required Routed - can be attacked over the Internet using packets
  • High
Authentication None - anonymous or no authentication (IP addresses do not count)
  • High
User Interaction Required Simple - 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
  • Medium
Exploit Complexity Low-Medium - some expertise and/or luck required (most buffer overflows, guessing correctly in small space, expertise in Windows function calls)
  • Medium-High

Description of each analysis measures

Credit

Daiki Fukumori of Secure Sky Technology, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory TA07-192A
CPNI Advisory
TRnotes
CVE CVE-2007-3457 VU#138457
JVN iPedia JVNDB-2007-000507

Update History