Published:2007/08/02  Last Updated:2008/05/21

Safari URL spoofing vulnerability


Apple's Safari contains a vulnerability that allows spoofing of URLs in the address bar.

Products Affected

  • Safari for Mac OS X (Mac OS X 10.3.x and Mac OS X 10.4.x)
  • Safari 3.0.2 and earlier (Mac OS X, Windows XP / Vista)
  • iPhone v1.0
For more information, refer to the vendor's website.


Apple's Safari is a web browser installed as default with Mac OS X.
There is a problem in Safari where URLs displayed in the address bar could be spoofed to deceive Safari users.
This could be conducted by using Unicode characters that look alike to ASCII characters as URL strings.


As it is difficult for Safari users to tell whether the displayed URL is spoofed or not, an attacker could possibly conduct phising attacks.


Update the software
Apply the latest updates provided by the vendor.

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

Vendor Status


JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2007.08.02

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 - little to no expertise and/or luck required to exploit (cross-site scripting)
  • High

Description of each analysis measures


Tomohito Yoshino of Business Architects Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the vendors under Information Security Early Warning Partnership.

Other Information

JPCERT Reports
CERT Advisory
CPNI Advisory
CVE CVE-2007-3742
JVN iPedia JVNDB-2007-000560

Update History