JVN#79013771 Safari allows access from HTTP to HTTPS

Overview

Apple Safari contains a vulnerability that allows a remote attacker to access HTTPS content via an HTTP session.

Products Affected

Safari for Mac OS X (from Mac OS X v10.4 to Mac OS X v10.4.10)
Safari 3.0.3 and earlier for Mac OS X, Windows XP / Vista
Versions prior to iPhone v1.1.1

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

Description

Safari is a default web browser installed in Mac OS X and iPhone.
Safari contains a vulnerability that allows a remote attacker to access web page contents protected by SSL/TLS from an HTTP page in the same domain.

Impact

A remote attacker could obtain or change the web page contents protected by SSL/TLS from an HTTP page in the same domain.

Solution

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

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

Vendor Status

Vendor	Link
Apple	About the security content of Mac OS X 10.4.11 and Security Update 2007-008
	About the security content of Safari 3 Beta Update 3.0.4
	About the security content of the iPhone 1.1.1 Update

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2007.11.16

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

Credit

Keigo Yamazaki of LAC Co., Ltd. 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
CPNI Advisory
TRnotes
CVE	CVE-2007-4671
JVN iPedia	JVNDB-2007-000727