JVN#50327700 PHP vulnerable to cross-site scripting

Overview

PHP contains a cross-site scripting vulnerability.

Products Affected

PHP 5.2.7 and earlier

If PHP is configured with display_errors=off in php.ini, it is not affected.
Additionally, PHP 5.3.0alpha is not affected.

Description

PHP is an open source scripting language that is especially suited for Web development. PHP contains a cross-site scripting vulnerability as it does not properly handle errors.

Impact

An arbitrary script may be executed on the user's web browser.

Solution

Update the Software
Apply the latest update provided by the developer.

According to the developer, PHP 4.X is no longer supported. Users of PHP 4.X are recommended to upgrade to PHP 5.2.X.

Vendor Status

Vendor	Link
PHP	PHP 5.2.8 Released! [08-Dec-2008]

References

JPCERT/CC Addendum

Vulnerability Analysis by JPCERT/CC

Analyzed on 2008.12.19

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

Tomoki Sanaki of International Network Security, Inc. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.

Other Information

JPCERT Alert
JPCERT Reports
CERT Advisory
CPNI Advisory
TRnotes
CVE	CVE-2008-5814
JVN iPedia	JVNDB-2008-000084