Simple PHP Guestbook Script act.php code execution

spgs-act-code-execution (46526)

High Risk

Description:

Simple PHP Guestbook Script could allow a remote attacker to execute arbitrary code on the system, caused by improper validation of user supplied input by the act.php script. A remote attacker could exploit this vulnerability using the message parameter to execute arbitrary PHP code.

*CVSS:

Base Score:	7.5
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	6.1
Exploitability:	Unproven
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Gain Access

Remedy:

No remedy available as of July 9, 2011.

References:

• Sanus artificium Web site: Free simple guestbook PHP script.
• BID-32240: Free simple PHP guestbook 'act.php' Arbitrary Script Injection Vulnerability
• CVE-2008-6934: Static code injection vulnerability in Sanus|artificium (aka Sanusart) Free simple guestbook PHP script, when downloaded before 20081111, allows remote attackers to inject arbitrary PHP code into messages.txt via the message parameter to act.php, which is executed when guestbook/guestbook.php is accessed. NOTE: some of these details are obtained from third party information.
• SA32643: Sanusart Simple PHP Guestbook Script PHP Code Execution
• VUPEN/ADV-2008-3095: Free Simple Guestbook PHP Script Code Execution Vulnerability

Platforms Affected:

• Sanusart Simple PHP Guestbook Script

Reported:

Nov 10, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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