Simple one-file guestbook guestbook.php authentication bypass

simple-guestbook-authentication-bypass (28289)

Medium Risk

Description:

Simple one-file guestbook could allow a remote attacker to bypass authentication, caused by a vulnerability in the guestbook.php script. A remote attacker could send a specially-crafted URL request to the guestbook.php script to bypass administration login and delete all guestbook entries.

*CVSS:

Base Score:	3.5
Access Vector:	Remote
Access Complexity:	Low
Authentication:	Not Required
Confidentiality Impact:	None
Integrity Impact:	Partial
Availability Impact:	None
Temporal Score:	3
Exploitability:	Proof-Of-Concept
Remediation Level:	Unavailable
Report Confidence:	Uncorroborated

Consequences:

Bypass Security

Remedy:

No remedy available as of July 9, 2011.

References:

• Netsons.org Advisory August 08, 2006 : Simple one-file guestbook 1.0 .
• Simple one-file guestbook Web site: .
• BID-19437: Simple One File Guestbook Security Bypass Vulnerability
• CVE-2006-4122: Simple one-file guestbook 1.0 and earlier allows remote attackers to bypass authentication and delete guestbook entries via a modified id parameter to guestbook.php.
• SA21429: Simple one-file guestbook Authentication Bypass
• VUPEN/ADV-2006-3229: Simple one-file guestbook guestbook.php Remote Authentication Bypass Vulnerability

Platforms Affected:

• XeroXer Simple one-file guestbook 1.0 and prior

Reported:

Aug 08, 2006

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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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