JBC Explorer auth.inc.php security bypass

jbcexplorer-authinc-security-bypass (38269)

Medium Risk

Description:

JBC Explorer could allow a remote attacker to bypass authentication and gain unauthorized administrative access to the application, caused by improper restrictions on the .dirsys/modules/auth.php file. An attacker could exploit this vulnerability to overwrite the auth.inc.php script, which could allow the attacker to gain administrative access to the application.

*CVSS:

Base Score:	7.5
Access Vector:	Network
Access Complexity:	Low
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial
Temporal Score:	7.1
Exploitability:	Functional
Remediation Level:	Unavailable
Report Confidence:	Confirmed

Consequences:

Bypass Security

Remedy:

No remedy available as of July 9, 2011.

References:

• BugTraq Mailing List, Sun Nov 04 2007 - 14:17:14 CST : JBC Explorer <= V7.20 RC 1 Remote Code Execution Exploit.
• JBC Explorer Web site: Important Security FIX.
• BID-26332: JBC Explorer Auth.Inc.PHP Authentication Bypass Vulnerability
• CVE-2007-5913: dirsys/modules/auth.php in JBC Explorer 7.20 RC1 and earlier does not require authentication, which allows remote attackers to (1) delete auth.inc.php via the suppr parameter, and (2) re-create the auth.inc.php file with contents that specify a new account name and password for JBC Explorer via the login and password parameters.
• SA27533: JBC Explorer Security Bypass and PHP Code Execution

Platforms Affected:

• Jean Charles JBC Explorer 7.20 RC1

Reported:

Nov 04, 2007

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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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