netVigilance Security Advisory #15

w-agora version 4.2.1 Information Disclosure Vulnerability 

Description:
w-agora is a set of scripts written in PHP. This package is intended to allow users to share, exchange and publish information, files and discussions over the web.
It is possible to disclose the contents of the globals.inc file and see the true server paths to the main scripts.
Advisory URL: 
http://www.netvigilance.com/advisory0015 

External References: 
Mitre CVE: http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-0607
NVD NIST: http://nvd.nist.gov/nvd.cfm?cvename=CVE-2007-0607
OSVDB: 31670 http://www.osvdb.com/displayvuln.php?osvdb_id=31670 

Summary: 
w-agora is a set of scripts written in PHP intended to allow users to share, exchange and publish information, files and discussions over the web. 
A security issue in the product allows attackers to disclose the contents of the globals.inc file and see the true server paths to the main scripts.  
This vulnerabilities can be exploited only when PHP register_globals is On.

Release Date: March 19  , 2007

Severity:
Risk: Low
 
CVSS Metrics
Access Vector: Remote
Access Complexity: Low
Authentication: not-required
Confidentiality Impact: Partial
Integrity Impact: None
Availability Impact: None
Impact Bias: Normal
CVSS Base Score: 2.3
 
Target Distribution on Internet: Low
 
Exploitability: Functional Exploit
Remediation Level: Workaround
Report Confidence: Uncorroborated
 
Vulnerability Impact: Attack
Host Impact: Information disclosure.


SecureScout Testcase ID:
TC 17942

Vulnerable Systems:
w-agora version 4.2.1

Vulnerability Type:
Secury settings problem, read access to file globals.inc
Vendor:
Author Marc Druilhe. 

Vendor Status: 
The Vendor has been notified on January 30th 2007, and has not responded.
Workaround:
Set PHP register_globals to Off.
Or modify .htaccess file (this will work only for the apache servers).

Example: 
globals.inc File Content Disclosure Vulnerability:
REQUEST:
http://[TARGET]/[w-agora-directory]/globals.inc
REPLY:
Content of the file globals.inc
Credits: 
Jesper Jurcenoks
Co-founder netVigilance, Inc
www.netvigilance.com