CVE-2015-9292 in 6kbbs
Summary
by MITRE
6kbbs 7.1 and 8.0 allows CSRF via portalchannel_ajax.php (id or code parameter) or admin.php (fileids parameter).
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Analysis
by VulDB Data Team • 11/21/2023
The vulnerability identified as CVE-2015-9292 affects 6kbbs versions 7.1 and 8.0, representing a critical cross-site request forgery flaw that enables unauthorized administrative actions through manipulated web requests. This vulnerability resides in the portalchannel_ajax.php script where the id or code parameters are susceptible to CSRF attacks, as well as in the admin.php script through the fileids parameter. The flaw allows attackers to execute malicious requests on behalf of authenticated users without their knowledge or consent.
The technical implementation of this CSRF vulnerability stems from the absence of proper anti-CSRF mechanisms in the affected web application components. When users navigate to malicious websites or click on compromised links, the vulnerable parameters in portalchannel_ajax.php and admin.php can be manipulated to perform administrative operations such as modifying content, deleting files, or altering system configurations. The vulnerability specifically targets the authentication state of legitimate users who are logged into the 6kbbs administration interface, making it particularly dangerous as it leverages existing user sessions without requiring additional authentication credentials.
The operational impact of this vulnerability extends beyond simple data manipulation to encompass potential complete system compromise. Attackers could exploit this flaw to upload malicious files, modify critical system settings, delete important content, or even establish persistent backdoors within the web application. The affected parameters in portalchannel_ajax.php and admin.php provide attackers with direct access to administrative functions that should normally be protected from unauthorized access. This vulnerability creates a pathway for attackers to escalate privileges and gain deeper control over the affected web server and its hosted content management system.
Security professionals should implement comprehensive mitigations including the implementation of anti-CSRF tokens within all administrative requests, proper input validation and sanitization of the vulnerable parameters, and the enforcement of strict session management controls. The vulnerability aligns with CWE-352, which specifically addresses Cross-Site Request Forgery, and corresponds to techniques documented in the ATT&CK framework under T1078 for Valid Accounts and T1566 for Phishing. Organizations should also consider implementing web application firewalls, regular security assessments, and ensuring all vulnerable components are patched or upgraded to versions that address this specific CSRF vulnerability. The remediation process should include thorough code review of the affected scripts to identify and eliminate all potential CSRF attack vectors within the application's administrative interface.