CVE-2018-18735 in Blog
Summary
by MITRE
A CSRF issue was discovered in admin/Index/tiquan in catfish blog 2.0.33.
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Analysis
by VulDB Data Team • 04/07/2020
The vulnerability identified as CVE-2018-18735 represents a cross-site request forgery flaw located within the administrative interface of Catfish Blog version 2.0.33. This particular weakness manifests in the admin/Index/tiquan endpoint, which serves as a critical administrative function for the blogging platform. The flaw resides in the application's insufficient validation of requests originating from unauthorized domains, creating a scenario where malicious actors can potentially manipulate administrative functions without proper authorization. This type of vulnerability falls under the category of CWE-352, which specifically addresses Cross-Site Request Forgery vulnerabilities, and aligns with ATT&CK technique T1078.004 for bypassing application security controls through forged requests.
The technical implementation of this CSRF vulnerability stems from the absence of proper anti-CSRF tokens or validation mechanisms within the administrative form processing. When administrators perform actions through the tiquan endpoint, the application fails to verify that requests originate from legitimate administrative sessions. An attacker could craft malicious web pages or exploit existing user sessions to execute unauthorized administrative commands, potentially leading to unauthorized access to sensitive data or system modifications. The vulnerability specifically targets the administrative interface, making it particularly dangerous as it could allow attackers to manipulate blog content, user accounts, or system configurations without needing valid credentials.
The operational impact of this vulnerability extends beyond simple data manipulation as it represents a significant security risk for administrators managing Catfish Blog installations. Successful exploitation could enable attackers to perform unauthorized transactions, modify content, or potentially escalate privileges within the blogging platform. The risk is amplified because the vulnerability affects the core administrative functionality of the application, potentially allowing full compromise of the blog's administrative capabilities. This weakness could be exploited to create backdoors, modify user permissions, or even facilitate further attacks on the underlying infrastructure hosting the blog platform. Organizations using Catfish Blog 2.0.33 should consider this vulnerability as a critical threat to their administrative security posture.
Mitigation strategies for CVE-2018-18735 should focus on implementing proper anti-CSRF token validation within the administrative endpoints. The recommended approach involves generating unique tokens for each administrative session and validating these tokens on all state-changing requests. This solution aligns with industry best practices for CSRF protection and addresses the underlying CWE-352 vulnerability. Additionally, implementing proper session management, enforcing strict origin validation, and ensuring that administrative functions require explicit authentication tokens would significantly reduce the attack surface. Organizations should also consider implementing web application firewalls to detect and block suspicious administrative requests, while regular security audits of administrative interfaces should be conducted to identify similar vulnerabilities. The patching process should include updating to Catfish Blog versions that have implemented proper CSRF protection mechanisms, as this vulnerability represents a fundamental security flaw in the application's request validation process.