CVE-2023-48271 in Maspik Plugin
Summary
by MITRE • 06/04/2024
Authentication Bypass by Spoofing vulnerability in yonifre Maspik – Spam blacklist allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Maspik – Spam blacklist: from n/a through 0.10.3.
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Analysis
by VulDB Data Team • 06/04/2024
The vulnerability identified as CVE-2023-48271 represents a critical authentication bypass flaw within the yonifre Maspik – Spam blacklist software ecosystem. This issue stems from insufficient validation of user credentials and access controls, creating a pathway for unauthorized individuals to circumvent the intended security boundaries. The vulnerability specifically manifests in versions ranging from the initial release through 0.10.3, indicating a prolonged period during which systems remained susceptible to exploitation. The affected software operates as a spam blacklist management system, which by design should enforce strict access controls to prevent unauthorized modification or access to its core functionalities.
The technical root cause of this vulnerability lies in the improper implementation of authentication mechanisms that fail to adequately verify user identities before granting access to restricted functions. This authentication bypass by spoofing occurs when the system accepts manipulated or falsified authentication tokens, user credentials, or session identifiers without proper validation checks. The flaw essentially allows an attacker to spoof their identity and gain access to functionality that should be restricted to authorized users only. This type of vulnerability aligns with CWE-287, which categorizes improper authentication issues, and demonstrates how weak session management or credential validation can lead to complete system compromise.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it enables attackers to manipulate the spam blacklist functionality in potentially damaging ways. An attacker could modify the blacklist entries, add malicious entries, or potentially disrupt the entire spam filtering process. This could result in legitimate emails being blocked while spam messages are allowed through, or conversely, critical security alerts being filtered out. The implications are particularly severe for organizations relying on this spam filtering system, as it could compromise email security posture and potentially enable further attacks through phishing or malware delivery. The vulnerability also aligns with ATT&CK technique T1078 which covers valid accounts and credential access, as attackers can effectively impersonate legitimate users to gain unauthorized access.
Organizations utilizing affected versions of Maspik – Spam blacklist should immediately implement mitigations to address this vulnerability. The primary recommendation involves upgrading to the latest available version that contains the patched authentication mechanisms. Additionally, administrators should review existing access controls and implement additional verification layers such as multi-factor authentication where possible. Network segmentation and monitoring of access attempts to the spam filtering system should be enhanced to detect potential exploitation attempts. The system should also be configured with proper audit logging to track all access attempts and modifications to the blacklist entries. Security teams should conduct thorough penetration testing to ensure no other authentication bypass vulnerabilities exist within the system. Organizations should also consider implementing network-based intrusion detection systems to monitor for suspicious authentication patterns that might indicate exploitation attempts. The vulnerability highlights the critical importance of proper access control implementation and demonstrates how seemingly minor authentication flaws can result in significant security breaches within email security infrastructure.