CVE-2005-1452 in Serendipity
Summary
by MITRE
Serendipity before 0.8 allows Chief users to "hide plugins installed by other users."
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Analysis
by VulDB Data Team • 07/08/2018
The vulnerability described in CVE-2005-1452 pertains to a privilege escalation and access control flaw within the Serendipity blogging platform version 0.8 and earlier. This security issue specifically affects Chief users who possess elevated privileges within the system, allowing them to manipulate the visibility of plugins that have been installed by other users. The core technical flaw resides in the platform's insufficient access control mechanisms that fail to properly enforce user permissions when managing plugin installations and visibility settings.
This vulnerability represents a significant security concern from both a confidentiality and integrity perspective, as it enables unauthorized information disclosure and modification of system components. The flaw operates under CWE-284, which classifies it as an improper access control issue where Chief users can bypass normal permission boundaries to hide plugins installed by other users. This behavior essentially allows malicious or unauthorized Chief users to conceal potentially malicious or unwanted plugins from other system administrators, creating a stealthy method of maintaining persistence or hiding system modifications.
From an operational standpoint, this vulnerability can be exploited to undermine the security posture of the entire blogging platform. The ability to hide plugins installed by other users creates a scenario where system administrators cannot properly audit or monitor plugin installations, potentially allowing malicious actors to install harmful plugins without detection. This vulnerability directly impacts the principle of least privilege and can be leveraged to establish backdoors or maintain unauthorized access within the system. The attack vector requires the adversary to already possess Chief user privileges, but once achieved, the capability to hide plugins provides a sophisticated method of evading detection.
The impact of this vulnerability extends beyond simple information hiding, as it can facilitate more complex attacks by allowing attackers to conceal their activities from security monitoring systems. From an ATT&CK framework perspective, this vulnerability aligns with techniques involving privilege escalation and persistence mechanisms, specifically enabling adversaries to maintain access while avoiding detection through plugin hiding. The vulnerability also relates to defense evasion tactics where attackers can manipulate system visibility to avoid detection by security tools or administrators who rely on comprehensive plugin listings for monitoring purposes.
Organizations using Serendipity versions prior to 0.8 should immediately implement mitigations including upgrading to version 0.8 or later, which would contain the necessary access control fixes. Additionally, system administrators should conduct comprehensive audits of installed plugins and implement strict access control policies to prevent unauthorized Chief user privilege escalation. Regular monitoring of plugin installations and visibility settings should be enforced to detect any unauthorized modifications. The recommended solution involves implementing proper access control checks that ensure users can only modify plugins they have installed or have explicit permission to manage, thereby preventing the unauthorized hiding of plugins installed by other users.