CVE-2023-47321 in Silverpeas
Summary
by MITRE • 12/13/2023
Silverpeas Core 6.3.1 is vulnerable to Incorrect Access Control via the "Porlet Deployer" which allows administrators to deploy .WAR portlets.
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Analysis
by VulDB Data Team • 01/10/2024
The vulnerability identified as CVE-2023-47321 affects Silverpeas Core version 6.3.1 and represents a critical access control flaw within the Portlet Deployer component. This issue stems from inadequate authorization checks that permit administrators to deploy .WAR portlets without proper validation of their privileges or the content being deployed. The flaw exists in the application's permission model where administrative functions are not adequately protected against unauthorized access or exploitation by users who should not possess such capabilities.
The technical implementation of this vulnerability resides in the Portlet Deployer module which fails to enforce proper access control mechanisms when processing deployment requests for web archive files. When an administrator attempts to deploy a .WAR portlet, the system should validate not only the user's administrative status but also ensure that the deployment operation is authorized within the specific context and scope of the application's security policies. The absence of these checks creates a pathway for potential attackers to leverage administrative credentials for unauthorized portlet deployment.
This vulnerability directly impacts the operational security posture of systems running Silverpeas Core 6.3.1 by potentially allowing arbitrary code execution through the deployment of malicious portlets. Attackers could exploit this flaw to gain persistent access to the application environment, escalate privileges, or establish backdoor access points. The implications extend beyond simple privilege escalation as the deployed portlets could contain malicious code that executes with the privileges of the application server, potentially compromising the entire underlying infrastructure.
The security implications of CVE-2023-47321 align with CWE-285, which addresses improper authorization in access control systems, and can be mapped to ATT&CK technique T1059 for execution through malicious code deployment. Organizations utilizing Silverpeas Core 6.3.1 should immediately implement mitigations including mandatory access control validation for all deployment operations, enhanced monitoring of administrative activities, and immediate patching of the affected software version. The vulnerability demonstrates a critical gap in the application's security architecture where administrative functions are not properly sandboxed or validated against unauthorized usage patterns.