CVE-2014-3020 in Tivoli Integrated Portal
Summary
by MITRE
install.sh in the Embedded WebSphere Application Server (eWAS) 7.0 before FP33 in IBM Tivoli Integrated Portal (TIP) 2.1 and 2.2 sets world-writable permissions for the installRoot directory tree, which allows local users to gain privileges via a Trojan horse program.
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Analysis
by VulDB Data Team • 03/06/2018
The vulnerability identified as CVE-2014-3020 represents a critical privilege escalation flaw within the IBM Tivoli Integrated Portal 2.1 and 2.2 platforms, specifically affecting the Embedded WebSphere Application Server component. This issue stems from improper permission handling during the installation process, where the install.sh script fails to properly secure the installation directory structure. The flaw allows local attackers to manipulate the system by placing malicious Trojan horse programs within the world-writable installRoot directory tree, potentially enabling them to execute arbitrary code with elevated privileges.
The technical root cause of this vulnerability aligns with CWE-732, which addresses improper permission assignment for critical system resources. The installation script in question creates directory structures with world-writable permissions, violating fundamental security principles of least privilege and proper access control. This misconfiguration enables any local user to modify critical installation components, including executables, configuration files, and libraries that may be loaded during normal system operation. The flaw exists specifically in IBM Tivoli Integrated Portal versions 2.1 and 2.2 when paired with Embedded WebSphere Application Server 7.0 before fix pack 33, making these combinations particularly vulnerable to exploitation.
The operational impact of this vulnerability extends beyond simple privilege escalation, as it creates a persistent backdoor mechanism within the target system. Local users who can execute the Trojan horse program gain the ability to modify core system components, potentially leading to complete system compromise. The vulnerability is particularly dangerous because it operates at the installation phase, meaning that even if the system is later secured, the malicious modifications can persist and continue to provide unauthorized access. This characteristic places the vulnerability in the ATT&CK framework under privilege escalation techniques, specifically targeting the use of insecure permissions and weak file system controls to achieve elevated system access.
Organizations affected by this vulnerability should immediately apply the relevant IBM fix pack 33 for Embedded WebSphere Application Server 7.0 to resolve the permission handling issue. System administrators should conduct thorough audits of the installRoot directory structures to identify any unauthorized modifications that may have occurred during the vulnerable period. Additionally, implementing proper file system monitoring and access control policies can help detect similar permission misconfigurations in other system components. The vulnerability highlights the importance of proper privilege management during software installation processes and demonstrates how seemingly minor permission settings can create significant security risks. Security teams should also consider implementing automated vulnerability scanning tools that can detect world-writable permissions in critical system directories as part of their ongoing security monitoring activities.