CVE-2012-0733 in Rational AppScan
Summary
by MITRE
IBM Rational AppScan Enterprise 5.x and 8.x before 8.5.0.1, when Integrated Windows authentication is used, allows remote authenticated users to obtain administrative privileges by hijacking a session associated with the service account.
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Analysis
by VulDB Data Team • 01/26/2018
This vulnerability exists in IBM Rational AppScan Enterprise versions 5.x and 8.x prior to 8.5.0.1 when Integrated Windows authentication is configured. The flaw stems from improper session management that enables authenticated attackers to hijack sessions belonging to service accounts with elevated privileges. The vulnerability is classified under CWE-306, which addresses "Missing Authentication for Critical Function" and specifically relates to inadequate session handling mechanisms that allow privilege escalation through session hijacking. When Integrated Windows authentication is employed, the system creates service accounts that operate with administrative privileges, and the session management protocol fails to properly validate session integrity or authenticate subsequent requests from hijacked sessions.
The technical exploitation occurs when an attacker gains authenticated access to the system and identifies a valid session associated with a service account. Through various network interception or session manipulation techniques, the attacker can capture and reuse session tokens to impersonate the service account. This creates a critical privilege escalation scenario where the attacker can perform administrative functions such as modifying scan configurations, accessing sensitive data, or manipulating the application scanning environment. The vulnerability is particularly concerning because service accounts typically possess extensive system privileges that far exceed normal user permissions, making session hijacking equivalent to obtaining administrative control over the entire scanning platform.
The operational impact of this vulnerability extends beyond simple unauthorized access to encompass complete system compromise and potential data breaches. Attackers can leverage the hijacked administrative sessions to modify scan policies, disable security controls, or exfiltrate sensitive information from the scanning environment. This represents a significant risk to organizations relying on AppScan Enterprise for security testing, as the compromised system could be used to bypass security controls or conduct unauthorized scans against internal networks. The vulnerability also aligns with ATT&CK technique T1563.002, which covers "Ransomware: Timestomp" and other session manipulation tactics that enable persistent access and privilege escalation within enterprise environments.
Organizations should implement immediate mitigations including upgrading to IBM Rational AppScan Enterprise 8.5.0.1 or later versions that address this session hijacking vulnerability. Network segmentation and monitoring should be enhanced to detect unusual session activity patterns, particularly those involving service account access. Additional protective measures include implementing stronger session management protocols with token regeneration, enforcing multi-factor authentication for administrative accounts, and deploying network intrusion detection systems to monitor for session hijacking attempts. Security configuration reviews should ensure that service accounts operate with minimal required privileges and that session timeout mechanisms are properly enforced. The vulnerability demonstrates the critical importance of proper session management and authentication controls in enterprise security platforms, as inadequate session handling can provide attackers with direct pathways to administrative control over critical security infrastructure.