CVE-2012-0691 in License
Summary
by MITRE
CA License (aka CA Licensing) before 1.90.03 does not properly restrict system commands, which allows local users to gain privileges via unspecified vectors.
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Analysis
by VulDB Data Team • 04/17/2017
The vulnerability identified as CVE-2012-0691 affects CA License (also known as CA Licensing) software versions prior to 1.90.03, representing a critical privilege escalation flaw that enables local attackers to execute arbitrary system commands with elevated privileges. This issue stems from insufficient input validation and command execution restrictions within the licensing component, creating a pathway for malicious users to bypass security controls and potentially compromise the entire system. The vulnerability specifically manifests in the improper handling of system commands, where the software fails to adequately sanitize or restrict user-supplied inputs that are subsequently executed as system commands.
The technical nature of this vulnerability aligns with CWE-78, which describes improper neutralization of special elements used in OS commands, and CWE-20, which addresses input validation issues. The flaw operates at the command injection level where user-controllable data is directly incorporated into system command execution without proper sanitization or validation. Attackers can exploit this by crafting malicious inputs that, when processed by the vulnerable licensing software, result in unintended system command execution. This typically occurs through manipulation of environment variables, command-line arguments, or configuration parameters that are then passed to system-level functions without proper filtering or escaping mechanisms.
From an operational perspective, the impact of this vulnerability extends beyond simple privilege escalation to potentially enable full system compromise. Local users who can interact with the CA Licensing component can leverage this weakness to execute commands with the privileges of the affected service account, which often runs with elevated permissions. The vulnerability's exploitation can lead to unauthorized access to sensitive system resources, data exfiltration, persistence mechanisms installation, and further lateral movement within the network. Given that CA Licensing is commonly used for software license management across enterprise environments, the potential attack surface is significant, particularly in scenarios where the licensing service runs with administrative privileges.
The attack vector for this vulnerability typically involves local system access, making it particularly concerning in environments where least privilege principles are not strictly enforced. The exploitation process generally requires an attacker to have access to the system where CA Licensing is installed, either through legitimate user accounts or through other initial compromise vectors. Once the attacker gains local access, they can manipulate the licensing software's command execution pathways to inject and execute arbitrary commands. This vulnerability is particularly dangerous because it can be exploited without requiring network connectivity or external attack surfaces, making it a significant concern for organizations with compromised local accounts or insider threats.
Organizations should immediately upgrade to CA Licensing version 1.90.03 or later, which contains the necessary patches to address the command execution restrictions. System administrators should also implement additional monitoring for unusual command execution patterns and ensure that the licensing service runs with minimal required privileges. The mitigation strategy should include regular vulnerability assessments of licensing and software management components, as well as comprehensive security hardening of all system services that handle user inputs. Additionally, organizations should consider implementing application whitelisting controls and privilege separation mechanisms to limit the potential impact of such vulnerabilities. The ATT&CK framework categorizes this vulnerability under privilege escalation techniques, specifically targeting the execution of malicious commands through software flaws, making it a critical component in enterprise security defense strategies.