CVE-2012-3238 in Astaro
Summary
by MITRE
Cross-site scripting (XSS) vulnerability in the Backup/Restore component in WebAdmin in Astaro Security Gateway before 8.305 allows remote attackers to inject arbitrary web script or HTML via the "Comment (optional)" field.
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Analysis
by VulDB Data Team • 04/27/2018
The CVE-2012-3238 vulnerability represents a critical cross-site scripting flaw within the WebAdmin interface of Astaro Security Gateway systems. This vulnerability specifically targets the Backup/Restore component's "Comment (optional)" field, which serves as an entry point for malicious actors to inject harmful web scripts or HTML content. The affected version range includes all Astaro Security Gateway releases prior to 8.305, indicating a significant window of exposure for organizations utilizing these security appliances. The vulnerability's classification as a server-side input validation issue means that the system fails to properly sanitize user-supplied input before processing or storing it, creating a persistent vector for exploitation.
The technical exploitation of this vulnerability occurs through the manipulation of the Comment field during backup operations, where an attacker can craft malicious input that gets executed in the context of other users' browsers. This type of vulnerability directly maps to CWE-79 - Improper Neutralization of Input During Web Page Generation, which is a fundamental weakness in web application security. The flaw allows for arbitrary code execution in the victim's browser context, potentially enabling session hijacking, data theft, or further exploitation of the compromised system. The vulnerability's remote nature means that attackers do not require local access or authentication to exploit this weakness, making it particularly dangerous in networked environments.
The operational impact of CVE-2012-3238 extends beyond simple script injection, as it can enable attackers to establish persistent access to the administrative interface. When administrators perform backup operations and view comments associated with backups, the malicious scripts execute in their browser context, potentially compromising their sessions and granting unauthorized access to critical security configurations. This vulnerability directly aligns with ATT&CK technique T1059.007 - Command and Scripting Interpreter: JavaScript, as it leverages browser-based scripting capabilities to execute malicious payloads. The attack chain typically involves initial compromise through backup comment injection, followed by session hijacking or privilege escalation through the administrative interface.
Organizations affected by this vulnerability should immediately implement the patch released in Astaro Security Gateway version 8.305, which addresses the input sanitization issue in the Backup/Restore component. Additional mitigations include implementing strict input validation for all user-supplied data, employing content security policies to prevent script execution, and conducting regular security assessments of administrative interfaces. The vulnerability demonstrates the importance of proper input validation in web applications and highlights the need for comprehensive security testing of administrative components. Organizations should also consider implementing network segmentation to limit access to administrative interfaces and deploy web application firewalls to detect and block malicious script injection attempts. This vulnerability underscores the critical nature of maintaining up-to-date security appliances and the potential consequences of delayed patch deployment in enterprise security infrastructure.