CVE-2013-5012 in Web Gateway
Summary
by MITRE
Multiple SQL injection vulnerabilities in the management console on the Symantec Web Gateway (SWG) appliance before 5.2 allow remote authenticated users to execute arbitrary SQL commands via unspecified vectors.
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Analysis
by VulDB Data Team • 06/09/2021
The CVE-2013-5012 vulnerability represents a critical security flaw in Symantec Web Gateway appliances that affects versions prior to 5.2. This vulnerability resides within the management console component of the web gateway appliance and demonstrates a classic SQL injection weakness that can be exploited by authenticated attackers. The vulnerability stems from inadequate input validation and sanitization within the web application's database interaction layer, creating an attack surface where malicious SQL commands can be injected and executed with the privileges of the database user. The affected Symantec Web Gateway appliance serves as a crucial security component for organizations, providing web filtering, content inspection, and threat prevention services, making this vulnerability particularly concerning for enterprise environments. The management console functionality allows administrators to configure and monitor the appliance, but the SQL injection flaw means that any authenticated user with access to this console can potentially escalate their privileges and execute unauthorized database operations.
The technical exploitation of this vulnerability occurs through the manipulation of input parameters that are directly passed to database queries within the management console. Attackers can craft specially formatted inputs that bypass normal validation mechanisms and inject malicious SQL payloads into the backend database operations. These attacks typically involve the insertion of SQL syntax elements such as UNION statements, stored procedure calls, or direct command execution sequences that can manipulate or extract data from the underlying database. The vulnerability's classification as a SQL injection flaw aligns with CWE-89, which specifically addresses improper neutralization of special elements used in SQL commands. The attack vector is particularly dangerous because it requires only authenticated access to the management console, which means that attackers who have already compromised administrative credentials or gained access through other means can leverage this vulnerability to escalate their privileges and gain deeper system control.
The operational impact of CVE-2013-5012 extends beyond simple data theft or manipulation, as it can enable attackers to completely compromise the management console functionality and potentially the entire appliance. Successful exploitation could allow attackers to modify security policies, disable protective features, extract sensitive configuration data, or even gain access to the underlying operating system through database-level privileges. Organizations using Symantec Web Gateway appliances are particularly vulnerable since these devices often serve as central security points in enterprise networks, making them attractive targets for attackers seeking persistent access. The vulnerability also presents challenges for network defenders because it can be used to hide malicious activities within legitimate management console sessions, making detection more difficult. The impact is further amplified by the fact that these appliances typically handle sensitive network traffic and security data, meaning that database compromise could expose extensive information about network operations, user activities, and security configurations.
Organizations should implement immediate mitigations including upgrading to Symantec Web Gateway version 5.2 or later, which contains the necessary patches to address the SQL injection vulnerability. Network segmentation and access control measures should be strengthened to limit management console access to only authorized administrators, while implementing additional authentication controls such as multi-factor authentication. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other components of the security infrastructure. The vulnerability also highlights the importance of secure coding practices and input validation in web applications, aligning with ATT&CK technique T1190 for exploitation of vulnerabilities in web applications. Organizations should also consider implementing database activity monitoring and anomaly detection systems to identify potential exploitation attempts, as well as maintaining comprehensive backup and recovery procedures to address potential compromise scenarios. The incident underscores the necessity of regular security updates and patch management processes, particularly for critical infrastructure components that handle sensitive security data and network traffic.