CVE-2016-1393 in Cloud Network Automation Provisioner
Summary
by MITRE
SQL injection vulnerability in Cisco Cloud Network Automation Provisioner (CNAP) 1.0 and 1.1 allows remote authenticated users to execute arbitrary SQL commands via a crafted URL, aka Bug ID CSCuy72175.
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Analysis
by VulDB Data Team • 11/24/2018
The vulnerability identified as CVE-2016-1393 represents a critical SQL injection flaw within Cisco Cloud Network Automation Provisioner version 1.0 and 1.1. This vulnerability resides in the web-based management interface of the CNAP component, which serves as a provisioning engine for cloud network automation tasks. The flaw stems from inadequate input validation mechanisms that fail to properly sanitize user-supplied data before incorporating it into SQL query constructs. Attackers exploiting this vulnerability can manipulate the application's database interactions by injecting malicious SQL payloads through carefully crafted URLs, thereby bypassing normal authentication and authorization controls.
The technical implementation of this vulnerability aligns with CWE-89, which specifically addresses SQL injection flaws where untrusted data is directly incorporated into SQL command strings without proper sanitization. The attack vector requires an authenticated user context, meaning that adversaries must first establish valid credentials to access the CNAP web interface before attempting exploitation. This authentication requirement somewhat limits the attack surface but does not eliminate the severity of the vulnerability, as compromised accounts or credential theft scenarios can still lead to full database compromise. The vulnerability affects the application's parameter handling mechanisms, particularly in URL parsing and query construction components.
The operational impact of this vulnerability extends beyond simple data theft, as successful exploitation enables attackers to execute arbitrary SQL commands on the underlying database server. This capability allows for complete database enumeration, data modification, deletion, and potentially the execution of operating system commands if the database user has elevated privileges. The compromised system could experience unauthorized access to sensitive network configuration data, user credentials, and operational information that would normally be protected by the application's security controls. Organizations utilizing affected CNAP versions face significant risk of data breaches and potential network infrastructure compromise, especially in environments where the provisioner handles critical network automation tasks.
Mitigation strategies for CVE-2016-1393 should prioritize immediate patching of affected Cisco CNAP installations to the latest available software versions that contain the necessary security fixes. Organizations should implement network segmentation to limit access to the CNAP web interface and enforce strict access controls through role-based permissions. Additionally, security monitoring should be enhanced to detect unusual database query patterns that might indicate exploitation attempts. The vulnerability demonstrates the importance of input validation and parameterized queries as defensive measures against SQL injection attacks, aligning with ATT&CK technique T1071.005 for application layer protocol manipulation. Regular security assessments and penetration testing should be conducted to identify similar vulnerabilities in other network management components, while implementing database activity monitoring solutions can help detect and respond to exploitation attempts in real-time.