CVE-2017-6557 in ArrayOS
Summary
by MITRE
SQL injection vulnerability in ArrayOS before AG 9.4.0.135, when the portal bookmark function is enabled, allows remote authenticated users to execute arbitrary SQL commands via unspecified vectors.
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Analysis
by VulDB Data Team • 09/24/2020
The vulnerability identified as CVE-2017-6557 represents a critical SQL injection flaw within ArrayOS software versions prior to AG 9.4.0.135. This security weakness specifically manifests when the portal bookmark function is enabled, creating a pathway for remote authenticated attackers to execute arbitrary SQL commands against the affected system. The vulnerability falls under the category of CWE-89 SQL Injection, which is classified as a persistent and severe threat to database security. The attack vector leverages the bookmark functionality to inject malicious SQL code, bypassing normal authentication and authorization mechanisms that should protect database operations.
The technical implementation of this vulnerability exploits the improper handling of user input within the portal bookmark feature. When authenticated users interact with the bookmark function, the system fails to adequately sanitize or validate the input parameters before incorporating them into SQL queries. This flaw enables attackers to manipulate the underlying database queries by injecting malicious SQL syntax, potentially allowing them to extract sensitive data, modify database contents, or even gain elevated privileges within the system. The vulnerability's impact is amplified by the fact that it requires only authenticated access, meaning that users with legitimate credentials can exploit this weakness without needing to bypass additional authentication layers.
From an operational perspective, this vulnerability poses significant risks to organizations utilizing ArrayOS systems, particularly those with database-centric applications that rely on the portal bookmark functionality. The remote execution capability means attackers can potentially compromise database integrity from outside the organization's network perimeter, especially if the system is accessible over the internet or through remote access protocols. The attack can result in data exfiltration, unauthorized data modification, or complete database compromise, depending on the attacker's objectives and the system's configuration. This vulnerability directly aligns with ATT&CK technique T1071.004 Application Layer Protocol: DNS, as it may involve the use of database protocols to execute malicious commands, and T1046 Network Service Scanning, as attackers might need to identify vulnerable systems before exploitation.
Organizations should implement immediate mitigations including applying the vendor-provided patch for ArrayOS AG 9.4.0.135 or higher, which addresses the SQL injection vulnerability in the portal bookmark function. Additionally, administrators should disable the portal bookmark functionality if it is not essential for business operations, thereby eliminating the attack surface. Input validation and parameterized queries should be implemented throughout the application to prevent similar vulnerabilities in other components. Network segmentation and access controls should be reviewed to limit the potential impact of successful exploitation, while regular security assessments should be conducted to identify and remediate other potential SQL injection vulnerabilities. The mitigation strategy should also include monitoring database logs for suspicious activity and implementing proper logging of all user actions within the portal system to facilitate forensic analysis in case of compromise.