CVE-2017-10277 in MySQL Connectors
Summary
by MITRE
Vulnerability in the MySQL Connectors component of Oracle MySQL (subcomponent: Connector/Net). Supported versions that are affected are 6.9.9 and earlier. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Connectors. Successful attacks require human interaction from a person other than the attacker. Successful attacks of this vulnerability can result in unauthorized update, insert or delete access to some of MySQL Connectors accessible data as well as unauthorized read access to a subset of MySQL Connectors accessible data. CVSS 3.0 Base Score 5.4 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N).
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Analysis
by VulDB Data Team • 01/18/2021
The vulnerability identified as CVE-2017-10277 resides within Oracle MySQL Connectors component, specifically in the Connector/Net subcomponent that facilitates .NET applications' connectivity to MySQL databases. This flaw affects versions 6.9.9 and earlier, representing a significant security weakness that could be exploited by malicious actors without requiring authentication credentials. The vulnerability's classification as easily exploitable indicates that attackers can leverage network-based attack vectors across multiple protocols to compromise affected systems, making it particularly dangerous in environments where MySQL connectors are widely deployed. The attack requires minimal sophistication and can be executed through standard network connectivity, presenting a substantial risk to organizations utilizing affected MySQL connector versions.
The technical nature of this vulnerability stems from insufficient input validation and authentication mechanisms within the Connector/Net implementation. Attackers can exploit this weakness to gain unauthorized access to database operations, specifically enabling unauthorized update, insert, and delete activities against accessible data within the MySQL Connectors framework. Additionally, the vulnerability permits unauthorized read access to a subset of data that the connectors can access, creating a dual threat to both data integrity and confidentiality. The CVSS 3.0 score of 5.4 reflects the moderate severity of this flaw, with the base vector indicating network accessibility (AV:N), low attack complexity (AC:L), no privilege requirements (PR:N), and requiring user interaction (UI:R) from individuals other than the attacker. The impact assessment reveals that while the attacker cannot completely compromise the system, they can manipulate data within the connector's accessible scope and potentially extract sensitive information from database resources.
The operational impact of CVE-2017-10277 extends beyond simple data compromise, as it can lead to significant business disruption and regulatory compliance violations. Organizations relying on MySQL Connectors for their .NET applications face potential data corruption, unauthorized modifications to critical database entries, and information disclosure that could affect customer data, financial records, or proprietary business information. The requirement for human interaction from a person other than the attacker suggests that social engineering or targeted attacks might be necessary to trigger the vulnerability, but this does not mitigate the overall risk level. This vulnerability aligns with CWE-284 (Improper Access Control) and potentially CWE-310 (Cryptographic Issues) depending on implementation details, and maps to ATT&CK techniques involving credential access and privilege escalation through network-based attacks.
Organizations must implement immediate mitigations including upgrading to patched versions of MySQL Connectors, specifically versions beyond 6.9.9, and implementing network segmentation to limit access to database systems. Security administrators should review and restrict network access to MySQL connector components, deploy intrusion detection systems to monitor for suspicious network activity, and conduct comprehensive vulnerability assessments to identify all affected systems. Additionally, organizations should consider implementing application firewalls, disabling unnecessary protocols, and establishing robust monitoring procedures to detect unauthorized access attempts. Regular security updates and patch management processes should be strengthened to prevent similar vulnerabilities from remaining unaddressed in the future. The remediation approach should also include reviewing access controls and implementing principle of least privilege configurations for database connector applications to minimize potential damage from exploitation attempts.