CVE-2017-10270 in Identity Manager Connector
Summary
by MITRE
Vulnerability in the Oracle Identity Manager Connector component of Oracle Fusion Middleware (subcomponent: Microsoft Active Directory). The supported version that is affected is 9.1.1.5.0. Easily exploitable vulnerability allows unauthenticated attacker with logon to the infrastructure where Oracle Identity Manager Connector executes to compromise Oracle Identity Manager Connector. Successful attacks require human interaction from a person other than the attacker and while the vulnerability is in Oracle Identity Manager Connector, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Identity Manager Connector accessible data and unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of Oracle Identity Manager Connector. CVSS 3.0 Base Score 8.2 (Integrity and Availability impacts). CVSS Vector: (CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H).
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Analysis
by VulDB Data Team • 01/17/2021
The vulnerability identified as CVE-2017-10270 resides within the Oracle Identity Manager Connector component of Oracle Fusion Middleware, specifically targeting the Microsoft Active Directory subcomponent version 9.1.1.5.0. This flaw represents a significant security weakness that can be exploited by attackers with access to the underlying infrastructure where the connector operates. The vulnerability's classification as easily exploitable indicates that sophisticated attack techniques are not required, making it particularly dangerous in environments where the attack surface is broad. The attack vector requires local access to the system, meaning an attacker must already have some level of system presence or access to the infrastructure hosting the Oracle Identity Manager Connector service.
The technical nature of this vulnerability stems from insufficient authentication and authorization controls within the connector's interaction with Microsoft Active Directory services. This weakness allows an attacker with local system access to potentially compromise the entire connector service, creating a pathway for unauthorized data manipulation and system disruption. The vulnerability's impact extends beyond the immediate connector component, as successful exploitation can affect additional Oracle Fusion Middleware products that may be interconnected with the compromised system. The CVSS 3.0 score of 8.2 reflects the severity of both integrity and availability impacts, with the integrity component rated high due to potential unauthorized data modification and the availability component also rated high due to the possibility of complete denial of service through system crashes or hangs.
The operational impact of this vulnerability is substantial, as it enables attackers to create, delete, or modify critical data within the Oracle Identity Manager Connector's accessible data scope. This unauthorized access capability represents a serious threat to data integrity and can lead to significant operational disruptions when combined with the availability impact that can cause complete system crashes. The requirement for human interaction from someone other than the attacker suggests that the exploitation might involve social engineering elements or require specific conditions to be met, but the underlying technical flaw remains a critical weakness that can be leveraged by determined adversaries. Organizations utilizing Oracle Identity Manager Connector in their identity management infrastructure face significant risk from this vulnerability, particularly if proper network segmentation and access controls are not implemented.
Mitigation strategies should focus on implementing strict access controls and network segmentation to limit local system access to the Oracle Identity Manager Connector service. Organizations should ensure that only authorized personnel have access to the infrastructure hosting critical middleware components and that proper authentication mechanisms are in place to prevent unauthorized local access. Regular patching and updates of Oracle Fusion Middleware components should be prioritized to address known vulnerabilities and reduce the attack surface. Additionally, monitoring systems should be implemented to detect unusual activity patterns that might indicate exploitation attempts, and security controls should be designed to prevent lateral movement within the network if an attacker gains access to the system. The vulnerability aligns with CWE-284 (Improper Access Control) and may be related to ATT&CK technique T1078 (Valid Accounts) when attackers leverage legitimate access to exploit the connector service. Organizations should also consider implementing application-level controls and logging mechanisms to better detect and respond to potential exploitation attempts.