CVE-2016-1373 in Finesse
Summary
by MITRE
The gadgets-integration API in Cisco Finesse 8.5(1) through 8.5(5), 8.6(1), 9.0(1), 9.0(2), 9.1(1), 9.1(1)SU1, 9.1(1)SU1.1, 9.1(1)ES1 through 9.1(1)ES5, 10.0(1), 10.0(1)SU1, 10.0(1)SU1.1, 10.5(1), 10.5(1)ES1 through 10.5(1)ES4, 10.5(1)SU1, 10.5(1)SU1.1, 10.5(1)SU1.7, 10.6(1), 10.6(1)SU1, 10.6(1)SU2, and 11.0(1) allows remote attackers to conduct server-side request forgery (SSRF) attacks via a crafted request, aka Bug ID CSCuw86623.
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Analysis
by VulDB Data Team • 07/29/2022
The vulnerability described in CVE-2016-1373 represents a critical server-side request forgery flaw within Cisco Finesse's gadgets-integration API component. This issue affects multiple versions of Cisco Finesse across several release series, indicating a widespread problem that spans from version 8.5(1) through 11.0(1). The vulnerability specifically resides in how the API handles incoming requests, creating an opportunity for remote attackers to manipulate the system's behavior by crafting malicious requests that can cause the server to make unintended requests to arbitrary destinations.
The technical exploitation of this vulnerability occurs through a crafted request that leverages the gadgets-integration API's insufficient input validation mechanisms. When an attacker submits a specially crafted request to the affected API endpoint, the system fails to properly validate the request parameters, allowing the attacker to influence the target of subsequent server requests. This creates a pathway for attackers to potentially access internal network resources, bypass firewalls, or interact with backend systems that should otherwise be isolated from external access. The vulnerability operates at the application layer and can be classified under CWE-918 as a server-side request forgery, where the application fetches resources from a URL specified by user input without proper validation.
The operational impact of this vulnerability is significant for organizations utilizing Cisco Finesse, as it provides attackers with the ability to perform reconnaissance and potentially gain access to sensitive internal systems. An attacker could leverage this flaw to probe internal network services, access backend databases, or even escalate privileges within the system. The vulnerability affects the integrity and confidentiality of the communication channels and could potentially lead to further compromise of the system. The wide range of affected versions suggests that organizations across multiple release cycles were exposed to this risk, making it a particularly concerning issue for enterprise environments that rely on Cisco Finesse for customer relationship management and contact center operations.
Organizations should implement immediate mitigations including network segmentation to isolate the affected Finesse systems, implementing strict access controls on the gadgets-integration API endpoints, and applying the vendor-provided security patches as soon as they become available. The vulnerability aligns with ATT&CK technique T1071.004 for application layer protocol: DNS, as attackers may use the SSRF capability to make requests to internal DNS servers or other services. Additionally, organizations should conduct thorough network monitoring to detect unusual outbound traffic patterns that may indicate exploitation attempts. The remediation strategy should include comprehensive testing of the applied patches in non-production environments before deployment to ensure that the security fixes do not introduce functional regressions in the contact center applications.