CVE-2017-8122 in UMA
Summary
by MITRE
The UMA product with software V200R001 has a privilege elevation vulnerability due to insufficient validation or improper processing of parameters. An attacker could craft specific packets to exploit these vulnerabilities to gain elevated privileges.
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Analysis
by VulDB Data Team • 01/11/2023
The vulnerability identified as CVE-2017-8122 affects the UMA product version V200R001 and represents a critical privilege escalation flaw that stems from inadequate parameter validation mechanisms. This weakness exists within the software's input processing pipeline where insufficient sanitization or validation of user-supplied data allows malicious actors to manipulate system behavior through crafted packet inputs. The vulnerability resides in the product's authentication and authorization framework where parameter handling fails to properly verify or process incoming data sequences, creating an exploitable condition that undermines the system's security posture.
The technical implementation of this vulnerability demonstrates a classic insufficient validation pattern that aligns with CWE-20, which specifically addresses improper input validation in software systems. Attackers can leverage this flaw by constructing specially crafted network packets that exploit the parameter processing logic to bypass normal access controls and elevate their privileges within the system. The exploitation process typically involves sending malformed or specially constructed packets that trigger the vulnerable code path, allowing unauthorized users to assume higher privilege levels than initially granted. This type of vulnerability represents a significant concern in network security systems where proper input validation is essential to maintain system integrity and prevent unauthorized access.
The operational impact of CVE-2017-8122 extends beyond simple privilege escalation to encompass potential system compromise and data breach scenarios. Once an attacker successfully exploits this vulnerability, they can gain administrative access to the UMA system, potentially allowing them to modify configurations, access sensitive data, disable security controls, or establish persistent access points within the network infrastructure. The implications are particularly severe given that UMA products are typically deployed in enterprise environments where they serve as critical security components. The vulnerability's exploitation can lead to complete system compromise, making it a high-priority target for threat actors seeking to establish persistent footholds within organizational networks. This aligns with ATT&CK technique T1068 which covers "Exploitation for Privilege Escalation" and demonstrates how such vulnerabilities can be leveraged to achieve broader operational objectives.
Mitigation strategies for CVE-2017-8122 should focus on implementing robust input validation controls and parameter sanitization mechanisms within the UMA product's software architecture. Organizations should prioritize applying vendor-provided patches or updates that address the specific parameter validation flaws identified in the vulnerability. Network segmentation and monitoring solutions should be deployed to detect anomalous packet patterns that may indicate exploitation attempts. The implementation of principle of least privilege access controls and regular security assessments can help minimize the potential impact of such vulnerabilities. Additionally, network administrators should consider implementing intrusion detection systems that can identify and alert on suspicious packet structures that match known exploitation patterns for this specific vulnerability. Security teams should also conduct thorough vulnerability assessments to identify similar parameter validation issues in other network components and ensure comprehensive protection across the entire infrastructure.