CVE-2023-42715 in SC7731E
Summary
by MITRE • 12/04/2023
In telephony service, there is a possible missing permission check. This could lead to local information disclosure with no additional execution privileges needed
If you want to get best quality of vulnerability data, you may have to visit VulDB.
Analysis
by VulDB Data Team • 12/22/2023
The vulnerability identified as CVE-2023-42715 resides within telephony service components where a critical missing permission check has been discovered. This flaw represents a significant security weakness that allows unauthorized access to sensitive information without requiring any additional execution privileges or elevated user rights. The vulnerability specifically affects systems that handle telephony services and could potentially impact various telecommunications infrastructure components including mobile networks, VoIP systems, and telephony applications.
From a technical perspective, the missing permission check creates an unauthorized access vector where local processes or applications can bypass normal security controls to retrieve information that should be restricted. This type of vulnerability aligns with CWE-284 which addresses improper access control and represents a classic case of insufficient privilege checking. The flaw operates at the service level where proper authorization mechanisms have not been implemented or maintained, allowing information disclosure through legitimate service interfaces.
The operational impact of this vulnerability extends across multiple domains within telecommunications environments. Local information disclosure means that any process running with basic user privileges could potentially access sensitive telephony data including call logs, user identification information, network configuration details, or other confidential telecommunication metadata. This information could be exploited by malicious actors to gain insights into network operations, user behavior patterns, or system configurations that could facilitate further attacks.
Attackers could leverage this vulnerability to perform reconnaissance activities without requiring additional privileges, potentially leading to more sophisticated attacks. The lack of additional execution privileges needed makes this vulnerability particularly dangerous as it can be exploited by low-privilege users or processes. This characteristic aligns with ATT&CK technique T1083 which covers directory and file system discovery, as the vulnerability enables unauthorized access to information that should remain protected.
Organizations should implement immediate mitigations including verification of proper permission checks within telephony service components, implementation of access control mechanisms, and regular security audits of telephony infrastructure. System administrators should review and enforce proper authorization controls, ensuring that all telephony service interfaces properly validate user privileges before granting access to sensitive information. Additionally, implementing network segmentation and monitoring for unauthorized information access attempts can help detect potential exploitation of this vulnerability.
The vulnerability demonstrates the critical importance of proper access control implementation in telecommunications systems where sensitive user and network information must be protected. Security teams should prioritize patching affected systems, implementing proper logging and monitoring for unauthorized access attempts, and conducting thorough security assessments of all telephony service components to ensure adequate protection against similar vulnerabilities. This type of flaw highlights the need for continuous security validation in complex telecommunications environments where multiple service interfaces interact with sensitive data.