CVE-2022-48459 in SC7731E
Summary
by MITRE • 11/01/2023
In TeleService, there is a possible system crash due to improper input validation. This could lead to local denial of service with no additional execution privileges needed
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Analysis
by VulDB Data Team • 11/29/2023
The vulnerability identified as CVE-2022-48459 affects the TeleService component within a telecommunications system architecture, representing a critical weakness in input validation mechanisms that can result in system instability. This issue manifests as a potential system crash condition that occurs when the service processes malformed or unexpected input data without proper sanitization or validation checks. The vulnerability exists at the application level within the TeleService module, which typically handles telecommunication protocols and data processing functions essential for network operations.
The technical flaw stems from insufficient input validation procedures implemented within the TeleService application, allowing malicious or malformed data to traverse the system's input processing pipeline without adequate filtering. This weakness creates an exploitable condition where an attacker can craft specific input sequences that cause the service to behave unpredictably, ultimately leading to a complete system crash or denial of service state. The vulnerability classification aligns with CWE-20, which addresses "Improper Input Validation" as a fundamental security weakness that permits attackers to manipulate application behavior through crafted inputs. The lack of proper input sanitization means that the system cannot distinguish between legitimate and malicious data, creating a pathway for exploitation.
The operational impact of this vulnerability extends beyond simple system disruption, as it can compromise the availability of critical telecommunication services without requiring any elevated privileges or specialized attack capabilities. An attacker with minimal access can trigger a local denial of service condition that affects the entire TeleService functionality, potentially disrupting communication networks and services that depend on this component. This vulnerability particularly affects systems where TeleService operates as a core network function, making it a significant concern for network infrastructure providers and telecommunications operators. The local nature of the attack means that exploitation can occur from within the system's own network boundaries, reducing the complexity of the attack vector.
Mitigation strategies for CVE-2022-48459 should focus on implementing comprehensive input validation controls within the TeleService module, including parameterized input sanitization and robust error handling mechanisms. Organizations should deploy input filtering solutions that can identify and reject malformed data before it reaches critical processing functions. The remediation process involves updating the TeleService application with proper validation routines that check data types, lengths, and formats against predefined acceptable parameters. Security teams should also implement monitoring systems to detect unusual input patterns that might indicate exploitation attempts. According to ATT&CK framework, this vulnerability relates to T1499.004 which covers "Cloud Service Dashboard" and T1566.002 which addresses "Phishing via Service" but the primary concern here is the system crash rather than data exfiltration, making it primarily a denial of service threat that aligns with the broader category of system instability attacks. Network segmentation and access controls should be implemented to limit potential attack surfaces while applying patches or updates to the TeleService component to address the root cause of the input validation failure.