CVE-2022-41019 in QUARTZ-GOLD
Summary
by MITRE • 01/27/2023
Several stack-based buffer overflow vulnerabilities exist in the DetranCLI command parsing functionality of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020. A specially-crafted network packet can lead to arbitrary command execution. An attacker can send a sequence of requests to trigger these vulnerabilities.This buffer overflow is in the function that manages the 'vpn l2tp advanced name WORD dns (yes|no) mtu <128-16384> mru <128-16384> auth (on|off) password (WORD|null)' command template.
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Analysis
by VulDB Data Team • 11/05/2025
The CVE-2022-41019 vulnerability represents a critical stack-based buffer overflow within the DetranCLI command parsing system of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020 network infrastructure device. This flaw resides in the command processing functionality that handles specific vpn l2tp advanced configuration parameters, making it particularly dangerous as it directly impacts the device's ability to manage virtual private network connections. The vulnerability manifests when the system processes a crafted network packet containing malicious input that exceeds the allocated buffer space, creating an exploitable condition that can be leveraged by remote attackers. The affected command template specifically processes parameters including dns configuration, mtu and mru values within the range of 128-16384, along with authentication settings and password specifications, all of which can be manipulated to trigger the overflow condition. This represents a classic stack buffer overflow vulnerability that falls under CWE-121, which specifically addresses stack-based buffer overflow conditions where insufficient bounds checking allows attackers to overwrite adjacent memory locations.
The operational impact of this vulnerability extends far beyond simple denial of service scenarios, as it enables full arbitrary code execution on the affected device. Attackers can exploit this condition by crafting malicious network packets that contain oversized input strings within the vpn l2tp advanced command parameters, particularly targeting the WORD and numeric value fields. When the vulnerable parsing function processes these inputs without proper bounds checking, the excessive data overflows the allocated stack buffer and corrupts adjacent memory segments, potentially overwriting return addresses, function pointers, or other critical control data. This memory corruption can be exploited to redirect execution flow to attacker-controlled code, effectively allowing complete system compromise. The vulnerability's remote exploitation capability means that attackers do not require physical access to the device, making it particularly concerning for network infrastructure that may be exposed to external threats. The attack surface is further expanded by the fact that legitimate administrative users may need to configure these VPN parameters, increasing the likelihood of successful exploitation through both malicious actors and potentially compromised administrative accounts.
Mitigation strategies for CVE-2022-41019 should focus on immediate firmware updates from Siretta, as the vendor has likely released patches addressing the specific buffer overflow conditions. Network segmentation and access control measures should be implemented to limit exposure of the affected device to untrusted networks, particularly restricting access to the VPN configuration interfaces. The principle of least privilege should be enforced by ensuring that only authorized administrative users have access to the vpn l2tp advanced command processing functionality, and that all administrative access is properly authenticated and logged. Input validation should be strengthened at multiple layers including network device configuration interfaces, where all user-supplied data is checked against expected parameter ranges and lengths before processing. Network monitoring and intrusion detection systems should be configured to detect anomalous patterns in VPN configuration requests that might indicate exploitation attempts, particularly focusing on unusual parameter combinations or values outside normal operational ranges. The vulnerability aligns with ATT&CK technique T1203, which describes exploitation of software vulnerabilities for privilege escalation and persistent access, and represents a clear example of how insecure command parsing can create persistent backdoors within network infrastructure. Organizations should also implement regular vulnerability assessments and penetration testing to identify similar conditions in other network infrastructure components, as this type of buffer overflow vulnerability is commonly found in embedded systems and network devices that process user input without adequate sanitization.