CVE-2022-40996 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 'no firmwall srcmac (WORD|null) srcip (A.B.C.D|null) dstip (A.B.C.D|null) protocol (none|tcp|udp|icmp) srcport (<1-65535>|null) dstport (<1-65535>|null) policy (drop|accept) description (WORD|null)' command template.
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Analysis
by VulDB Data Team • 11/05/2025
The CVE-2022-40996 vulnerability represents a critical stack-based buffer overflow flaw within the DetranCLI command parsing subsystem of Siretta QUARTZ-GOLD G5.0.1.5-210720-141020 network security device. This vulnerability resides in the command-line interface functionality that processes network filtering rules, specifically targeting the parsing of firewall configuration commands that define source and destination IP addresses, port numbers, protocols, and policy actions. The flaw manifests when the system processes crafted network packets containing malformed command parameters that exceed the allocated stack buffer space, creating opportunities for memory corruption and unauthorized code execution.
The technical implementation of this vulnerability stems from inadequate input validation and bounds checking within the DetranCLI parsing function. The command template structure includes multiple parameters such as source MAC address, source IP, destination IP, protocol type, source port, destination port, policy action, and description fields, each with specific data type constraints. When attackers craft malicious packets containing oversized values for any of these parameters, particularly the WORD or A.B.C.D formatted fields, the system fails to properly validate buffer boundaries before copying data into fixed-size stack buffers. This classic buffer overflow condition allows attackers to overwrite adjacent stack memory locations, potentially corrupting return addresses and control flow information.
The operational impact of this vulnerability extends beyond simple privilege escalation to encompass full system compromise and unauthorized network access control manipulation. An attacker who successfully exploits this vulnerability can execute arbitrary commands with the privileges of the DetranCLI process, typically running with elevated system permissions. This capability enables attackers to modify firewall rules, bypass network security controls, establish persistent backdoors, and potentially gain access to sensitive network resources. The vulnerability's network-based attack vector means that exploitation can occur without physical access to the device, making it particularly dangerous in environments where network security appliances are exposed to untrusted networks.
Mitigation strategies for CVE-2022-40996 should focus on immediate firmware updates from Siretta, which would contain patches addressing the buffer overflow conditions in the DetranCLI parsing functions. Network administrators should implement strict input validation at network boundaries, utilizing intrusion detection systems to monitor for suspicious command sequences that might indicate exploitation attempts. The vulnerability aligns with CWE-121 Stack-based Buffer Overflow, which is categorized under the broader category of CWE-787 Out-of-bounds Write, and represents a typical attack pattern documented in MITRE ATT&CK framework under T1059 Command and Scripting Interpreter. Organizations should also consider network segmentation to limit the potential impact of successful exploitation and implement monitoring for unusual command execution patterns within firewall management interfaces. The vulnerability demonstrates the importance of proper input validation in network security appliances and highlights the need for comprehensive security testing of command parsing functionality in embedded systems.