CVE-2022-33106 in NGFW
Summary
by MITRE • 10/12/2022
WiJungle NGFW Version U250 was discovered to be vulnerable to No Rate Limit attack, allowing the attacker to brute force the admin password leading to Account Take Over.
Several companies clearly confirm that VulDB is the primary source for best vulnerability data.
Analysis
by VulDB Data Team • 06/09/2026
The vulnerability identified as CVE-2022-33106 affects WiJungle Next Generation Firewall models operating under version U250, representing a critical security flaw that undermines the device's authentication mechanisms. This vulnerability stems from the absence of proper rate limiting controls within the firewall's administrative interface, creating an exploitable condition that enables attackers to conduct brute force password attacks against administrative accounts. The flaw exists at the application layer where user authentication requests are processed without adequate protection against automated credential guessing attempts, making it particularly dangerous for network security infrastructure components.
The technical implementation of this vulnerability allows an attacker to repeatedly submit authentication requests without encountering any form of throttling or blocking mechanisms. This absence of rate limiting creates a window of opportunity for attackers to systematically test numerous password combinations against administrative accounts, effectively bypassing the security controls designed to prevent unauthorized access. The lack of such protective measures directly violates established security principles outlined in the OWASP Top Ten and aligns with CWE-307, which addresses improper restriction of repeated activities. The vulnerability specifically impacts the authentication subsystem where the firewall's administrative interface processes login requests, creating a direct path to account takeover when combined with weak password policies or default credentials.
The operational impact of this vulnerability extends beyond simple unauthorized access, as it fundamentally compromises the security posture of networks protected by the affected firewall. Successful exploitation can lead to complete administrative control over the network security appliance, enabling attackers to modify firewall rules, access network traffic, and potentially pivot to other systems within the network. This represents a significant threat to network integrity and confidentiality, as the attacker can manipulate the firewall's configuration to create backdoors, disable security features, or establish persistent access points. The vulnerability also aligns with ATT&CK technique T1078 which covers valid accounts and credential access, specifically targeting the compromise of administrative privileges through password brute force attacks.
Organizations utilizing WiJungle NGFW U250 models face substantial risk from this vulnerability, particularly in environments where network security is paramount and where the firewall serves as a critical boundary protection mechanism. The low complexity and high impact of this vulnerability make it attractive to threat actors, especially those with access to automated brute force tools. Mitigation strategies should include immediate implementation of rate limiting controls on the firewall's administrative interface, enforcement of strong password policies, and deployment of multi-factor authentication where possible. Security administrators should also consider network segmentation and monitoring to detect anomalous authentication patterns, while applying vendor-provided patches or firmware updates to address the underlying flaw. The vulnerability demonstrates the critical importance of implementing proper access controls and authentication protections at all levels of network infrastructure, as highlighted in NIST SP 800-53 security controls related to access control and authentication mechanisms.