CVE-2026-116234 in Pugongying X5 Pro
Summary
by MITRE • 10/26/2026
A vulnerability was detected in Oray Pugongying X5 Pro 7.6.1. Affected is an unknown function of the file /etc/ipsec.conf of the component IPsec Policy Handler. The manipulation of the argument secproto results in crlf injection. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Analysis
by VulDB Data Team • 10/26/2026
The vulnerability identified in Oray Pugongying X5 Pro version 7.6.1 represents a significant security risk stemming from improper input validation within the IPsec Policy Handler component. Specifically, the flaw resides in an unknown function associated with the configuration file /etc/ipsec.conf, which is critical for establishing secure network tunnels using Internet Protocol Security protocols. The core technical issue involves the manipulation of the secproto argument, where insufficient sanitization allows for Carriage Return and Line Feed (CRLF) injection attacks. This type of vulnerability occurs when user-controllable input containing special characters such as carriage returns and line feeds is incorporated into HTTP headers or configuration files without proper encoding or validation, allowing an attacker to inject additional data that the application interprets as part of its structure rather than mere content.
From a technical perspective, CRLF injection in this context likely enables an attacker to manipulate how the IPsec policy handler processes configuration directives. By injecting newline characters, it may be possible to append unauthorized commands or alter existing security policies defined within the ipsec.conf file. This could lead to the bypass of authentication mechanisms, the establishment of unintended secure connections, or the disruption of legitimate traffic by corrupting the integrity of the cryptographic parameters negotiated during tunnel setup. The presence of this flaw indicates a fundamental failure in implementing strict input validation standards for configuration files that directly influence network security posture and encryption settings.
The operational impact of this vulnerability is severe due to its remote exploitability. Since the attack can be launched remotely, an adversary does not need physical access or prior authentication to target the device, provided they have network connectivity to the affected service port handling these configurations. The fact that a public exploit exists significantly lowers the barrier for entry, enabling both sophisticated attackers and less skilled individuals to compromise the system. Successful exploitation could result in unauthorized access to protected networks, interception of sensitive data transmitted through IPsec tunnels, or complete denial of service by breaking established secure connections. This poses a direct threat to confidentiality, integrity, and availability within any environment relying on this device for secure communications.
In terms of industry classification, this vulnerability aligns with CWE-93, which describes Improper Neutralization of CRLF Sequences in HTTP Headers resulting in CRLF Injection. Although the specific vector here involves configuration file manipulation rather than direct HTTP header injection, the underlying mechanism and potential consequences are analogous, involving the insertion of control characters to alter program flow or data interpretation. Furthermore, from a tactical standpoint related to MITRE ATT&CK frameworks, this vulnerability facilitates initial access and potentially privilege escalation if the compromised service runs with elevated privileges. It also supports lateral movement by allowing attackers to manipulate network security policies, thereby undermining the defensive perimeter established by IPsec configurations.
Mitigation strategies must address both immediate remediation and long-term architectural improvements. Given that the vendor has not responded to disclosure efforts, users should consider isolating affected devices from untrusted networks until a patch is available or replacing them with secure alternatives. If isolation is not feasible, implementing strict network access controls such as firewalls restricting inbound traffic to only necessary ports can reduce exposure. Additionally, administrators should review current IPsec configurations for any signs of tampering and ensure that configuration files are protected against unauthorized writes through file system permissions. Future development practices must enforce rigorous input validation and output encoding protocols to prevent CRLF injection across all components handling user-supplied data or external inputs.