A vulnerability was found in TOTOLINK X18 9.1.0cu.2024_B20220329. It has been rated as critical. This issue affects the function setL2tpdConfig of the file /cgi-bin/cstecgi.cgi. The manipulation of the argument enable leads to OS command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Risk to organizations includes potential unauthorized access to the system, which may lead to further exploitation and data compromise. The severity of this vulnerability necessitates immediate attention from security teams.
Organizations should prioritize patching immediately.
The current exploitability metrics indicate that the vulnerability is medium in terms of exploitability. Organizations using affected versions should check for updates or patches from TOTOLINK.
The CVSS score of 5.3 reflects the medium severity of this vulnerability, emphasizing the need for organizations to address it in their patching cycles.
Security teams should stay informed about the latest developments regarding this vulnerability and ensure they have appropriate measures in place.
Vulnerability Details
A vulnerability was found in TOTOLINK X18 9.1.0cu.2024_B20220329. This issue affects the function setL2tpdConfig of the file /cgi-bin/cstecgi.cgi. The CVSS score is 5.3, indicating medium severity, which is a result of the low attack complexity and the requirement of low privileges for exploitation.
The vulnerability allows for OS command injection, and the attack vector is network-based. The vendor has been informed about this vulnerability but has not provided a response.
The publication date of this vulnerability is February 16, 2025, with a last modified date of March 10, 2025.
Technical Analysis
The root cause of this vulnerability lies in the improper handling of input parameters, allowing attackers to inject system commands through the enable argument in the setL2tpdConfig function.
The attack vector is network-based, requiring low complexity and low privileges. No user interaction is necessary for exploitation, which increases the risk of this vulnerability in real-world deployments.
The confidentiality, integrity, and availability impacts are rated low, meaning that while the attack may not significantly compromise data, it can still lead to unauthorized access and potential further exploitation.
Risk & Impact Analysis
The risk involved with this vulnerability includes unauthorized access and control over affected devices. Given that the exploit may be initiated remotely, the potential blast radius could be significant if multiple devices are affected.
Organizations should assess the urgency of addressing this vulnerability based on the CVSS score of 5.3 and the known exploit availability. The exploit has been disclosed to the public, which signals an increased risk.
Organizations should address in priority patch cycle to mitigate potential risks effectively.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version is TOTOLINK X18 firmware version 9.1.0cu.2024_B20220329. All versions prior to vendor patch are vulnerable.
Mitigation & Remediation
Organizations should apply the available patch from the vendor to remediate this vulnerability. If a patch is unavailable, organizations should consider implementing workarounds and configuration hardening to mitigate risks.
Monitoring for unusual activity on affected systems is recommended, and organizations can validate remediation through penetration testing to ensure that similar vulnerabilities are not present.
Detection Guidance
Organizations should monitor logs for indicators of exploitation attempts, including unusual commands executed through the setL2tpdConfig function. Behavioral anomalies in system performance may also indicate unauthorized access.
AppSecure Threat Intelligence Insight
This vulnerability highlights the ongoing challenges in securing network devices. Security teams should consider implementing robust input validation and sanitization measures to prevent command injection vulnerabilities. Regular security assessments can help identify and remediate similar weaknesses.
Additionally, organizations can benefit from understanding common vulnerabilities in network devices. For extensive insights, refer to the vulnerability management program and consider how they can be applied to their own systems.
For organizations utilizing cloud technologies, following best practices for security and compliance is critical. The insights from the cloud security assessment guide can be particularly beneficial.
Continuous monitoring and regular security testing are essential to maintaining a secure environment.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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