A vulnerability, which was classified as problematic, was found in Telstra Smart Modem Gen 2 up to 20250115. This affects an unknown part of the component HTTP Header Handler. The manipulation of the argument Content-Disposition leads to injection. It is possible to initiate the attack remotely. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability Details
The vulnerability allows an attacker to exploit the HTTP Header Handler of the Telstra Smart Modem Gen 2. The CVSS score of 6.9 signifies a medium severity level, indicating that while the potential impact is significant, the exploit complexity is low and does not require user interaction. The vulnerability has been classified under CWE-74 (Injection) and CWE-707 (Improper Control of Generation of Code).
The vulnerability was published on January 24, 2025, and is currently in a deferred status. The lack of response from the vendor raises concerns regarding the urgency for remediation.
Technical Analysis
The root cause of this vulnerability stems from how the HTTP Header Handler processes the Content-Disposition argument. With low attack complexity and no privileges required, an attacker can leverage this vulnerability over a network without needing user interaction. The potential impacts include low integrity but no confidentiality or availability impact.
Given the characteristics of the attack vector being network-based, organizations must be aware of the potential for remote exploitation. Security teams should monitor for any unusual network activity that could indicate attempts to exploit this vulnerability.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access and manipulation of data, which could lead to further exploitation. The blast radius could affect any system utilizing the Telstra Smart Modem Gen 2, particularly in environments where networked devices are prevalent. Given the current CVSS score, organizations should assess and prioritize remediation efforts accordingly.
Organizations should address this vulnerability in their patch cycle to mitigate the risk of exploitation, especially considering that it has been publicly disclosed without a vendor response.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions prior to vendor patch.
Mitigation & Remediation
Organizations should prioritize patching immediately. Users should check for any available updates from Telstra for the Smart Modem Gen 2 and apply them without delay. In the absence of a patch, consider implementing network controls to limit exposure and monitor traffic for unusual activity.
For more comprehensive security, organizations are encouraged to engage in penetration testing to identify similar weaknesses in their network.
Detection Guidance
Organizations should monitor logs for any unauthorized changes related to HTTP headers. Behavioral anomalies in network traffic patterns may also indicate attempts to exploit this vulnerability. Regular audits of security configurations are recommended.
AppSecure Threat Intelligence Insight
This vulnerability highlights the importance of maintaining communication with vendors regarding security disclosures. The lack of response from Telstra emphasizes the need for proactive measures from security teams. To stay informed about evolving threats, organizations should engage with resources that offer strategic guidance, such as vulnerability management programs and penetration testing methodologies to ensure comprehensive coverage against similar threats.
Additionally, organizations are encouraged to review their API security testing practices to identify potential vulnerabilities in their applications.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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