TP-LINK TL-WR840N(ES)_V6.20_180709 was discovered to contain a remote code execution (RCE) vulnerability via the function oal_wan6_setIpAddr. This vulnerability is classified as critical due to its high CVSS score of 9.8, indicating a severe risk to affected devices. Attackers may leverage this vulnerability to execute arbitrary code on the device, potentially leading to complete control over the router.
Risk to organizations includes unauthorized access to sensitive data and disruption of network services. The attack vector is through the network, with low complexity and no privileges required for exploitation. Given the nature of this vulnerability, organizations should prioritize patching immediately.
As of the latest updates, there is known exploit information available, indicating that this vulnerability is actively being discussed within the cybersecurity community. It is vital for organizations using affected TP-LINK devices to address this vulnerability without delay.
The urgency for defenders cannot be overstated, as the exploitation potential of this vulnerability is high, leading to significant risks in both confidentiality and availability.
Vulnerability Details
The vulnerability, identified as CVE-2022-25064, is associated with TP-LINK's TL-WR840N firmware version 6.20_180709. It allows remote code execution via the function oal_wan6_setIpAddr. The CVE was published on February 25, 2022. The primary CWE classification for this issue is CWE-78, which pertains to OS Command Injection.
The CVSS 3.1 score of 9.8 indicates a critical severity, highlighting the potential impact on confidentiality, integrity, and availability, all rated as high.
Technical Analysis
The root cause of this vulnerability lies within the software's handling of IP address inputs. The attack vector is network-based, allowing remote attackers to exploit this flaw without any user interaction required. The attack complexity is classified as low, meaning that even less-skilled attackers could potentially exploit this vulnerability.
No privileges are required for exploitation, further increasing the risk associated with this vulnerability. Successful exploitation could lead to a total compromise of the device, impacting confidentiality, integrity, and availability.
Risk & Impact Analysis
The deployment of vulnerable TP-LINK devices poses a significant risk to organizations. Given the critical nature of this vulnerability, the potential blast radius is considerable, especially in environments where these devices are used for sensitive operations. The high CVSS score indicates that exploit attempts may not be uncommon, raising the urgency for organizations to address this vulnerability promptly.
Organizations should evaluate their use of TP-LINK TL-WR840N devices and assess the possible impacts of a successful exploit. Immediate remediation actions are essential to mitigate risks associated with potential unauthorized access and data breaches.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerable version of the TP-LINK TL-WR840N firmware is 6.20_180709. Organizations using this version should take immediate action to remediate the vulnerability.
Mitigation & Remediation
Organizations should patch their TP-LINK TL-WR840N devices to the latest firmware version immediately to mitigate this vulnerability. If a patch is not available, consider disabling remote management features and implementing network segmentation to limit exposure.
For ongoing security, organizations may also benefit from conducting regular security assessments. For more detailed guidance on improving security posture, refer to resources like penetration testing services that can identify vulnerabilities in networked devices.
Detection Guidance
Organizations should monitor logs for unusual access patterns and unauthorized configuration changes. Behavioral anomalies in network traffic that could indicate exploitation attempts should also be investigated promptly.
AppSecure Threat Intelligence Insight
CVE-2022-25064 represents a significant threat to TP-LINK device users, underscoring the necessity of robust security practices. The critical nature of this vulnerability illustrates the ongoing challenges faced by organizations in managing network security effectively.
To stay ahead of potential exploits, organizations should increase their awareness of vulnerabilities and invest in comprehensive security strategies. Resources such as penetration testing methodologies and regular security assessments can play a crucial role in identifying and mitigating risks.
Furthermore, organizations are encouraged to keep abreast of evolving threats and vulnerabilities through continuous monitoring and participation in threat intelligence sharing initiatives, as these can provide valuable insights into potential risks.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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