CVE-2023-37719 : Exploit Details and Defense Strategies
Learn about CVE-2023-37719, a stack overflow flaw in Tenda F1202 & FH1202 routers allowing arbitrary code execution. Find mitigation steps and update guidance.
Tenda F1202 V1.0BR_V1.2.0.20(408), FH1202_V1.2.0.19_EN were discovered to contain a stack overflow in the page parameter in the function fromP2pListFilter.
Understanding CVE-2023-37719
This CVE refers to a stack overflow vulnerability found in Tenda F1202 and FH1202 routers.
What is CVE-2023-37719?
The CVE-2023-37719 vulnerability pertains to a stack overflow issue present in specific firmware versions of Tenda F1202 and FH1202 routers, affecting the page parameter within the fromP2pListFilter function.
The Impact of CVE-2023-37719
Exploitation of this vulnerability could potentially allow remote attackers to execute arbitrary code or cause a denial of service (DoS) condition on the affected devices, compromising the security and functionality of the routers.
Technical Details of CVE-2023-37719
This section delves deeper into the technical aspects of the CVE.
Vulnerability Description
The vulnerability arises due to a lack of proper input validation on the page parameter, leading to a stack overflow condition that could be abused by malicious actors.
Affected Systems and Versions
The affected systems include Tenda F1202 V1.0BR_V1.2.0.20(408) and FH1202_V1.2.0.19_EN routers running the respective firmware versions with the identified flaw.
Exploitation Mechanism
Attackers can exploit this vulnerability by sending specially crafted requests to the vulnerable routers, triggering the stack overflow and potentially gaining unauthorized access or disrupting the device's operations.
Mitigation and Prevention
It is crucial to take immediate action to address and prevent exploits related to CVE-2023-37719.
Immediate Steps to Take
Users are advised to disconnect the affected routers from the network and apply security patches or updates provided by Tenda to mitigate the vulnerability.
Long-Term Security Practices
Implementing network segmentation, strong firewall rules, and regular security audits can help enhance the overall security posture and prevent similar vulnerabilities in the future.
Patching and Updates
Regularly check for firmware updates from Tenda and ensure timely installation to patch the vulnerability and strengthen the security of the routers.