CVE-2023-24129 in Jensen 1200AC
Summary
by MITRE • 03/01/2023
Jensen of Scandinavia Eagle 1200AC V15.03.06.33_en was discovered to contain a stack overflow via the wepkey4 parameter at /goform/WifiBasicSet.
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Analysis
by VulDB Data Team • 10/19/2025
The vulnerability identified as CVE-2023-24129 affects the Jensen of Scandinavia Eagle 1200AC V15.03.06.33_en wireless access point device, representing a critical stack overflow condition that can be exploited through the web interface. This particular device operates within the consumer and small office networking segment, where robust security measures are essential to prevent unauthorized access to network infrastructure. The vulnerability manifests within the web form handler at the specific endpoint /goform/WifiBasicSet, which processes wireless configuration parameters including the wepkey4 parameter that serves as the attack vector.
The technical flaw stems from inadequate input validation within the device's web application framework where the wepkey4 parameter fails to properly sanitize or limit the length of user-supplied data. When an attacker submits a malformed or excessively long string through this parameter, the device's memory management routines fail to handle the oversized input appropriately, leading to a stack buffer overflow condition. This memory corruption vulnerability occurs because the application allocates a fixed-size buffer on the stack to store the wepkey4 parameter value without sufficient bounds checking, allowing malicious input to overwrite adjacent memory locations including return addresses and control data.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as it creates potential for remote code execution and complete system compromise. An attacker exploiting this vulnerability could gain unauthorized access to the device's administrative interface, potentially enabling them to modify wireless network settings, inject malicious configuration parameters, or even execute arbitrary code on the device. The attack surface is particularly concerning given that this is a wireless access point device that typically operates in unsecured environments where physical access may be limited, making remote exploitation more feasible. Network administrators face significant risks including unauthorized network access, data interception, and potential use as a pivot point for attacking internal network resources.
Mitigation strategies for CVE-2023-24129 should prioritize immediate firmware updates from the vendor, as this vulnerability represents a critical security flaw that requires official patches to address the underlying buffer overflow condition. Network segmentation and access control measures should be implemented to limit exposure, including restricting administrative access to the device through firewall rules and implementing network access control lists that prevent unauthorized users from reaching the vulnerable web interface. The vulnerability aligns with CWE-121 Stack-based Buffer Overflow, which is classified under the Common Weakness Enumeration framework as a fundamental memory safety issue. From an adversary perspective, this vulnerability could map to ATT&CK technique T1210 Exploitation of Remote Services, where attackers leverage unpatched web application vulnerabilities to gain system access. Organizations should also implement network monitoring to detect unusual traffic patterns that might indicate exploitation attempts and establish regular security assessments to identify similar vulnerabilities in other network infrastructure components. The device manufacturer should be contacted to verify if additional mitigations or workarounds are available while awaiting official security patches that properly address the input validation deficiencies in the web form handler.