CVE-2023-50469 in LBT-T300-T310
Summary
by MITRE • 12/15/2023
Shenzhen Libituo Technology Co., Ltd LBT-T300-T310 v2.2.2.6 was discovered to contain a buffer overflow via the ApCliEncrypType parameter at /apply.cgi.
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Analysis
by VulDB Data Team • 01/11/2024
The vulnerability identified as CVE-2023-50469 resides within the Shenzhen Libituo Technology Co., Ltd LBT-T300-T310 wireless access point firmware version 2.2.2.6. This device operates as a network infrastructure component that manages wireless connectivity and encryption settings through its web-based management interface. The specific flaw manifests in the /apply.cgi script which processes configuration parameters submitted by users through the web interface. The ApCliEncrypType parameter serves as the entry point for exploitation, where inadequate input validation allows malicious actors to supply oversized data payloads that exceed the allocated buffer space.
This buffer overflow vulnerability represents a critical security weakness classified under CWE-121 as stack-based buffer overflow, where the application fails to properly validate the length of input data before copying it into a fixed-size buffer. The affected parameter ApCliEncrypType controls the encryption type settings for the access point's client interface, making it a prime target for attackers seeking to manipulate wireless security configurations. The vulnerability occurs during the processing of user-supplied parameters within the apply.cgi script, which handles configuration changes for the device's wireless client functionality.
The operational impact of this vulnerability extends beyond simple denial of service scenarios. An attacker who successfully exploits this buffer overflow could potentially execute arbitrary code on the affected device with the privileges of the web server process. This remote code execution capability would allow adversaries to gain full control over the wireless access point, enabling them to modify network configurations, intercept wireless traffic, establish persistent backdoors, or use the device as a pivot point for attacking other systems within the network. The attack surface is particularly concerning given that the vulnerability affects a network infrastructure device that typically operates with elevated privileges and has direct access to network traffic.
Mitigation strategies for this vulnerability should prioritize immediate firmware updates from the vendor, as the root cause lies within the device's software implementation rather than network configuration. Network administrators should also implement additional security controls including network segmentation to limit the potential impact of exploitation, monitoring for unusual traffic patterns that might indicate exploitation attempts, and restricting access to the device's management interface to trusted networks only. The vulnerability aligns with ATT&CK technique T1059.007 for command and script interpreter, as successful exploitation would enable attackers to execute commands on the compromised device. Organizations should also consider implementing intrusion detection systems that can identify patterns associated with buffer overflow exploitation attempts and maintain comprehensive network monitoring to detect unauthorized configuration changes to wireless access points.