Learn about CVE-2023-25116, buffer overflow flaws in Milesight UR32L v32.3.0.5 vtysh_ubus binary allowing arbitrary code execution via HTTP requests.
This CVE record discusses multiple buffer overflow vulnerabilities present in the vtysh_ubus binary of Milesight UR32L v32.3.0.5, which can result in arbitrary code execution through specially crafted HTTP requests.
Understanding CVE-2023-25116
This section delves into the specifics of CVE-2023-25116, shedding light on the vulnerability, its impact, technical details, and mitigation strategies.
What is CVE-2023-25116?
CVE-2023-25116 involves buffer overflow vulnerabilities in the vtysh_ubus binary of Milesight UR32L v32.3.0.5, allowing attackers to execute arbitrary code by sending malicious HTTP requests.
The Impact of CVE-2023-25116
The impact of this vulnerability is severe, as an attacker with high privileges can exploit it to trigger buffer overflows and execute arbitrary code, potentially compromising the confidentiality, integrity, and availability of the affected system.
Technical Details of CVE-2023-25116
This section provides a deeper insight into the technical aspects of CVE-2023-25116, including vulnerability description, affected systems, versions, and exploitation mechanism.
Vulnerability Description
The vulnerability arises from the utilization of an unsafe sprintf pattern in the vtysh_ubus binary of Milesight UR32L v32.3.0.5, specifically within the set_openvpn_client function. Attackers can exploit this flaw by manipulating HTTP requests to trigger buffer overflows.
Affected Systems and Versions
Milesight UR32L v32.3.0.5 is confirmed to be affected by this vulnerability due to the presence of the buffer overflow issues in the vtysh_ubus binary.
Exploitation Mechanism
By crafting malicious HTTP requests and sending them to the vulnerable system, an attacker with high privileges can trigger buffer overflow vulnerabilities in the set_openvpn_client function, leading to arbitrary code execution.
Mitigation and Prevention
In light of the critical nature of CVE-2023-25116, proactive measures must be taken to mitigate risks and enhance the security posture of affected systems.
Immediate Steps to Take
Long-Term Security Practices
Patching and Updates
Stay informed about security advisories from MileSight and promptly apply patches and updates to ensure the timely resolution of known vulnerabilities.