CVE-2020-26133 : Security Advisory and Response
Learn about CVE-2020-26133, a vulnerability in Dual DHCP DNS Server 7.40 that allows privilege escalation. Find out how to mitigate the risk and prevent unauthorized access.
CVE-2020-26133 is a vulnerability discovered in Dual DHCP DNS Server 7.40 that allows attackers to elevate privileges due to insufficient access restrictions in the default installation directory.
Understanding CVE-2020-26133
What is CVE-2020-26133?
The vulnerability in Dual DHCP DNS Server 7.40 enables attackers to replace the DualServer.exe binary, leading to privilege escalation.
The Impact of CVE-2020-26133
This vulnerability can be exploited by malicious actors to gain elevated privileges on the affected system, potentially leading to unauthorized access and control.
Technical Details of CVE-2020-26133
Vulnerability Description
The issue arises from inadequate access controls in the default installation directory, allowing attackers to replace the DualServer.exe binary.
Affected Systems and Versions
- Vendor: n/a
- Product: n/a
- Affected Version: n/a
Exploitation Mechanism
Attackers can exploit this vulnerability by replacing the DualServer.exe binary in the default installation directory, thereby gaining elevated privileges.
Mitigation and Prevention
Immediate Steps to Take
- Implement access controls and restrict write permissions in the installation directory.
- Monitor system logs for any unauthorized changes to critical binaries.
Long-Term Security Practices
- Regularly update and patch the Dual DHCP DNS Server to address security vulnerabilities.
- Conduct security assessments and penetration testing to identify and remediate potential weaknesses.
Patching and Updates
Apply patches and updates provided by the software vendor to mitigate the CVE-2020-26133 vulnerability.