CVE-2020-16143 : Security Advisory and Response
Learn about CVE-2020-16143 affecting Seafile-client 7.0.8. Understand the impact, affected systems, exploitation mechanism, and mitigation steps for this DLL hijacking vulnerability.
Seafile-client 7.0.8 for Seafile is vulnerable to DLL hijacking due to loading exchndl.dll from the current working directory.
Understanding CVE-2020-16143
Seafile-client 7.0.8 for Seafile is susceptible to a DLL hijacking vulnerability, potentially allowing malicious actors to execute arbitrary code.
What is CVE-2020-16143?
The vulnerability in Seafile-client 7.0.8 arises from the insecure loading of exchndl.dll from the current working directory, enabling attackers to exploit this behavior for DLL hijacking attacks.
The Impact of CVE-2020-16143
This vulnerability could be exploited by attackers to execute arbitrary code on the affected system, leading to potential unauthorized access, data theft, or system compromise.
Technical Details of CVE-2020-16143
Seafile-client 7.0.8 for Seafile is vulnerable to DLL hijacking, posing a significant security risk.
Vulnerability Description
Seafile-client 7.0.8 loads exchndl.dll from the current working directory, which can be exploited by attackers for DLL hijacking attacks.
Affected Systems and Versions
- Product: Seafile-client 7.0.8
- Vendor: Seafile
- Versions: All versions are affected
Exploitation Mechanism
Attackers can place a malicious exchndl.dll in the working directory, tricking the application into loading the malicious DLL instead of the legitimate one, leading to arbitrary code execution.
Mitigation and Prevention
Immediate action is necessary to mitigate the risks posed by CVE-2020-16143.
Immediate Steps to Take
- Avoid running Seafile-client from directories where untrusted files are present.
- Regularly update Seafile-client to the latest version to patch the vulnerability.
Long-Term Security Practices
- Implement secure coding practices to prevent DLL hijacking vulnerabilities.
- Conduct regular security assessments and audits to identify and address similar vulnerabilities.
Patching and Updates
- Apply patches and updates provided by Seafile promptly to address the DLL hijacking vulnerability and enhance the security of the application.