CVE-2019-5164 : Exploit Details and Defense Strategies
Learn about CVE-2019-5164, a code execution vulnerability in Shadowsocks-libev 3.3.2 allowing attackers to execute arbitrary binaries via crafted network packets, leading to privilege escalation. Find mitigation steps and long-term security practices.
A vulnerability in the ss-manager binary of Shadowsocks-libev 3.3.2 allows for code execution through specially crafted network packets, leading to privilege escalation.
Understanding CVE-2019-5164
This CVE involves a code execution vulnerability in Shadowsocks-libev 3.3.2, posing a high risk due to the potential for arbitrary binary execution.
What is CVE-2019-5164?
The vulnerability in the ss-manager binary of Shadowsocks-libev 3.3.2 enables attackers to execute arbitrary binaries by sending crafted network packets, resulting in code execution and privilege escalation.
The Impact of CVE-2019-5164
- CVSS Base Score: 7.8 (High Severity)
- Attack Vector: Local
- Attack Complexity: Low
- Privileges Required: Low
- Confidentiality Impact: High
- Integrity Impact: High
- Availability Impact: High
Technical Details of CVE-2019-5164
This section delves into the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability allows attackers to trigger code execution and privilege escalation by exploiting the ss-manager binary in Shadowsocks-libev 3.3.2 through specially crafted network packets.
Affected Systems and Versions
- Affected Product: Shadowsocks
- Affected Version: Shadowsocks-libev 3.3.2
Exploitation Mechanism
Attackers can exploit this vulnerability by sending malicious network packets to the ss-manager binary, triggering the execution of arbitrary binaries.
Mitigation and Prevention
Protecting systems from CVE-2019-5164 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Update Shadowsocks-libev to a patched version.
- Implement network monitoring to detect suspicious activities.
- Restrict network access to critical systems.
Long-Term Security Practices
- Regularly update software and apply security patches.
- Conduct security audits to identify and mitigate vulnerabilities.
- Educate users on safe network practices.
Patching and Updates
Ensure timely installation of security patches and updates to mitigate the risk of exploitation.