CVE-2018-7183 : Security Advisory and Response
Discover the buffer overflow vulnerability in the decodearr function of ntpq in NTP versions 4.2.8p6 through 4.2.8p10, allowing remote attackers to execute arbitrary code. Learn about the impact, affected systems, and mitigation steps.
A vulnerability involving buffer overflow has been discovered in the decodearr function of ntpq in ntp versions 4.2.8p6 through 4.2.8p10. This flaw can be exploited by remote attackers to execute arbitrary code. The attack is carried out by manipulating an ntpq query and sending a specifically crafted array in the response.
Understanding CVE-2018-7183
This CVE involves a buffer overflow vulnerability in the decodearr function of ntpq in specific versions of the NTP software.
What is CVE-2018-7183?
The vulnerability allows remote attackers to execute arbitrary code by exploiting the buffer overflow in the ntpq function of NTP versions 4.2.8p6 through 4.2.8p10.
The Impact of CVE-2018-7183
The exploitation of this vulnerability can lead to the execution of arbitrary code by remote attackers, potentially compromising the affected systems.
Technical Details of CVE-2018-7183
This section provides detailed technical information about the CVE.
Vulnerability Description
The buffer overflow in the decodearr function of ntpq in NTP versions 4.2.8p6 through 4.2.8p10 allows remote attackers to execute arbitrary code by manipulating an ntpq query and sending a response with a crafted array.
Affected Systems and Versions
- Product: NTP
- Vendor: N/A
- Versions affected: 4.2.8p6 through 4.2.8p10
Exploitation Mechanism
The vulnerability is exploited by remote attackers manipulating an ntpq query and sending a specifically crafted array in the response.
Mitigation and Prevention
Protecting systems from CVE-2018-7183 requires immediate actions and long-term security practices.
Immediate Steps to Take
- Apply security patches provided by the NTP vendor promptly.
- Monitor network traffic for any suspicious activity related to NTP queries.
- Implement network segmentation to limit the impact of potential attacks.
Long-Term Security Practices
- Regularly update and patch all software and systems to prevent known vulnerabilities.
- Conduct regular security assessments and penetration testing to identify and address potential weaknesses.
- Educate users and administrators about safe practices to mitigate security risks.
Patching and Updates
Ensure that all affected systems are updated with the latest patches and security updates to mitigate the risk of exploitation.