CVE-2017-2302 : Vulnerability Insights and Analysis

Juniper Networks products running Junos OS are vulnerable to a denial of service attack due to a BGP add-path feature issue.

Understanding CVE-2017-2302

In this CVE, a network-based attacker can exploit the BGP add-path feature to crash and restart the Junos OS rpd daemon, leading to a prolonged denial of service situation.

What is CVE-2017-2302?

The vulnerability in Juniper Networks products allows attackers to repeatedly crash the rpd daemon, causing a denial of service.

The Impact of CVE-2017-2302

The exploitation of this vulnerability can result in an extended denial of service condition, affecting the availability of the Junos OS.

Technical Details of CVE-2017-2302

Juniper Networks products running specific versions of Junos OS are susceptible to this vulnerability.

Vulnerability Description

The issue arises when the BGP add-path feature is enabled with certain options, allowing attackers to disrupt the rpd daemon.

Affected Systems and Versions

Junos OS versions 12.1X46 to 15.1X49 are affected, with specific releases mentioned in the data.

Exploitation Mechanism

Attackers can exploit the 'send' option or both 'send' and 'receive' options of the BGP add-path feature to trigger the rpd daemon crashes.

Mitigation and Prevention

Steps to address and prevent the CVE-2017-2302 vulnerability.

Immediate Steps to Take

Disable the BGP add-path feature if not essential for operations.
Implement firewall rules to restrict access to vulnerable services.
Monitor network traffic for any suspicious activity.

Long-Term Security Practices

Regularly update Junos OS to patched versions.
Conduct security audits and assessments to identify vulnerabilities.

Patching and Updates

Apply the recommended patches provided by Juniper Networks to mitigate the vulnerability.