SB2020100729 - MitM attack in Arista EOS
Published: October 7, 2020 Updated: May 17, 2025
Security Bulletin ID
SB2020100729
Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Adjecent network
Highest impact
Data manipulation
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Input validation error (CVE-ID: CVE-2020-17355)
The vulnerability allows a remote attacker to perform a denial of service or MitM attack.
The vulnerability exists due to insufficient validation of DHCPv6 packets. A remote attacker can send specially crafted DHCPv6 packet to the system and force it to install an incorrect route. This can result in a denial of service conditions or a MitM attack.
Remediation
Install update from vendor's website.