SB2020110544 - Packet Filtering Bypass in Cisco SD-WAN Software
Published: November 5, 2020
Security Bulletin ID
SB2020110544
Severity
Medium
Patch available
NO
Number of vulnerabilities
1
Exploitation vector
Remote access
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-2020-3444)
The vulnerability allows a remote attacker to bypass L3 and L4 traffic filters.
The vulnerability exists due to improper traffic filtering conditions on an affected device. A remote attacker can send a specially crafted TCP packet, bypass the L3 and L4 traffic filters and inject an arbitrary packet into the network.
Remediation
Cybersecurity Help is not aware of any official remediation provided by the vendor.