Input validation error in Cisco IOS XE and Cisco IOS XE SD-WAN - CVE-2020-3444

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Main Vulnerability Database Vulnerabilities #VU48163

Input validation error in Cisco IOS XE and Cisco IOS XE SD-WAN - CVE-2020-3444

Published: November 5, 2020


Vulnerability identifier: #VU48163
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-3444
CWE-ID: CWE-20
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco IOS XE
Cisco IOS XE SD-WAN

Detailed vulnerability description

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. 


How to mitigate CVE-2020-3444

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Sources