CVE-2020-3404: Cisco IOS XE Software Consent Token Bypass Vulnerability
A vulnerability in the persistent Telnet/Secure Shell (SSH) CLI of Cisco IOS XE Software could allow an authenticated, local attacker to gain shell access on an affected device and execute commands on the underlying operating system (OS) with root privileges. The vulnerability is due to insufficient enforcement of the consent token in authorizing shell access. An attacker could exploit this vulnerability by authenticating to the persistent Telnet/SSH CLI on an affected device and requesting shell access. A successful exploit could allow the attacker to gain shell access on the affected device and execute commands on the underlying OS with root privileges.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2020-3404?
CVE-2020-3404 has been classified with a high severity rating due to its potential to allow authenticated attackers to execute commands with root privileges on affected devices.
How do I fix CVE-2020-3404?
To fix CVE-2020-3404, it is recommended to update your Cisco IOS XE software to the latest version that addresses this vulnerability.
Which Cisco devices are affected by CVE-2020-3404?
CVE-2020-3404 primarily affects Cisco IOS XE Software version 16.11.1.
Can CVE-2020-3404 be exploited remotely?
No, CVE-2020-3404 requires authenticated local access, meaning an attacker must have local access to the device to exploit the vulnerability.
What are the potential impacts of CVE-2020-3404?
The potential impacts of CVE-2020-3404 include unauthorized access to the underlying operating system and execution of arbitrary commands with elevated privileges.