Information disclosure in Cisco IOS XE and Cisco IOS - CVE-2020-3477

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Main Vulnerability Database Vulnerabilities #VU47236

Information disclosure in Cisco IOS XE and Cisco IOS - CVE-2020-3477

Published: September 24, 2020 / Updated: October 1, 2020


Vulnerability identifier: #VU47236
CSH Severity: Low
CVSS v4: 6.8 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2020-3477
CWE-ID: CWE-200
Exploitation vector: Local access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to insufficient application of restrictions during the execution of a specific command in the CLI parser. A local user can gain unauthorized access to sensitive information on the system.


Affected software

Cisco IOS XE
Cisco IOS

How to mitigate CVE-2020-3477

Install updates from vendor's website.

Cisco IOS XE - addressed in versions 17.2.1, 17.2.1EFT, 17.2.1a, 17.2.2, 17.3.1, 17.3.1EFT, 17.3.1a, 17.3.2EFT
Cisco IOS - addressed in versions 17.2.1, 17.2.1EFT, 17.2.2, 17.3.1, 17.3.1EFT, 17.3.1a, 17.3.2EFT

External References

Related Security Bulletins