PT-2020-3775 · Cisco · Cisco Nx-Os+1

Published 2020-08-26 · Updated 2020-09-04 · CVE-2020-3454

Positive Technologies (AI Summary)

CVSS v2.0

9.0

High

Base vector

AV:N/AC:L/Au:S/C:C/I:C/A:C

Name of the Vulnerable Software and Affected Versions: Cisco NX-OS Software (affected versions not specified)

Description: A vulnerability in the Call Home feature of Cisco NX-OS Software could allow an authenticated, remote attacker to inject arbitrary commands that could be executed with root privileges on the underlying operating system (OS). The vulnerability is due to insufficient input validation of specific Call Home configuration parameters when the software is configured for transport method HTTP. An attacker could exploit this vulnerability by modifying parameters within the Call Home configuration on an affected device. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the underlying OS.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

OS Command Injection

RCE

Weakness Enumeration

CWE-78

CWE-20

Related Identifiers

BDU:2020-04135

CVE-2020-3454

Affected Products

Cisco Nx-Os

Cisco Nexus

References · 4

• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-callhome-cmdinj-zkxzSCY · Vendor Advisory
• https://bdu.fstec.ru/vul/2020-04135 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-callhome-cmdinj-zkxzSCY · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-3454 · Security Note