National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2018-0477 Detail

Current Description

A vulnerability in the CLI parser of Cisco IOS XE Software could allow an authenticated, local attacker to execute commands on the underlying Linux shell of an affected device with root privileges. The vulnerability exist because the affected software improperly sanitizes command arguments, failing to prevent access to certain internal data structures on an affected device. An attacker who has privileged EXEC mode (privilege level 15) access to an affected device could exploit these vulnerabilities on the device by executing CLI commands that contain custom arguments. A successful exploit could allow the attacker to execute arbitrary commands with root privileges on the affected device.

Source:  MITRE
View Analysis Description

Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score: 6.7 MEDIUM
Vector:  CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.securitytracker.com/id/1041737 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180926-iosxe-cmdinj Vendor Advisory

Weakness Enumeration

CWE-ID CWE Name Source
CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection') NIST   Cisco Systems, Inc.  

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:o:cisco:ios_xe:15.3\(3\)s3.16:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ios_xe:16.7\(1\):*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

4 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2018-0477
NVD Published Date:
10/05/2018
NVD Last Modified:
10/09/2019