CVE-2018-0221: cisco identity_services_engine OS Command Injection

Vulnerability summary

CVE-2018-0221 is a high (CVSS 7.2) OS Command Injection vulnerability in cisco identity_services_engine. EPSS estimates a 0.82% chance of exploitation in the next 30 days, higher than 56.3% of scored vulnerabilities.

Timeline

1. 08-03-2018
   PublishedVulnerability first disclosed.
2. 02-12-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in specific CLI commands for the Cisco Identity Services Engine (ISE) could allow an authenticated, local attacker to perform command injection to the underlying operating system or cause a hang or disconnect of the user session. The attacker needs valid administrator credentials for the device. The vulnerability is due to incomplete input validation of user input for certain CLI ISE configuration commands. An attacker could exploit this vulnerability by authenticating as an administrative user, issuing a specific CLI command, and entering crafted, malicious user input for the command parameters. An exploit could allow the attacker to perform command injection to the lower-level Linux operating system. It is also possible the attacker could cause the ISE user interface for this management session to hang or disconnect. Cisco Bug IDs: CSCvg95479.

• CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component.