CVE-2018-0122: cisco staros Improper Input Validation

Vulnerability summary

CVE-2018-0122 is a medium (CVSS 6.6) Improper Input Validation vulnerability in cisco staros. EPSS estimates a 0.37% chance of exploitation in the next 30 days, higher than 29.7% of scored vulnerabilities.

Timeline

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

Description

A vulnerability in the CLI of the Cisco StarOS operating system for Cisco ASR 5000 Series Aggregation Services Routers could allow an authenticated, local attacker to overwrite system files that are stored in the flash memory of an affected system. The vulnerability is due to insufficient validation of user-supplied input by the affected operating system. An attacker could exploit this vulnerability by injecting crafted command arguments into a vulnerable CLI command for the affected operating system. A successful exploit could allow the attacker to overwrite or modify arbitrary files that are stored in the flash memory of an affected system. To exploit this vulnerability, the attacker would need to authenticate to an affected system by using valid administrator credentials. Cisco Bug IDs: CSCvf93335.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
• 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.