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.
Published 2018-02-08 07:29:00
Updated 2020-09-04 17:15:35
View at NVD,   CVE.org
Vulnerability category: Input validation

Exploit prediction scoring system (EPSS) score for CVE-2018-0122

0.05%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 18 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2018-0122

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
6.6
MEDIUM AV:L/AC:L/Au:N/C:N/I:C/A:C
3.9
9.2
NIST
4.4
MEDIUM CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
0.8
3.6
NIST

CWE ids for CVE-2018-0122

  • The 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.
    Assigned by: ykramarz@cisco.com (Secondary)
  • 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.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2018-0122

Products affected by CVE-2018-0122

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