Home/CVE/A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker with administrator crede
CVE

CVE-2019-1783

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker with administrator crede

A vulnerability in the CLI of Cisco NX-OS Software could allow an authenticated, local attacker with administrator credentials to execute arbitrary commands on the underlying Linux operating system with the privilege level of root. The vulnerability is due to insufficient validation of arguments passed to a specific CLI command on the affected device. An attacker could exploit this vulnerability by including malicious input as the argument of an affected command.

A successful exploit could allow the attacker to execute arbitrary commands on the underlying Linux operating system with elevated privileges. An attacker would need valid administrator credentials to exploit this vulnerability.

MEDIUM · CVSS 6.7 EPSS 0.00079
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0

Affected Products & Versions

3
cisco nx-os< 7.3\(4\)n1\(1\)
cisco nx-os>= 7.2 and < 7.3\(3\)d1\(1\)
cisco nx-os>= 8.0 and < 8.3\(1\)

Scoring & Timeline

6.7
MEDIUM · CVSS v3.1 · psirt@cisco.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD15 May 2019 · 08:29 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

13
cisco-csafcisco-sa-20190515-nxos-cmdinj-1735
cisco-csafcisco-sa-20190515-nxos-cmd-inject-1784
cisco-csafcisco-sa-20190515-nxos-cmdinj-1783
cisco-csafcisco-sa-20190515-nxos-cmdinj-1776
cisco-csafcisco-sa-20190515-nxos-linecardinj-1769
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://www.securityfocus.com/bid/108370Third Party AdvisoryVDB Entry
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