5.7
MEDIUM
CVE-2017-12339
"Cisco NX-OS CLI Command Injection Vulnerability"
Description

A vulnerability in the CLI of Cisco NX-OS System Software could allow an authenticated, local attacker to perform a command injection attack. The vulnerability is due to insufficient input validation of command arguments to the CLI parser. An attacker could exploit this vulnerability by injecting crafted command arguments into a vulnerable CLI command. An exploit could allow the attacker to execute arbitrary commands at the user's privilege level. On products that support multiple virtual device contexts (VDCs), this vulnerability could allow the attacker to execute commands at the user's privilege level outside the user's environment. This vulnerability affects the following products running Cisco NX-OS System Software: Multilayer Director Switches, Nexus 2000 Series Fabric Extenders, Nexus 3000 Series Switches, Nexus 5000 Series Switches, Nexus 5500 Platform Switches, Nexus 5600 Platform Switches, Nexus 6000 Series Switches, Nexus 7000 Series Switches, Nexus 7700 Series Switches, Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode, Nexus 9000 Series Switches in standalone NX-OS mode, and Nexus 9500 R-Series Line Cards and Fabric Modules. Cisco Bug IDs: CSCve99925, CSCvf15164, CSCvf15167, CSCvf15170, CSCvf15173.

INFO

Published Date :

Nov. 30, 2017, 9:29 a.m.

Last Modified :

Dec. 17, 2017, 2:29 a.m.

Remotely Exploitable :

No

Impact Score :

3.7

Exploitability Score :

1.5
Affected Products

The following products are affected by CVE-2017-12339 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Cisco nx-os
2 Cisco lan_switch_software
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2017-12339.

URL Resource
http://www.securityfocus.com/bid/102198
http://www.securitytracker.com/id/1039938 Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos7 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2017-12339 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2017-12339 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Oct. 09, 2019

    Action Type Old Value New Value
    Added CWE Cisco Systems, Inc. CWE-77
  • CVE Modified by [email protected]

    Dec. 17, 2017

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/102198 [No Types Assigned]
  • Initial Analysis by [email protected]

    Dec. 07, 2017

    Action Type Old Value New Value
    Added CVSS V2 (AV:L/AC:L/Au:N/C:P/I:P/A:P)
    Added CVSS V3 AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L
    Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos7 No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos7 Vendor Advisory
    Changed Reference Type http://www.securitytracker.com/id/1039938 No Types Assigned http://www.securitytracker.com/id/1039938 Third Party Advisory, VDB Entry
    Added CWE CWE-77
    Added CPE Configuration OR *cpe:2.3:o:cisco:nx-os:7.0\(0\)hsk\(0.357\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:8.0\(1\):*:*:*:*:*:*:* *cpe:2.3:o:cisco:nx-os:8.1\(0\)bd\(0.20\):*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:o:cisco:lan_switch_software:12.2\(1.107\):*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Dec. 02, 2017

    Action Type Old Value New Value
    Added Reference http://www.securitytracker.com/id/1039938 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2017-12339 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.05635

percentile

CVSS30 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability