PT-2017-12502 · Cisco · Cisco Nx-Os+1

Published 2017-11-29 · Updated 2017-12-15 · CVE-2017-12336

Positive Technologies (AI Summary)

CVSS v2.0

4.6

Medium

Base vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions Cisco NX-OS System Software (affected versions not specified)

Description A vulnerability in the TCL scripting subsystem could allow an authenticated, local attacker to escape the interactive TCL shell and gain unauthorized access to the underlying operating system of the device. The issue exists due to insufficient input validation of user-supplied files passed to the interactive TCL shell. An attacker could exploit this to execute arbitrary commands on the underlying operating system with the privileges of the authenticated user. To exploit this, an attacker must have local access and be authenticated to the targeted device with administrative or tclsh execution privileges.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Weakness Enumeration

CWE-20

Related Identifiers

CVE-2017-12336

Affected Products

Cisco Nx-Os

Cisco Nexus

References · 5

• https://osv.dev/vulnerability/CVE-2017-12336 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-12336 · Security Note
• https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-nxos5 · Vendor Advisory
• http://securityfocus.com/bid/102168 · Note
• http://securitytracker.com/id/1039936 · Note