Vulnslist

find the latest Cisco vulnerabilities

Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Symbolic Link Path Traversal Vulnerability

cisco-sa-20190501-fabric-traversal · Medium · Published · Updated

A vulnerability in the system shell for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an authenticated, local attacker to use symbolic links to overwrite system files. These system files may be sensitive and should not be overwritable by non-root users. The attacker would need valid device credentials. The vulnerability is due to incorrect symbolic link verification of directory paths when they are used in the system shell. An attacker could exploit this vulnerability by authenticating to the device and providing crafted user input to specific symbolic link CLI commands. Successful exploitation could allow the attacker to overwrite system files that should be restricted. There are no workarounds that address this vulnerability. This advisory is available at the following link: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-fabric-traversal

Cisco advisory ·CSAF JSON

Workarounds

There are no workarounds that address this vulnerability.

CVEsCVE-2019-1836
Cisco Bug IDsCSCvo80695
CVSS ScoreBase 5.5
Base 5.5 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N/E:X/RL:X/RC:X
Product Names From Source
Cisco NX-OS System Software in ACI Mode

CSAF Product Statuses

Product Status Source CVE Rows
Cisco NX-OS System Software in ACI Mode known_affected cisco_csaf CVE-2019-1836 1

Related Products

Product CVE Evidence
Cisco NX-OS Software CVE-2019-1836 Cisco OpenVuln
Cisco NX-OS System Software in ACI Mode CVE-2019-1836 Cisco OpenVuln
Cisco Nexus 9000 Series Switches CVE-2019-1836 Cisco OpenVuln