FKIE_CVE-2019-1836

Vulnerability from fkie_nvd - Published: 2019-05-03 17:29 - Updated: 2024-11-21 04:37
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
Summary
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. This vulnerability has been fixed in software version 14.1(1i).
References
psirt@cisco.comhttp://www.securityfocus.com/bid/108150Third Party Advisory, VDB Entry
psirt@cisco.comhttps://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-fabric-traversalVendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.securityfocus.com/bid/108150Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-fabric-traversalVendor Advisory
Impacted products
Vendor Product Version
cisco nx-os 14.0\(3d\)
cisco nexus_9300 -
cisco nexus_9500 -
To clipboard 

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