#VU71102 Path traversal in Cisco Network Services Orchestrator (NSO) - CVE-2023-20040
Published: January 11, 2023
Vulnerability identifier: #VU71102
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2023-20040
CWE-ID: CWE-22
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
Cisco Network Services Orchestrator (NSO)
Cisco Network Services Orchestrator (NSO)
Software vendor:
Cisco Systems, Inc
Cisco Systems, Inc
Description
The vulnerability allows a remote user to perform directory traversal attacks.
The vulnerability exists due to input validation in the NETCONF service when uploading packages to device. A remote user can upload a specially crafted package file and write files to arbitrary locations or delete arbitrary files on the system, resulting in a denial of service (DoS) attack.
Remediation
Install update from vendor's website.