5.5

CVE-2023-20040

A vulnerability in the NETCONF service of Cisco Network Services Orchestrator (NSO) could allow an authenticated, remote attacker to cause a denial of service (DoS) on an affected system that is running as the root user. To exploit this vulnerability, the attacker must be a member of the admin group.

 This vulnerability exists because user-supplied input is not properly validated when NETCONF is used to upload packages to an affected device. An attacker could exploit this vulnerability by uploading a specially crafted package file. A successful exploit could allow the attacker to write crafted files to arbitrary locations on the filesystem or delete arbitrary files from the filesystem of an affected device, resulting in a DoS condition. 

 Note: By default, during install, Cisco NSO will be set up to run as the root user unless the --run-as-user option is used.

Data is provided by the National Vulnerability Database (NVD)
Cisco ≫ Network Services Orchestrator Version >= 3.3 < 5.4.7
Cisco ≫ Network Services Orchestrator Version >= 5.5 < 5.5.6
Cisco ≫ Network Services Orchestrator Version >= 5.6 < 5.6.7
Cisco ≫ Network Services Orchestrator Version >= 5.7 < 5.7.4
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 1.41% 0.787
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 5.5 1.2 4.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
psirt@cisco.com 5.5 1.2 4.2
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H
CWE-23 Relative Path Traversal

The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.

CWE-434 Unrestricted Upload of File with Dangerous Type

The product allows the upload or transfer of dangerous file types that are automatically processed within its environment.