Path Traversal in Cisco Network Services Orchestrator
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:H.
EPSS exploit prediction
EPSS: 0.012 (69.0th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.012 · newest: 0.012 · change: 0.000
Affected products
- Cisco Network Services Orchestrator — versions 4.7.3
- Cisco Network Services Orchestrator — versions 5.8
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2023-20040?
- CVE-2023-20040 is a medium-severity vulnerability in Cisco Network Services Orchestrator, classified under Relative Path Traversal. CVSS score: 5.5/10. Published 2023-01-20.
- How severe is CVE-2023-20040?
- Medium severity. CVSS v3 base score is 5.5 out of 10.