CVE-2023-20040
Description
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.
How to fix
- cisco network_services_orchestrator5.4.7, 5.5.6, 5.6.7, 5.7.4 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco network_services_orchestrator | 3.3 ≤ v < 5.4.7, 5.5 ≤ v < 5.5.6, 5.6 ≤ v < 5.6.7, 5.7 ≤ v < 5.7.4, 5.8 | 5.4.7, 5.5.6, 5.6.7, 5.7.4 |
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