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HTTP Request Smuggling Affecting undertow package, versions <1.4.23-1

Severity

 Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
1.13% (78th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-UNDERTOW-307903
  • published10 Jan 2018
  • disclosed10 Jan 2018
Report a new vulnerability Found a mistake?

Introduced: 10 Jan 2018

CVE-2017-7559  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Debian:unstable undertow to version 1.4.23-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream undertow package and not the undertow package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

In Undertow 2.x before 2.0.0.Alpha2, 1.4.x before 1.4.17.Final, and 1.3.x before 1.3.31.Final, it was found that the fix for CVE-2017-2666 was incomplete and invalid characters are still allowed in the query string and path parameters. This could be exploited, in conjunction with a proxy that also permitted the invalid characters but with a different interpretation, to inject data into the HTTP response. By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.