🛡️ CVE-2017-12165 — undertow-core

🟠 CVSS 8.0 — High ✅ No Known Exploit CWE-444 OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Undertow Request Smuggling vulnerability

It was discovered that Undertow before 1.4.17, 1.3.31 and 2.0.0 processes http request headers with unusual whitespaces which can cause possible http request smuggling.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity high, availability none.

Weakness class

CVE-2017-12165 is classified as CWE-444: HTTP Request Smuggling. A proxy and a server disagree on where one request ends, letting an attacker slip a second request past the front end.

Affected software

CVE-2017-12165 is recorded against 1 package.

  • io.undertow:undertow-core (from 2.0.0.Alpha1 up to 2.0.0.Beta1)

Timeline and source

Published on 13 May 2022 and last revised on 20 March 2024. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
bugzilla.redhat.com (Web)
github.com (Package)
issues.redhat.com (Web)

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CWE CWE-444
Public Exploit ✅ No
Source OSV
Published 2022-05-13
Updated 2026-08-12
Modified 2024-03-20
Fix URL N/A

Affected Packages

Software From version Fixed in
io.undertow:undertow-core 2.0.0.Alpha1 2.0.0.Beta1

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