// For flags

CVE-2019-16869

netty: HTTP request smuggling by mishandled whitespace before the colon in HTTP headers

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Netty before 4.1.42.Final mishandles whitespace before the colon in HTTP headers (such as a "Transfer-Encoding : chunked" line), which leads to HTTP request smuggling.

Netty versiones anteriores a 4.1.42.Final, maneja inapropiadamente los espacios en blanco antes de los dos puntos en los encabezados HTTP (tal y como una línea "Transfer-Encoding : chunked"), lo que conlleva al tráfico no autorizado de peticiones HTTP.

A flaw was found in Netty, where whitespace before the colon in HTTP headers is mishandled. This flaw allows an attacker to cause HTTP request smuggling.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-09-25 CVE Reserved
  • 2019-09-26 CVE Published
  • 2024-08-05 CVE Updated
  • 2024-08-05 First Exploit
  • 2024-09-19 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-444: Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
CAPEC
References (82)
URL Tag Source
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https://seclists.org/bugtraq/2020/Jan/6 Issue Tracking
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
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Jboss Enterprise Application Platform
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7.2
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-
Affected
in Redhat
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Enterprise Linux
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6.0
Search vendor "Redhat" for product "Enterprise Linux" and version "6.0"
-
Safe
Redhat
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Jboss Enterprise Application Platform
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7.2
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-
Affected
in Redhat
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Enterprise Linux
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7.0
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-
Safe
Redhat
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Jboss Enterprise Application Platform
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7.2
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-
Affected
in Redhat
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Enterprise Linux
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8.0
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-
Safe
Redhat
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Jboss Enterprise Application Platform
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7.3
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-
Affected
in Redhat
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Enterprise Linux
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6.0
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-
Safe
Redhat
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Jboss Enterprise Application Platform
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7.3
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-
Affected
in Redhat
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Enterprise Linux
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7.0
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-
Safe
Redhat
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Jboss Enterprise Application Platform
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7.3
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-
Affected
in Redhat
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Enterprise Linux
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8.0
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-
Safe
Redhat
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Jboss Enterprise Application Platform
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7.4
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-
Affected
in Redhat
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Enterprise Linux
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6.0
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Safe
Redhat
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Jboss Enterprise Application Platform
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7.4
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-
Affected
in Redhat
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Enterprise Linux
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7.0
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-
Safe
Redhat
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Jboss Enterprise Application Platform
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7.4
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-
Affected
in Redhat
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Enterprise Linux
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8.0
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-
Safe
Netty
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Netty
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< 4.1.42
Search vendor "Netty" for product "Netty" and version " < 4.1.42"
-
Affected
Debian
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Debian Linux
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8.0
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Affected
Debian
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Debian Linux
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9.0
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Affected
Debian
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Debian Linux
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10.0
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Affected
Canonical
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Ubuntu Linux
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18.04
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lts
Affected