Netty up to 4.1.43 HttpObjectDecoder.java request smuggling

Summaryinfo

A vulnerability, which was classified as critical, was found in Netty up to 4.1.43. Affected is an unknown function of the file HttpObjectDecoder.java. Such manipulation leads to request smuggling. This vulnerability is uniquely identified as CVE-2019-20445. The attack can be launched remotely. No exploit exists. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Netty up to 4.1.43 and classified as critical. Affected by this issue is some unknown functionality of the file HttpObjectDecoder.java. The manipulation with an unknown input leads to a request smuggling vulnerability. Using CWE to declare the problem leads to CWE-444. The product acts as an intermediary HTTP agent (such as a proxy or firewall) in the data flow between two entities such as a client and server, but it does not interpret malformed HTTP requests or responses in ways that are consistent with how the messages will be processed by those entities that are at the ultimate destination. Impacted is confidentiality, and integrity. CVE summarizes:

HttpObjectDecoder.java in Netty before 4.1.44 allows a Content-Length header to be accompanied by a second Content-Length header, or by a Transfer-Encoding header.

The weakness was disclosed 01/29/2020. This vulnerability is handled as CVE-2019-20445 since 01/29/2020. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit.

Upgrading to version 4.1.44 eliminates this vulnerability.

The entry VDB-149521 is pretty similar. If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Name

• Netty

Version

• 4.1.0
• 4.1.1
• 4.1.2
• 4.1.3
• 4.1.4
• 4.1.5
• 4.1.6
• 4.1.7
• 4.1.8
• 4.1.9
• 4.1.10
• 4.1.11
• 4.1.12
• 4.1.13
• 4.1.14
• 4.1.15
• 4.1.16
• 4.1.17
• 4.1.18
• 4.1.19
• 4.1.20
• 4.1.21
• 4.1.22
• 4.1.23
• 4.1.24
• 4.1.25
• 4.1.26
• 4.1.27
• 4.1.28
• 4.1.29
• 4.1.30
• 4.1.31
• 4.1.32
• 4.1.33
• 4.1.34
• 4.1.35
• 4.1.36
• 4.1.37
• 4.1.38
• 4.1.39
• 4.1.40
• 4.1.41
• 4.1.42
• 4.1.43

Website

• Product: https://github.com/netty/netty/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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