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reactor-netty-0.7.8.RELEASE.jar: 13 vulnerabilities (highest severity is: 9.1) #129

@mend-bolt-for-github

Description

@mend-bolt-for-github
Vulnerable Library - reactor-netty-0.7.8.RELEASE.jar

Reactive Streams Netty driver

Library home page: https://github.com/reactor/reactor-netty

Path to dependency file: /pom.xml

Path to vulnerable library: /reactor/ipc/reactor-netty/0.7.8.RELEASE/reactor-netty-0.7.8.RELEASE.jar

Vulnerabilities

CVE Severity CVSS Dependency Type Fixed in (reactor-netty version) Remediation Available
CVE-2019-20445 High 9.1 netty-codec-http-4.1.25.Final.jar Transitive N/A*
CVE-2019-20444 High 9.1 netty-codec-http-4.1.25.Final.jar Transitive N/A*
CVE-2020-11612 High 7.5 netty-codec-4.1.25.Final.jar Transitive N/A*
CVE-2021-37136 High 7.5 netty-codec-4.1.25.Final.jar Transitive N/A*
CVE-2021-37137 High 7.5 netty-codec-4.1.25.Final.jar Transitive N/A*
CVE-2019-16869 High 7.5 netty-codec-http-4.1.25.Final.jar Transitive N/A*
CVE-2020-7238 High 7.5 netty-codec-http-4.1.25.Final.jar Transitive N/A*
WS-2020-0408 High 7.4 netty-handler-4.1.25.Final.jar Transitive N/A*
CVE-2021-43797 Medium 6.5 netty-codec-http-4.1.25.Final.jar Transitive N/A*
CVE-2021-21295 Medium 5.9 netty-codec-http-4.1.25.Final.jar Transitive N/A*
CVE-2020-5404 Medium 5.9 reactor-netty-0.7.8.RELEASE.jar Direct io.projectreactor.netty:reactor-netty:0.8.16.RELEASE,0.9.5.RELEASE
CVE-2022-24823 Medium 5.5 netty-common-4.1.25.Final.jar Transitive N/A*
CVE-2021-21290 Medium 5.5 detected in multiple dependencies Transitive N/A*

*For some transitive vulnerabilities, there is no version of direct dependency with a fix. Check the "Details" section below to see if there is a version of transitive dependency where vulnerability is fixed.

Details

CVE-2019-20445

Vulnerable Library - netty-codec-http-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.25.Final/netty-codec-http-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2020-01-29

URL: CVE-2019-20445

CVSS 3 Score Details (9.1)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: High
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20445

Release Date: 2020-01-29

Fix Resolution: io.netty:netty-codec-http:4.1.44

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CVE-2019-20444

Vulnerable Library - netty-codec-http-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.25.Final/netty-codec-http-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

HttpObjectDecoder.java in Netty before 4.1.44 allows an HTTP header that lacks a colon, which might be interpreted as a separate header with an incorrect syntax, or might be interpreted as an "invalid fold."

Publish Date: 2020-01-29

URL: CVE-2019-20444

CVSS 3 Score Details (9.1)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: High
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20444

Release Date: 2020-01-29

Fix Resolution: io.netty:netty-all:4.1.44.Final

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CVE-2020-11612

Vulnerable Library - netty-codec-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec/4.1.25.Final/netty-codec-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar
      • netty-codec-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

The ZlibDecoders in Netty 4.1.x before 4.1.46 allow for unbounded memory allocation while decoding a ZlibEncoded byte stream. An attacker could send a large ZlibEncoded byte stream to the Netty server, forcing the server to allocate all of its free memory to a single decoder.

Publish Date: 2020-04-07

URL: CVE-2020-11612

CVSS 3 Score Details (7.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://netty.io/news/2020/02/28/4-1-46-Final.html

Release Date: 2020-04-07

Fix Resolution: io.netty:netty-codec:4.1.46.Final;io.netty:netty-all:4.1.46.Final

Step up your Open Source Security Game with Mend here

CVE-2021-37136

Vulnerable Library - netty-codec-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec/4.1.25.Final/netty-codec-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar
      • netty-codec-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

The Bzip2 decompression decoder function doesn't allow setting size restrictions on the decompressed output data (which affects the allocation size used during decompression). All users of Bzip2Decoder are affected. The malicious input can trigger an OOME and so a DoS attack

Publish Date: 2021-10-19

URL: CVE-2021-37136

CVSS 3 Score Details (7.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-grg4-wf29-r9vv

Release Date: 2021-10-19

Fix Resolution: io.netty:netty-codec:4.1.68.Final;io.netty:netty-all::4.1.68.Final

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CVE-2021-37137

Vulnerable Library - netty-codec-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec/4.1.25.Final/netty-codec-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar
      • netty-codec-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

The Snappy frame decoder function doesn't restrict the chunk length which may lead to excessive memory usage. Beside this it also may buffer reserved skippable chunks until the whole chunk was received which may lead to excessive memory usage as well. This vulnerability can be triggered by supplying malicious input that decompresses to a very big size (via a network stream or a file) or by sending a huge skippable chunk.

Publish Date: 2021-10-19

URL: CVE-2021-37137

CVSS 3 Score Details (7.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: None
    • Availability Impact: High

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-9vjp-v76f-g363

Release Date: 2021-10-19

Fix Resolution: io.netty:netty-codec:4.1.68.Final;io.netty:netty-all:4.1.68.Final

Step up your Open Source Security Game with Mend here

CVE-2019-16869

Vulnerable Library - netty-codec-http-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.25.Final/netty-codec-http-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

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.

Publish Date: 2019-09-26

URL: CVE-2019-16869

CVSS 3 Score Details (7.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-16869

Release Date: 2019-09-26

Fix Resolution: io.netty:netty-all:4.1.42.Final,io.netty:netty-codec-http:4.1.42.Final

Step up your Open Source Security Game with Mend here

CVE-2020-7238

Vulnerable Library - netty-codec-http-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.25.Final/netty-codec-http-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Netty 4.1.43.Final allows HTTP Request Smuggling because it mishandles Transfer-Encoding whitespace (such as a [space]Transfer-Encoding:chunked line) and a later Content-Length header. This issue exists because of an incomplete fix for CVE-2019-16869.

Publish Date: 2020-01-27

URL: CVE-2020-7238

CVSS 3 Score Details (7.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Release Date: 2020-01-27

Fix Resolution: io.netty:netty-all:4.1.44.Final;io.netty:netty-codec-http:4.1.44.Final

Step up your Open Source Security Game with Mend here

WS-2020-0408

Vulnerable Library - netty-handler-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-handler/4.1.25.Final/netty-handler-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-handler-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

An issue was found in all versions of io.netty:netty-all. Host verification in Netty is disabled by default. This can lead to MITM attack in which an attacker can forge valid SSL/TLS certificates for a different hostname in order to intercept traffic that doesn’t intend for him. This is an issue because the certificate is not matched with the host.

Publish Date: 2020-06-22

URL: WS-2020-0408

CVSS 3 Score Details (7.4)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: High
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: High
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://nvd.nist.gov/vuln/detail/WS-2020-0408

Release Date: 2020-06-22

Fix Resolution: io.netty:netty-all - 4.1.68.Final-redhat-00001,4.0.0.Final,4.1.67.Final-redhat-00002;io.netty:netty-handler - 4.1.68.Final-redhat-00001,4.1.67.Final-redhat-00001

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CVE-2021-43797

Vulnerable Library - netty-codec-http-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.25.Final/netty-codec-http-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. Netty prior to version 4.1.71.Final skips control chars when they are present at the beginning / end of the header name. It should instead fail fast as these are not allowed by the spec and could lead to HTTP request smuggling. Failing to do the validation might cause netty to "sanitize" header names before it forward these to another remote system when used as proxy. This remote system can't see the invalid usage anymore, and therefore does not do the validation itself. Users should upgrade to version 4.1.71.Final.
Mend Note: After conducting further research, Mend has determined that all versions of netty up to version 4.1.71.Final are vulnerable to CVE-2021-43797.

Publish Date: 2021-12-09

URL: CVE-2021-43797

CVSS 3 Score Details (6.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: Low
    • Privileges Required: None
    • User Interaction: Required
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: CVE-2021-43797

Release Date: 2021-12-09

Fix Resolution: io.netty:netty-codec-http:4.1.71.Final,io.netty:netty-all:4.1.71.Final

Step up your Open Source Security Game with Mend here

CVE-2021-21295

Vulnerable Library - netty-codec-http-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.25.Final/netty-codec-http-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty (io.netty:netty-codec-http2) before version 4.1.60.Final there is a vulnerability that enables request smuggling. If a Content-Length header is present in the original HTTP/2 request, the field is not validated by Http2MultiplexHandler as it is propagated up. This is fine as long as the request is not proxied through as HTTP/1.1. If the request comes in as an HTTP/2 stream, gets converted into the HTTP/1.1 domain objects (HttpRequest, HttpContent, etc.) via Http2StreamFrameToHttpObjectCodec and then sent up to the child channel's pipeline and proxied through a remote peer as HTTP/1.1 this may result in request smuggling. In a proxy case, users may assume the content-length is validated somehow, which is not the case. If the request is forwarded to a backend channel that is a HTTP/1.1 connection, the Content-Length now has meaning and needs to be checked. An attacker can smuggle requests inside the body as it gets downgraded from HTTP/2 to HTTP/1.1. For an example attack refer to the linked GitHub Advisory. Users are only affected if all of this is true: HTTP2MultiplexCodec or Http2FrameCodec is used, Http2StreamFrameToHttpObjectCodec is used to convert to HTTP/1.1 objects, and these HTTP/1.1 objects are forwarded to another remote peer. This has been patched in 4.1.60.Final As a workaround, the user can do the validation by themselves by implementing a custom ChannelInboundHandler that is put in the ChannelPipeline behind Http2StreamFrameToHttpObjectCodec.

Publish Date: 2021-03-09

URL: CVE-2021-21295

CVSS 3 Score Details (5.9)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: High
    • Privileges Required: None
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: None
    • Integrity Impact: High
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-wm47-8v5p-wjpj

Release Date: 2021-03-09

Fix Resolution: io.netty:netty-all:4.1.60;io.netty:netty-codec-http:4.1.60;io.netty:netty-codec-http2:4.1.60

Step up your Open Source Security Game with Mend here

CVE-2020-5404

Vulnerable Library - reactor-netty-0.7.8.RELEASE.jar

Reactive Streams Netty driver

Library home page: https://github.com/reactor/reactor-netty

Path to dependency file: /pom.xml

Path to vulnerable library: /reactor/ipc/reactor-netty/0.7.8.RELEASE/reactor-netty-0.7.8.RELEASE.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

The HttpClient from Reactor Netty, versions 0.9.x prior to 0.9.5, and versions 0.8.x prior to 0.8.16, may be used incorrectly, leading to a credentials leak during a redirect to a different domain. In order for this to happen, the HttpClient must have been explicitly configured to follow redirects.

Publish Date: 2020-03-03

URL: CVE-2020-5404

CVSS 3 Score Details (5.9)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Network
    • Attack Complexity: High
    • Privileges Required: Low
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: High
    • Integrity Impact: Low
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://pivotal.io/security/cve-2020-5404

Release Date: 2020-03-03

Fix Resolution: io.projectreactor.netty:reactor-netty:0.8.16.RELEASE,0.9.5.RELEASE

Step up your Open Source Security Game with Mend here

CVE-2022-24823

Vulnerable Library - netty-common-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-common/4.1.25.Final/netty-common-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-transport-native-epoll-4.1.25.Final.jar
      • netty-common-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Netty is an open-source, asynchronous event-driven network application framework. The package io.netty:netty-codec-http prior to version 4.1.77.Final contains an insufficient fix for CVE-2021-21290. When Netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. This only impacts applications running on Java version 6 and lower. Additionally, this vulnerability impacts code running on Unix-like systems, and very old versions of Mac OSX and Windows as they all share the system temporary directory between all users. Version 4.1.77.Final contains a patch for this vulnerability. As a workaround, specify one's own java.io.tmpdir when starting the JVM or use DefaultHttpDataFactory.setBaseDir(...) to set the directory to something that is only readable by the current user.

Publish Date: 2022-05-06

URL: CVE-2022-24823

CVSS 3 Score Details (5.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Local
    • Attack Complexity: Low
    • Privileges Required: Low
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: High
    • Integrity Impact: None
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-24823

Release Date: 2022-05-06

Fix Resolution: io.netty:netty-all;io.netty:netty-common - 4.1.77.Final

Step up your Open Source Security Game with Mend here

CVE-2021-21290

Vulnerable Libraries - netty-handler-4.1.25.Final.jar, netty-codec-http-4.1.25.Final.jar

netty-handler-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-handler/4.1.25.Final/netty-handler-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-handler-4.1.25.Final.jar (Vulnerable Library)

netty-codec-http-4.1.25.Final.jar

Netty is an asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers and clients.

Library home page: http://netty.io/

Path to dependency file: /pom.xml

Path to vulnerable library: /home/wss-scanner/.m2/repository/io/netty/netty-codec-http/4.1.25.Final/netty-codec-http-4.1.25.Final.jar

Dependency Hierarchy:

  • reactor-netty-0.7.8.RELEASE.jar (Root Library)
    • netty-codec-http-4.1.25.Final.jar (Vulnerable Library)

Found in base branch: master

Vulnerability Details

Netty is an open-source, asynchronous event-driven network application framework for rapid development of maintainable high performance protocol servers & clients. In Netty before version 4.1.59.Final there is a vulnerability on Unix-like systems involving an insecure temp file. When netty's multipart decoders are used local information disclosure can occur via the local system temporary directory if temporary storing uploads on the disk is enabled. On unix-like systems, the temporary directory is shared between all user. As such, writing to this directory using APIs that do not explicitly set the file/directory permissions can lead to information disclosure. Of note, this does not impact modern MacOS Operating Systems. The method "File.createTempFile" on unix-like systems creates a random file, but, by default will create this file with the permissions "-rw-r--r--". Thus, if sensitive information is written to this file, other local users can read this information. This is the case in netty's "AbstractDiskHttpData" is vulnerable. This has been fixed in version 4.1.59.Final. As a workaround, one may specify your own "java.io.tmpdir" when you start the JVM or use "DefaultHttpDataFactory.setBaseDir(...)" to set the directory to something that is only readable by the current user.

Publish Date: 2021-02-08

URL: CVE-2021-21290

CVSS 3 Score Details (5.5)

Base Score Metrics:

  • Exploitability Metrics:
    • Attack Vector: Local
    • Attack Complexity: Low
    • Privileges Required: Low
    • User Interaction: None
    • Scope: Unchanged
  • Impact Metrics:
    • Confidentiality Impact: High
    • Integrity Impact: None
    • Availability Impact: None

For more information on CVSS3 Scores, click here.

Suggested Fix

Type: Upgrade version

Origin: GHSA-5mcr-gq6c-3hq2

Release Date: 2021-02-08

Fix Resolution: io.netty:netty-codec-http:4.1.59.Final

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