swagger-api / swagger-api/swagger-codegen
WS-2020-0408 (High) detected in netty-handler-4.1.8.Final.jar, netty-handler-4.0.42.Final.jar
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Description
WS-2020-0408 - High Severity Vulnerability
Vulnerable Libraries - netty-handler-4.1.8.Final.jar, netty-handler-4.0.42.Final.jar
netty-handler-4.1.8.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: /samples/client/petstore/java/vertx/build.gradle
Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-handler/4.1.8.Final/db01139bfb11afd009a695eef55b43bbf22c4ef5/netty-handler-4.1.8.Final.jar
Dependency Hierarchy:
- vertx-web-client-3.4.2.jar (Root Library)
- vertx-core-3.4.2.jar
- ❌ netty-handler-4.1.8.Final.jar (Vulnerable Library)
- vertx-core-3.4.2.jar
netty-handler-4.0.42.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: /samples/client/petstore/java/retrofit2-play25/build.gradle
Path to vulnerable library: /home/wss-scanner/.gradle/caches/modules-2/files-2.1/io.netty/netty-handler/4.0.42.Final/f5cb4b1ec0a4c3135064b43542a935f1b3435589/netty-handler-4.0.42.Final.jar
Dependency Hierarchy:
- play-java-ws_2.11-2.5.14.jar (Root Library)
- async-http-client-2.0.24.jar
- netty-codec-http-4.0.42.Final.jar
- ❌ netty-handler-4.0.42.Final.jar (Vulnerable Library)
- netty-codec-http-4.0.42.Final.jar
- async-http-client-2.0.24.jar
Found in HEAD commit: 4b7a8d7d7384aa6a27d6309c35ade0916edae7ed
Found in base branches: 3.0.0, 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
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-handler): 4.1.69.Final
Direct dependency fix Resolution (io.vertx:vertx-web-client): 3.5.0
- Check this box to open an automated fix PR
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with samples/client/petstore/java/vertx/build.gradle and samples/client/petstore/java/retrofit2-play25/build.gradle, then inspect how their transitive Netty dependencies are resolved. Update the dependency path to use the suggested fixed versions while checking compatibility with each sample. Run the relevant Gradle builds or tests; done means both samples build successfully without the vulnerable Netty versions.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java
- Domain
- build-system, security
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Clearly specified
- Newbie friendliness
- 45/100