# Snyk test report

September 8th 2024, 12:21:25 am (UTC+00:00)

Scanned the following paths:

- /argo-cd/argoproj/argo-cd/v2/go.mod (gomodules)
- /argo-cd/ui/yarn.lock (yarn)

3 known vulnerabilities
3 vulnerable dependency paths
2061 dependencies

## Denial of Service (DoS)

medium severity

- Manifest file: /argo-cd/argoproj/argo-cd/v2 › go.mod
- Package Manager: golang
- Vulnerable module: github.com/rs/cors
- Introduced through: github.com/argoproj/argo-cd/v2@0.0.0, github.com/improbable-eng/grpc-web/go/grpcweb@0.15.0 and others

### Detailed paths

- Introduced through: github.com/argoproj/argo-cd/v2@0.0.0 › github.com/improbable-eng/grpc-web/go/grpcweb@0.15.0 › github.com/rs/cors@1.9.0

## Overview

Affected versions of this package are vulnerable to Denial of Service (DoS) through the processing of malicious preflight requests that include a `Access-Control-Request-Headers` header with excessive commas. An attacker can induce excessive memory consumption and potentially crash the server by sending specially crafted requests.

## PoC

            func BenchmarkPreflightAdversarialACRH(b *testing.B) {
                resps := makeFakeResponses(b.N)
                req, _ := http.NewRequest(http.MethodOptions, dummyEndpoint, nil)
                req.Header.Add(headerOrigin, dummyOrigin)
                req.Header.Add(headerACRM, http.MethodGet)
                req.Header[headerACRH] = adversarialACRH
                handler := Default().Handler(testHandler)

                b.ReportAllocs()
                b.ResetTimer()
                for i := 0; i < b.N; i++ {
                    handler.ServeHTTP(resps[i], req)
                }
            }

            var adversarialACRH []string

            func init() { // populates adversarialACRH
                n := int(math.Floor(math.Sqrt(http.DefaultMaxHeaderBytes)))
                commas := strings.Repeat(",", n)
                res := make([]string, n)
                for i := range res {
                    res[i] = commas
                }
                adversarialACRH = res
            }

## Details

Denial of Service (DoS) describes a family of attacks, all aimed at making a system inaccessible to its intended and legitimate users.

Unlike other vulnerabilities, DoS attacks usually do not aim at breaching security. Rather, they are focused on making websites and services unavailable to genuine users resulting in downtime.

One popular Denial of Service vulnerability is DDoS (a Distributed Denial of Service), an attack that attempts to clog network pipes to the system by generating a large volume of traffic from many machines.

When it comes to open source libraries, DoS vulnerabilities allow attackers to trigger such a crash or crippling of the service by using a flaw either in the application code or from the use of open source libraries.

Two common types of DoS vulnerabilities:

- High CPU/Memory Consumption- An attacker sending crafted requests that could cause the system to take a disproportionate amount of time to process. For example, commons-fileupload:commons-fileupload.

- Crash - An attacker sending crafted requests that could cause the system to crash. For Example, npm `ws` package

## Remediation

Upgrade `github.com/rs/cors` to version 1.11.0 or higher.

## References

- GitHub Commit
- GitHub Issue
- GitHub PR

More about this vulnerability

## Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

medium severity

- Manifest file: /argo-cd/argoproj/argo-cd/v2 › go.mod
- Package Manager: golang
- Vulnerable module: github.com/Azure/azure-sdk-for-go/sdk/azidentity
- Introduced through: github.com/argoproj/argo-cd/v2@0.0.0, github.com/Azure/kubelogin/pkg/token@0.0.20 and others

### Detailed paths

- Introduced through: github.com/argoproj/argo-cd/v2@0.0.0 › github.com/Azure/kubelogin/pkg/token@0.0.20 › github.com/Azure/azure-sdk-for-go/sdk/azidentity@1.1.0

## Overview

github.com/Azure/azure-sdk-for-go/sdk/azidentity is a module that provides Microsoft Entra ID (formerly Azure Active Directory) token authentication support across the Azure SDK. It includes a set of TokenCredential implementations, which can be used with Azure SDK clients supporting token authentication.

Affected versions of this package are vulnerable to Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in the authentication process. An attacker can elevate privileges by exploiting race conditions during the token validation steps. This is only exploitable if the application is configured to use multiple threads or processes for handling authentication requests.

Notes:

1. An attacker who successfully exploited the vulnerability could elevate privileges and read any file on the file system with SYSTEM access permissions;

2. An attacker who successfully exploits this vulnerability can only obtain read access to the system files by exploiting this vulnerability. The attacker cannot perform write or delete operations on the files;

3. The vulnerability exists in the following credential types: `DefaultAzureCredential` and `ManagedIdentityCredential`;

4. The vulnerability exists in the following credential types:

`ManagedIdentityApplication` (.NET)

`ManagedIdentityApplication` (Java)

`ManagedIdentityApplication` (Node.js)

## Remediation

Upgrade `github.com/Azure/azure-sdk-for-go/sdk/azidentity` to version 1.6.0 or higher.

## References

- GitHub Commit
- GitHub Commit
- GitHub Commit
- GitHub Commit
- GitHub Commit
- GitHub Commit
- GitHub Commit
- Microsoft Advisory

More about this vulnerability

## Template Injection

medium severity

- Manifest file: /argo-cd › ui/yarn.lock
- Package Manager: npm
- Vulnerable module: dompurify
- Introduced through: argo-cd-ui@1.0.0, redoc@2.0.0-rc.64 and others

### Detailed paths

- Introduced through: argo-cd-ui@1.0.0 › redoc@2.0.0-rc.64 › dompurify@2.3.6

## Overview

dompurify is a DOM-only XSS sanitizer for HTML, MathML and SVG.

Affected versions of this package are vulnerable to Template Injection in `purify.js`, due to inconsistencies in the parsing of XML and HTML tags. Executable code can be injected in HTML inside XML `CDATA` blocks.

## PoC

    <![CDATA[ ><img src onerror=alert(1)> ]]>

## Remediation

Upgrade `dompurify` to version 2.4.9, 3.0.11 or higher.

## References

- GitHub Commit
- GitHub Commit
- Vulnerability Report

More about this vulnerability