Update to v2.2.0 (#214)

Bumps [jsonata](https://github.com/jsonata-js/jsonata) from 1.8.3 to 1.8.4.
- [Release notes](https://github.com/jsonata-js/jsonata/releases)
- [Changelog](https://github.com/jsonata-js/jsonata/blob/master/CHANGELOG.md)
- [Commits](https://github.com/jsonata-js/jsonata/compare/v1.8.3...v1.8.4)

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/jira.yaml

@@ -5,7 +5,6 @@ on:
     types: [opened, closed, reopened]
   issue_comment: # Also triggers when commenting on a PR from the conversation view
     types: [created]
-  workflow_dispatch:
 
 name: Jira Sync
 
@@ -36,26 +35,27 @@ jobs:
         JIRA_USER_EMAIL: ${{ secrets.JIRA_SYNC_USER_EMAIL }}
         JIRA_API_TOKEN: ${{ secrets.JIRA_SYNC_API_TOKEN }}
 
-    - name: Set ticket type
+    - name: Preprocess
-      if: github.event.action == 'opened' && !steps.vault-team-role.outputs.role
+      if: github.event.action == 'opened' || github.event.action == 'created'
-      id: set-ticket-type
+      id: preprocess
       run: |
         if [[ "${{ github.event_name }}" == "pull_request_target" ]]; then
           echo "::set-output name=type::PR"
         else
           echo "::set-output name=type::ISS"
         fi
+
     - name: Create ticket
       if: github.event.action == 'opened' && !steps.vault-team-role.outputs.role
-      uses: tomhjp/gh-action-jira-create@v0.1.3
+      uses: tomhjp/gh-action-jira-create@v0.2.0
       with:
         project: VAULT
         issuetype: "GH Issue"
-        summary: "${{ github.event.repository.name }} [${{ steps.set-ticket-type.outputs.type }} #${{ github.event.issue.number || github.event.pull_request.number }}]: ${{ github.event.issue.title || github.event.pull_request.title }}"
+        summary: "${{ github.event.repository.name }} [${{ steps.preprocess.outputs.type }} #${{ github.event.issue.number || github.event.pull_request.number }}]: ${{ github.event.issue.title || github.event.pull_request.title }}"
         description: "${{ github.event.issue.body || github.event.pull_request.body }}\n\n_Created from GitHub Action for ${{ github.event.issue.html_url || github.event.pull_request.html_url }} from ${{ github.actor }}_"
         # customfield_10089 is Issue Link custom field
         # customfield_10091 is team custom field
-        extraFields: '{"fixVersions": [{"name": "TBD"}], "customfield_10091": ["ecosystem"], "customfield_10089": "${{ github.event.issue.html_url || github.event.pull_request.html_url }}"}'
+        extraFields: '{"fixVersions": [{"name": "TBD"}], "customfield_10091": ["ecosystem", "runtime"], "customfield_10089": "${{ github.event.issue.html_url || github.event.pull_request.html_url }}"}'
 
     - name: Search
       if: github.event.action != 'opened'
@@ -67,7 +67,7 @@ jobs:
 
     - name: Sync comment
       if: github.event.action == 'created' && steps.search.outputs.issue
-      uses: tomhjp/gh-action-jira-comment@v0.1.0
+      uses: tomhjp/gh-action-jira-comment@v0.2.0
       with:
         issue: ${{ steps.search.outputs.issue }}
         comment: "${{ github.actor }} ${{ github.event.review.state || 'commented' }}:\n\n${{ github.event.comment.body || github.event.review.body }}\n\n${{ github.event.comment.html_url || github.event.review.html_url }}"

CHANGELOG.md

@@ -1,5 +1,28 @@
 ## Unreleased
 
+## 2.2.0 (May 6th, 2021)
+
+Security:
+* multi-line secrets are now properly masked in logs [GH-208](https://github.com/hashicorp/vault-action/pull/208)
+  [CVE-2021-32074](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-32074)
+
+Features:
+* JWT auth method is now supported [GH-188](https://github.com/hashicorp/vault-action/pull/188)
+
+## 2.1.2 (January 21st, 2021)
+
+Bugs:
+* fixed bug where newlines were being rendered for multi-line secrets [GH-173](https://github.com/hashicorp/vault-action/pull/173)
+
+## 2.1.1 (December 15th, 2020)
+
+Improvements:
+* bump jest from 26.5.0 to 26.6.3 [GH-150](https://github.com/hashicorp/vault-action/pull/150)
+* bump semantic-release from 17.1.2 to 17.3.0 [GH-158](https://github.com/hashicorp/vault-action/pull/158)
+* bump got from 11.7.0 to 11.8.1 [GH-163](https://github.com/hashicorp/vault-action/pull/163)
+* bump @types/jest from 26.0.14 to 26.0.19 [GH-164](https://github.com/hashicorp/vault-action/pull/164)
+* bump ini from 1.3.5 to 1.3.8 [GH-167](https://github.com/hashicorp/vault-action/pull/167)
+
 ## 2.1.0 (October 6th, 2020)
 
 Features:

README.md

@@ -36,7 +36,7 @@ jobs:
         steps:
             # ...
             - name: Import Secrets
-              uses: hashicorp/vault-action@v2.0.1
+              uses: hashicorp/vault-action@v2.1.2
               with:
                 url: https://vault.mycompany.com:8200
                 token: ${{ secrets.VaultToken }}
@@ -71,14 +71,32 @@ with:
   caCertificate: ${{ secrets.VAULTCA }}
 ```
 - **github**: you must provide the github token as `githubToken`
+
+**Notice: [Vault GitHub authentication](https://www.vaultproject.io/docs/auth/github)
+requires `read:org` permissions for authentication. The auto-generated `GITHUB_TOKEN`
+created for projects does not have these permissions and GitHub does not allow this
+token's permissions to be modified. A new GitHub Token secret must be created with
+`read:org` permissions to use this authentication method.**
+
 ```yaml
 ...
 with:
   url: https://vault.mycompany.com:8200
   method: github
-  githubToken: ${{ secrets.GITHUB_TOKEN }}
+  githubToken: ${{ secrets.MY_GITHUB_TOKEN }}
   caCertificate: ${{ secrets.VAULTCA }}
 ```
+- **jwt**: you must provide a `role` & `jwtPrivateKey` parameters, additionally you can pass `jwtKeyPassword` & `jwtTtl` parameters
+```yaml
+...
+with:
+  url: https://vault.mycompany.com:8200
+  method: jwt
+  role: github-action
+  jwtPrivateKey: ${{ secrets.JWT_PRIVATE_KEY }}
+  jwtKeyPassword: ${{ secrets.JWT_KEY_PASS }}
+  jwtTtl: 3600 # 1 hour, default value
+```
 
 If any other method is specified and you provide an `authPayload`, the action will attempt to `POST` to `auth/${method}/login` with the provided payload and parse out the client token.
 
@@ -247,6 +265,10 @@ Here are all the inputs available through `with`:
 | `roleId`            | The Role Id for App Role authentication                                                                                                              |         |          |
 | `secretId`          | The Secret Id for App Role authentication                                                                                                            |         |          |
 | `githubToken`       | The Github Token to be used to authenticate with Vault                                                                                               |         |          |
+| `role`              | Vault role for specified auth method                                                                                                                 |         |          |
+| `jwtPrivateKey`     | Base64 encoded Private key to sign JWT                                                                                                               |         |          |
+| `jwtKeyPassword`    | Password for key stored in jwtPrivateKey (if needed)                                                                                                 |         |          |
+| `jwtTtl`            | Time in seconds, after which token expires                                                                                                           |         | 3600     |
 | `authPayload`       | The JSON payload to be sent to Vault when using a custom authentication method.                                                                      |         |          |
 | `extraHeaders`      | A string of newline separated extra headers to include on every request.                                                                             |         |          |
 | `exportEnv`         | Whether or not export secrets as environment variables.                                                                                              | `true`  |          |

action.yml

@@ -53,6 +53,19 @@ inputs:
     description: 'When set to true, disables verification of the Vault server certificate.  Setting this to true in production is not recommended.'
     required: false
     default: "false"
+  role:
+    description: 'Vault role for specified auth method'
+    required: false
+  jwtPrivateKey:
+    description: 'Base64 encoded Private key to sign JWT'
+    required: false
+  jwtKeyPassword:
+    description: 'Password for key stored in jwtPrivateKey (if needed)'
+    required: false
+  jwtTtl:
+    description: 'Time in seconds, after which token expires'
+    required: false
+    default: 3600
 runs:
   using: 'node12'
   main: 'dist/index.js'

integrationTests/basic/jwt_auth.test.js

@@ -0,0 +1,126 @@
+jest.mock('@actions/core');
+jest.mock('@actions/core/lib/command');
+const core = require('@actions/core');
+const {
+    privateRsaKeyBase64,
+    publicRsaKey
+} = require('./rsa_keys');
+
+const got = require('got');
+const { when } = require('jest-when');
+
+const { exportSecrets } = require('../../src/action');
+
+const vaultUrl = `http://${process.env.VAULT_HOST || 'localhost'}:${process.env.VAULT_PORT || '8200'}`;
+
+describe('jwt auth', () => {
+    beforeAll(async () => {
+        // Verify Connection
+        await got(`${vaultUrl}/v1/secret/config`, {
+            headers: {
+                'X-Vault-Token': 'testtoken',
+            },
+        });
+
+        try {
+            await got(`${vaultUrl}/v1/sys/auth/jwt`, {
+                method: 'POST',
+                headers: {
+                    'X-Vault-Token': 'testtoken',
+                },
+                json: {
+                    type: 'jwt'
+                }
+            });
+        } catch (error) {
+            const {response} = error;
+            if (response.statusCode === 400 && response.body.includes("path is already in use")) {
+                // Auth method might already be enabled from previous test runs
+            } else {
+                throw error;
+            }
+        }
+
+        await got(`${vaultUrl}/v1/sys/policy/reader`, {
+            method: 'PUT',
+            headers: {
+                'X-Vault-Token': 'testtoken',
+            },
+            json: {
+                policy: `
+                path "*" {
+                    capabilities = ["read"]
+                }
+                `
+            }
+        });
+
+        await got(`${vaultUrl}/v1/auth/jwt/config`, {
+            method: 'POST',
+            headers: {
+                'X-Vault-Token': 'testtoken',
+            },
+            json: {
+                jwt_validation_pubkeys: publicRsaKey
+            }
+        });
+
+        await got(`${vaultUrl}/v1/auth/jwt/role/default`, {
+            method: 'POST',
+            headers: {
+                'X-Vault-Token': 'testtoken',
+            },
+            json: {
+                role_type: 'jwt',
+                bound_audiences: null,
+                bound_claims: {
+                    iss: 'vault-action'
+                },
+                user_claim: 'iss',
+                policies: ['reader']
+            }
+        });
+
+        await got(`${vaultUrl}/v1/secret/data/test`, {
+            method: 'POST',
+            headers: {
+                'X-Vault-Token': 'testtoken',
+            },
+            json: {
+                data: {
+                    secret: 'SUPERSECRET',
+                },
+            },
+        });
+    });
+
+    beforeEach(() => {
+        jest.resetAllMocks();
+
+        when(core.getInput)
+            .calledWith('url')
+            .mockReturnValueOnce(`${vaultUrl}`);
+
+        when(core.getInput)
+            .calledWith('method')
+            .mockReturnValueOnce('jwt');
+
+        when(core.getInput)
+            .calledWith('jwtPrivateKey')
+            .mockReturnValueOnce(privateRsaKeyBase64);
+
+        when(core.getInput)
+            .calledWith('role')
+            .mockReturnValueOnce('default');
+
+        when(core.getInput)
+            .calledWith('secrets')
+            .mockReturnValueOnce('secret/data/test secret');
+    });
+
+    it('successfully authenticates', async () => {
+        await exportSecrets();
+        expect(core.exportVariable).toBeCalledWith('SECRET', 'SUPERSECRET');
+    });
+
+});

integrationTests/basic/rsa_keys.js

@@ -0,0 +1,77 @@
+const privateRsaKey = `
+-----BEGIN RSA PRIVATE KEY-----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=
+-----END RSA PRIVATE KEY-----
+`;
+
+const privateRsaKeyBase64 = Buffer.from(privateRsaKey).toString('base64');
+
+const publicRsaKey = `
+-----BEGIN PUBLIC KEY-----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+-----END PUBLIC KEY-----
+`;
+
+module.exports = {
+    privateRsaKeyBase64,
+    publicRsaKey
+};

package.json

@@ -45,7 +45,8 @@
     "homepage": "https://github.com/hashicorp/vault-action#readme",
     "dependencies": {
         "got": "^11.5.1",
-        "jsonata": "^1.8.2"
+        "jsonata": "^1.8.2",
+        "jsrsasign": "^10.1.10"
     },
     "peerDependencies": {
         "@actions/core": ">=1 <2"

src/action.js

@@ -5,7 +5,7 @@ const got = require('got').default;
 const jsonata = require('jsonata');
 const { auth: { retrieveToken }, secrets: { getSecrets } } = require('./index');
 
-const AUTH_METHODS = ['approle', 'token', 'github'];
+const AUTH_METHODS = ['approle', 'token', 'github', 'jwt'];
 
 async function exportSecrets() {
     const vaultUrl = core.getInput('url', { required: true });
@@ -78,7 +78,11 @@ async function exportSecrets() {
         if (cachedResponse) {
             core.debug('ℹ using cached response');
         }
-        command.issue('add-mask', value);
+        for (const line of value.replace(/\r/g, '').split('\n')) {
+            if (line.length > 0) {
+                command.issue('add-mask', line);
+            }
+        }
         if (exportEnv) {
             core.exportVariable(request.envVarName, `${value}`);
         }

src/action.test.js

@@ -2,6 +2,7 @@ jest.mock('got');
 jest.mock('@actions/core');
 jest.mock('@actions/core/lib/command');
 
+const command = require('@actions/core/lib/command');
 const core = require('@actions/core');
 const got = require('got');
 const {
@@ -294,4 +295,40 @@ describe('exportSecrets', () => {
         expect(core.exportVariable).toBeCalledWith('KEY', '1');
         expect(core.setOutput).toBeCalledWith('key', '1');
     });
+
+    it('single-line secret gets masked', async () => {
+        mockInput('test key');
+        mockVaultData({
+            key: 'secret'
+        });
+        mockExportToken("false")
+
+        await exportSecrets();
+
+        expect(command.issue).toBeCalledTimes(1);
+
+        expect(command.issue).toBeCalledWith('add-mask', 'secret');
+        expect(core.setOutput).toBeCalledWith('key', 'secret');
+    })
+
+    it('multi-line secret gets masked for each line', async () => {
+        const multiLineString = `a multi-line string
+
+with blank lines
+
+`
+        mockInput('test key');
+        mockVaultData({
+            key: multiLineString
+        });
+        mockExportToken("false")
+
+        await exportSecrets();
+
+        expect(command.issue).toBeCalledTimes(2); // 1 for each non-empty line.
+
+        expect(command.issue).toBeCalledWith('add-mask', 'a multi-line string');
+        expect(command.issue).toBeCalledWith('add-mask', 'with blank lines');
+        expect(core.setOutput).toBeCalledWith('key', multiLineString);
+    })
 });

src/auth.js

@@ -1,5 +1,6 @@
 // @ts-check
 const core = require('@actions/core');
+const rsasign = require('jsrsasign');
 
 /***
  * Authenticate with Vault and retrieve a Vault token that can be used for requests.
@@ -17,6 +18,15 @@ async function retrieveToken(method, client) {
             const githubToken = core.getInput('githubToken', { required: true });
             return await getClientToken(client, method, { token: githubToken });
         }
+        case 'jwt': {
+            const role = core.getInput('role', { required: true });
+            const privateKeyRaw = core.getInput('jwtPrivateKey', { required: true });
+            const privateKey = Buffer.from(privateKeyRaw, 'base64').toString();
+            const keyPassword = core.getInput('jwtKeyPassword', { required: false });
+            const tokenTtl = core.getInput('jwtTtl', { required: false }) || '3600'; // 1 hour
+            const jwt = generateJwt(privateKey, keyPassword, Number(tokenTtl));
+            return await getClientToken(client, method, { jwt: jwt, role: role });
+        }
         default: {
             if (!method || method === 'token') {
                 return core.getInput('token', { required: true });
@@ -32,6 +42,32 @@ async function retrieveToken(method, client) {
     }
 }
 
+/***
+ * Generates signed Json Web Token with specified private key and ttl
+ * @param {string} privateKey
+ * @param {string} keyPassword
+ * @param {number} ttl
+ */
+function generateJwt(privateKey, keyPassword, ttl) {
+    const alg = 'RS256';
+    const header = { alg: alg, typ: 'JWT' };
+    const now = rsasign.KJUR.jws.IntDate.getNow();
+    const payload = {
+        iss: 'vault-action',
+        iat: now,
+        nbf: now,
+        exp: now + ttl,
+        event: process.env.GITHUB_EVENT_NAME,
+        workflow: process.env.GITHUB_WORKFLOW,
+        sha: process.env.GITHUB_SHA,
+        actor: process.env.GITHUB_ACTOR,
+        repository: process.env.GITHUB_REPOSITORY,
+        ref: process.env.GITHUB_REF
+    };
+    const decryptedKey = rsasign.KEYUTIL.getKey(privateKey, keyPassword);
+    return rsasign.KJUR.jws.JWS.sign(alg, JSON.stringify(header), JSON.stringify(payload), decryptedKey);
+}
+
 /***
  * Call the appropriate login endpoint and parse out the token in the response.
  * @param {import('got').Got} client

src/secrets.js

@@ -73,7 +73,7 @@ function selectData(data, selector) {
     }
 
     if (result.startsWith(`"`)) {
-        result = result.substring(1, result.length - 1);
+        result = JSON.parse(result);
     }
     return result;
 }