Materialized exploit

CVE-2025-46817

HIGH

1 public exploit(s) for this CVE, 1 materialized with their code.

For defensive research only. Only test on systems you own or have written authorization for. Unauthorized access is illegal.

Nuclei critical Verified

Source

Redis < 8.2.1 lua script - Integer Overflow

By projectdiscovery

How to test this exploit

The Nuclei template IS the test: an executable detection rule. Install nuclei, then run it against a target you control.

nuclei -id CVE-2025-46817 -u https://your-target

Template yaml

id: CVE-2025-46817

info:
  name: Redis < 8.2.1 lua script - Integer Overflow
  author: pussycat0x
  severity: critical
  description: |
    Redis is an open source, in-memory database that persists on disk. Versions 8.2.1 and below allow an authenticated user to use a specially crafted Lua script to cause an integer overflow and potentially lead to remote code execution The problem exists in all versions of Redis with Lua scripting. This issue is fixed in version 8.2.2.
  impact: |
    Authenticated users can execute arbitrary code remotely, potentially compromising the entire system.
  remediation: |
    Update to version 8.2.2 or later.
  reference:
    - https://github.com/dwisiswant0/CVE-2025-46817/blob/master/README.md
  metadata:
    verified: true
    max-request: 1
    shodan-query: product:"redis"
  tags: cve,cve2025,js,redis,network,passive,authenticated,vuln

flow: javascript(1) && javascript(2)

javascript:
  - pre-condition: |
      isPortOpen(Host,Port);

    code: |
      const redis = require('nuclei/redis');
      const info = redis.GetServerInfo(Host,Port);
      Export(info);

    args:
      Host: "{{Host}}"
      Port: "6379"

    matchers:
      - type: dsl
        dsl:
          - success == true
          - compare_versions(version, ' <= 8.2.1')
        condition: and

    extractors:
      - type: regex
        name: version
        part: response
        group: 1
        regex:
          - redis_version:(\d+\.\d+\.\d+)

  - code: |
      const redis = require('nuclei/redis');
      const info = redis.RunLuaScript(Host,Port,Password,Payload);
      Export(info);

    args:
      Host: "{{Host}}"
      Port: "6379"
      Password: "{{passwords}}"
      Payload: 'return "lua enabled"'

    payloads:
      passwords:
        - ""

    matchers:
      - type: dsl
        dsl:
          - success == true
          - contains(response, 'lua enabled')
        condition: and
        internal: true
# digest: 490a004630440220080a6659d3227d58a0fa8dc7bd43125de8a2e35e2495dc3333d2a4bbfd52eaca02203e7ef01f288abeef90e8fbef910a07079b3e259c88d44adb9e89e2a27f4783a2:922c64590222798bb761d5b6d8e72950