file-disable-sshp-protocol: Disable SSH Protocol

漏洞描述

Using SSH Protocol 1 is insecure as it lacks strong encryption and integrity checks, making it vulnerable to man-in-the-middle attacks, session hijacking, and other exploits. It is recommended to use SSH Protocol 2 for enhanced security.

PoC代码[已公开]

id: file-disable-sshp-protocol

info:
  name: Disable SSH Protocol
  author: pussycat0x
  severity: unknown
  description: |
    Using SSH Protocol 1 is insecure as it lacks strong encryption and integrity checks, making it vulnerable to man-in-the-middle attacks, session hijacking, and other exploits. It is recommended to use SSH Protocol 2 for enhanced security.
  remediation: |
    Set Protocol 2 in /etc/ssh/sshd_config to disable SSH Protocol 1 and restart the SSH service.
  reference:
    - https://vishalraj82.medium.com/hardening-openssh-security-37f5d634015f
    - https://www.ktchost.com/blog/enable-ssh-protocol-2/
  metadata:
    verified: true
  tags: audit,config,file,ssh

file:
  - extensions:
      - all

    matchers-condition: and
    matchers:
      - type: word
        words:
          - "# This is the sshd server system-wide configuration file"

      - type: word
        words:
          - "Protocol 2"
        negative: true
# digest: 4b0a00483046022100df321d349e00834fe6ee106774d32184d6aeec1c921f5c7bbbe76fe436bbf86202210098eb1f0ac12461bbda59911610b7fec2f6a87c5f808390253ae4aa05b52a8012:922c64590222798bb761d5b6d8e72950

来源: https://github.com/projectdiscovery/nuclei-templates/blob/main/./file/audit/ssh/file-disable-ssh-protocol.yaml