Zoho ManageEngine ServiceDesk Plus - Remote Code Execution

Exploited in the wild. Listed by CISA on 2021-12-01; known to be used by ransomware.

criticalseverity

9.8CVSS score

93.5%likelihood of exploitation, next 30 days

100%of all CVEs are less likely

Readycheck to confirm it

Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution.

Impact

Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.

Fix

Apply the latest security patch or upgrade to a patched version of Zoho ManageEngine ServiceDesk Plus.

How to confirm it

Send: GET {{BaseURL}}/RestAPI/ImportTechnicians
Positive when: contains "<form name=\"ImportTechnicians\"" AND status 200

Run it with nuclei: nuclei -id CVE-2021-44077 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2021-44077

info:
  name: Zoho ManageEngine ServiceDesk Plus - Remote Code Execution
  author: Adam Crosser,gy741
  severity: critical
  description: Zoho ManageEngine ServiceDesk Plus before 11306, ServiceDesk Plus MSP before 10530, and SupportCenter Plus before 11014 are vulnerable to unauthenticated remote code execution.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.
  remediation: |
    Apply the latest security patch or upgrade to a patched version of Zoho ManageEngine ServiceDesk Plus.
  reference:
    - https://www.cisa.gov/uscert/ncas/alerts/aa21-336a
    - https://unit42.paloaltonetworks.com/tiltedtemple-manageengine-servicedesk-plus/
    - https://github.com/horizon3ai/CVE-2021-44077
    - https://github.com/rapid7/metasploit-framework/blob/master/modules/exploits/windows/http/manageengine_servicedesk_plus_cve_2021_44077.rb
    - https://nvd.nist.gov/vuln/detail/CVE-2021-44077
  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-2021-44077
    cwe-id: CWE-306
    epss-score: 0.93514
    epss-percentile: 0.99841
    cpe: cpe:2.3:a:zohocorp:manageengine_servicedesk_plus:11.1:11138:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: zohocorp
    product: manageengine_servicedesk_plus
    shodan-query: http.title:"manageengine servicedesk plus"
    fofa-query: title="manageengine servicedesk plus"
    google-query: intitle:"manageengine servicedesk plus"
  tags: cve2021,cve,rce,kev,msf,zoho,manageengine,zohocorp,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/RestAPI/ImportTechnicians"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - '<form name="ImportTechnicians"'

      - type: status
        status:
          - 200

References

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