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CVE-2022-26143· CWE-306

Mitel MiCollab - Information Disclosure & Denial of Service

Exploited in the wild. Listed by CISA on 2022-03-25; known to be used by ransomware.

criticalseverity
9.8CVSS score
87.3%likelihood of exploitation, next 30 days
100%of all CVEs are less likely
Readycheck to confirm it

Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 contain a vulnerability in the TP-240 component caused by improper handling, letting remote attackers obtain sensitive information and cause denial of service, exploit requires remote access.

Impact

Attackers can retrieve sensitive information and cause performance degradation or denial of service, including DDoS attacks.

Fix

Update to version 9.4 SP1 FP1 or later for MiCollab, and latest version for MiVoice Business Express.

How to confirm it

Send: GET /ucs/micollab/version.json
Positive when: status_code == 200 and contains(body, "\"version\":") and compare_versions(version, "< 9.4.0")

Run it with nuclei: nuclei -id CVE-2022-26143 -u <target>

The full check
id: CVE-2022-26143

info:
  name: Mitel MiCollab - Information Disclosure & Denial of Service
  author: theamanrawat
  severity: critical
  description: |
    Mitel MiCollab before 9.4 SP1 FP1 and MiVoice Business Express through 8.1 contain a vulnerability in the TP-240 component caused by improper handling, letting remote attackers obtain sensitive information and cause denial of service, exploit requires remote access.
  impact: |
    Attackers can retrieve sensitive information and cause performance degradation or denial of service, including DDoS attacks.
  remediation: |
    Update to version 9.4 SP1 FP1 or later for MiCollab, and latest version for MiVoice Business Express.
  reference:
    - https://nvd.nist.gov/vuln/detail/CVE-2022-26143
  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-2022-26143
    epss-score: 0.87325
    epss-percentile: 0.99755
    cwe-id: CWE-306
    cpe: cpe:2.3:a:mitel:micollab:9.4:-:*:*:*:-:*:*
  metadata:
    verified: true
    shodan-query: html:"MiCollab End User Portal"
    max-request: 1
  tags: cve,cve2022,mitel,micollab,kev,passive,vkev,vuln

http:
  - raw:
      - |
        GET /ucs/micollab/version.json HTTP/1.1
        Host: {{Hostname}}

    matchers:
      - type: dsl
        dsl:
          - 'status_code == 200'
          - 'contains(body, "\"version\":")'
          - 'compare_versions(version, "< 9.4.0")'
        condition: and

    extractors:
      - type: json
        name: version
        json:
          - '.version'

References

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