Dell iDRAC7/8 Devices - Remote Code Injection

criticalseverity

9.8CVSS score

90.1%likelihood of exploitation, next 30 days

100%of all CVEs are less likely

Readycheck to confirm it

Dell EMC iDRAC7/iDRAC8, versions prior to 2.52.52.52, contain a CGI injection vulnerability which could be used to execute remote code. A remote unauthenticated attacker may potentially be able to use CGI variables to execute remote code.

Impact

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

Fix

Apply the latest firmware updates provided by Dell to mitigate this vulnerability.

How to confirm it

Send: GET {{BaseURL}}/cgi-bin/login?LD_DEBUG=files
Positive when: contains in response "calling init: /lib/"

Run it with nuclei: nuclei -id CVE-2018-1207 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2018-1207

info:
  name: Dell iDRAC7/8 Devices - Remote Code Injection
  author: dwisiswant0
  severity: critical
  description: |
    Dell EMC iDRAC7/iDRAC8, versions prior to 2.52.52.52, contain a CGI injection vulnerability
    which could be used to execute remote code. A remote unauthenticated attacker may
    potentially be able to use CGI variables to execute remote code.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected device.
  remediation: |
    Apply the latest firmware updates provided by Dell to mitigate this vulnerability.
  reference:
    - https://downloads.dell.com/solutions/dell-management-solution-resources/iDRAC_CVE%201207_1211_1000116.pdf
    - https://github.com/KraudSecurity/Exploits/blob/master/CVE-2018-1207/CVE-2018-1207.py
    - https://nvd.nist.gov/vuln/detail/CVE-2018-1207
    - http://en.community.dell.com/techcenter/extras/m/white_papers/20485410
    - https://twitter.com/nicowaisman/status/977279766792466432
  classification:
    cvss-metrics: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2018-1207
    cwe-id: CWE-94
    epss-score: 0.90091
    epss-percentile: 0.99797
    cpe: cpe:2.3:a:dell:emc_idrac7:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: dell
    product: emc_idrac7
  tags: cve2018,cve,dell,injection,rce,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/cgi-bin/login?LD_DEBUG=files"

    matchers:
      - type: word
        part: response
        words:
          - "calling init: /lib/"

References

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