id: CVE-2021-44848
info:
name: Thinfinity VirtualUI User Enumeration
author: danielmofer
severity: medium
description: Thinfinity VirtualUI (before v3.0), /changePassword returns different responses for requests depending on whether the username exists. It may enumerate OS users (Administrator, Guest, etc.)
impact: |
An attacker can use the gathered usernames for further attacks, such as brute-forcing passwords or launching targeted phishing campaigns.
remediation: |
Apply the vendor-supplied patch or upgrade to the latest version of Thinfinity VirtualUI to mitigate the user enumeration vulnerability.
reference:
- https://github.com/cybelesoft/virtualui/issues/1
- https://nvd.nist.gov/vuln/detail/CVE-2021-44848
- https://www.tenable.com/cve/CVE-2021-44848
- http://packetstormsecurity.com/files/165327/Cibele-Thinfinity-VirtualUI-2.5.41.0-User-Enumeration.html
- https://github.com/ARPSyndicate/cvemon
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-2021-44848
cwe-id: CWE-203
epss-score: 0.02038
epss-percentile: 0.8871
cpe: cpe:2.3:a:cybelesoft:thinfinity_virtualui:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: cybelesoft
product: thinfinity_virtualui
shodan-query: http.title:"thinfinity virtualui"
fofa-query: title="thinfinity virtualui"
google-query: intitle:"thinfinity virtualui"
tags: cve2021,cve,exposure,thinfinity,packetstorm,virtualui,tenable,cybelesoft
http:
- raw:
- |
GET /changePassword?username=administrator HTTP/1.1
Host: {{Hostname}}
matchers-condition: and
matchers:
- type: regex
part: body
regex:
- '"rc":(.*?)'
- '"msg":"(.*?)"'
condition: and
- type: status
status:
- 200
# digest: 490a0046304402206f57ba66b5efa0d02b663aacc3cc75a860926d701b4dced4cb98484fe18728af02205b06b852f41886fed8171fbdbf43e4f4114eb6fb07688bde3f77d996a3da78b7:922c64590222798bb761d5b6d8e72950
