CVE-2021-31642
published 2021-06-01CVE-2021-31642: A denial of service condition exists after an integer overflow in several IoT devices from CHIYU Technology, including BIOSENSE, Webpass, and BF-630, BF-631…
PriorityP354medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EXPLOIT
EPSS
43.67%
98.6th percentile
A denial of service condition exists after an integer overflow in several IoT devices from CHIYU Technology, including BIOSENSE, Webpass, and BF-630, BF-631, and SEMAC. The vulnerability can be explored by sending an unexpected integer (> 32 bits) on the page parameter that will crash the web portal and making it unavailable until a reboot of the device.
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
nvdv2.06.8MEDIUMAV:N/AC:L/Au:S/C:N/I:N/A:C
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Suricata
ET EXPLOIT CHIYU IoT Devices - Denial of Service
suricata·2021-07-19
CVE-2021-31642 ET EXPLOIT CHIYU IoT Devices - Denial of Service
ET EXPLOIT CHIYU IoT Devices - Denial of Service
Rule: alert http $EXTERNAL_NET any -> $HOME_NET any (msg:"ET EXPLOIT CHIYU IoT Devices - Denial of Service"; flow:established,to_server; http.method; content:"GET"; http.uri; content:"/if.cgi?redirect=AccLog.htm"; startswith; content:"&type=go_log_page&page=2781000"; endswith; fast_pattern; http.referer; content:"/AccLog.htm"; endswith; reference:cve,2021-31642; reference:url,www.exploit-db.com/exploits/49937; classtype:denial-of-service; sid:2033362; rev:2; metadata:affected_product IoT, attack_target Client_Endpoint, created_at 2021_07_19, cve CVE_2021_31642, deployment Perimeter, confidence Medium, signature_severity Major, tag Description_Generated_By_Proofpoint_Nexus, updated_at 2021_07_19;)
No writeups or analysis indexed.
http://packetstormsecurity.com/files/162934/CHIYU-IoT-Denial-Of-Service.htmlhttps://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31642https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/https://www.chiyu-tech.com/msg/message-Firmware-update-87.htmlhttp://packetstormsecurity.com/files/162934/CHIYU-IoT-Denial-Of-Service.htmlhttps://gitbook.seguranca-informatica.pt/cve-and-exploits/cves/chiyu-iot-devices#cve-2021-31642https://seguranca-informatica.pt/dancing-in-the-iot-chiyu-devices-vulnerable-to-remote-attacks/https://www.chiyu-tech.com/msg/message-Firmware-update-87.html
2021-06-01
Published