CISSP Exam Note (Telecommunications and Networking Security Domain) – LAN Media Access Methods
April 2, 2010 · Posted in Don's eBook Report, IT Docs, InfoSec Docs, Information Security, Information Technology, eBooks, etc... · Comment
LAN Media Access Methods
- Physical & Data Link Layers
- Controls the use of a network
Ethernet 802.3
- Uses CSMA/CD
- Designed for sporadic traffic
- Defines a bus topology with 3 different cabling standards:
- Thinnet (10Base2) – coax with segments up to 185 meters
- Thicknet (10Base5) – coax with segments up to 500 meters
- Unshielded Twisted Pair (UTP) – all devices connected to a hub or a switch
CISSP Exam Note (Telecommunications and Networking Security Domain) – Data Networking Technologies
March 29, 2010 · Posted in Don's eBook Report, InfoSec Docs, Information Security, Information Systems, Information Technology, Internet Docs, eBooks, etc... · Comment
LAN Cabling Types
Twisted Pair Cable
- Relatively slow speed
- Two insulated wires can be shielded (STP0 or unshielded (UTP)
- UTP is four-pair medium and comes in several categories
- UTP can be easily tapped by eavesdroppers than the other cable types
- Category based on how tightly wound the wires are, the tighter the wind the higher the rating and the higher the resistance to interference
- Cat 1 UTP – was used for telephone lines, not good for data
- Cat 2 UTP – up to 4 MBps
- Cat 3 UTP – Used for 10BaseT networks up to 10 MBps
- Cat 4 UTP – Used in Token Ring Networks up to 16 MBps
- Cat 5 – Current UTP standard for new installations up to 100MBps
- Cat 6 UTP – up to 155MBps
- Cat 7 UTP – up to 1 GBps
You may also want to consider these CISSP resources from Amazon.com
CISSP Exam Note (Domain 2: Telecommunications and Networking Security) – Common Back-up Problems
Common Backup Problems
- Slow transfer of data to back-up
- Retrieval time to restore
- Off-hour processing and monitoring
- Server disk space expands over time
- Loss of data between last back-up
- Physical security of tapes Read more
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- From the National Vulnerability Database
- CVE-2011-4872 (desire_hd, desire_s, droid_incredible, evo_3d, evo_4g, glacier, sensation_4g, sen...) February 4, 2012Multiple HTC Android devices including Desire HD FRG83D and GRI40, Glacier FRG83, Droid Incredible FRF91, Thunderbolt 4G FRG83D, Sensation Z710e GRI40, Sensation 4G GRI40, Desire S GRI40, EVO 3D GRI40, and EVO 4G GRI40 allow remote attackers to obtain 802.1X Wi-Fi credentials and SSID via a crafted application that uses the android.permission.ACCESS_WIFI_STA […]nvd@nist.gov
- CVE-2011-4512 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012CRLF injection vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary HTTP headers and conduct HT […]nvd@nist.gov
- CVE-2011-4879 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not properly handle URIs beginning with a 0xfa character, which allows remote attac […]nvd@nist.gov
- CVE-2011-4514 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012The TELNET daemon in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime does not perform authentication, which makes it easier for remote attackers to obtain access via a TCP session. […]nvd@nist.gov
- CVE-2011-4510 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012Cross-site scripting (XSS) vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary web script or H […]nvd@nist.gov
- CVE-2011-4878 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012Directory traversal vulnerability in miniweb.exe in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to read arbitrary files via […]nvd@nist.gov
- CVE-2011-4877 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime, when Transfer Mode is enabled, allows remote attackers to cause a denial of service (application crash) by sending crafted […]nvd@nist.gov
- CVE-2011-4513 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allow user-assisted remote attackers to execute arbitrary code via a crafted project file, related to the HMI web server and runtime loader. […]nvd@nist.gov
- CVE-2011-4876 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012Directory traversal vulnerability in HmiLoad in the runtime loader in Siemens WinCC flexible 2004, 2005, 2007, and 2008; WinCC V11 (aka TIA portal); the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime, when Transfer Mode is enabled, allows remote attackers to execute, read, create, modi […]nvd@nist.gov
- CVE-2011-4511 (wincc_flexible, simatic_hmi_panels, wincc_runtime_advanced, wincc_flexible_runtime) February 2, 2012Cross-site scripting (XSS) vulnerability in the HMI web server in Siemens WinCC flexible 2004, 2005, 2007, and 2008 before SP3; WinCC V11 (aka TIA portal) before SP2 Update 1; the TP, OP, MP, Comfort Panels, and Mobile Panels SIMATIC HMI panels; WinCC V11 Runtime Advanced; and WinCC flexible Runtime allows remote attackers to inject arbitrary web script or H […]nvd@nist.gov
- CVE-2011-4872 (desire_hd, desire_s, droid_incredible, evo_3d, evo_4g, glacier, sensation_4g, sen...) February 4, 2012