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| name = Cisco Systems VPN Client
| logo =
| screenshot = [[Image:vpnguiCisco Systems VPN Client screenshot.png|290px]]
| caption = Cisco VPN Client on [[Windows 7]].
| developer = [[Cisco Systems]]
| released =
| frequently updated =
| programming language =
| latest release version = {{Plainlist|
* '''Windows''' -: 5.0.07.0440<ref name="r5">[httphttps://www.cisco.com/web/software/282364316/47352/5.0.07.0440-rel-notes.txt VPN Client release notes]</ref> / {{release date and age|2011|3|15}}
* '''Mac OS XmacOS''' -: 4.9.01.0180<ref>[httphttps://www.cisco.com/cisco/software/release.html?mdfid=281940729&flowid=4465&softwareid=282364316&os=Mac%20OS Cisco VPN Client v4.x …... Mac OS]</ref> / {{release date and age|2009|02|05}}
}}
| latest release date = <!-- For the sake of formatting, just put dates above -->
| latest preview version = 4.9.01.0230 for Mac
| latest preview date = {{release date and age|2010|7|27}}
| operating system = [[Microsoft Windows|Windows]], [[Mac OS X]] 10.4]] and [[Mac OS X 10.5|10.5]], [[Solaris (operating system)|Solaris UltraSPARC]], [[Linux]] (Intel)<ref name="hp">{{cite web|url=httphttps://www.cisco.com/en/US/products/sw/secursw/ps2308/|title=VPN Client Homepage}}</ref>
| language = English
| genre = [[Virtual private network|VPN software]]
| license = [[Proprietary software|Proprietary]]
| size = {{Plainlist|
* '''x86''' -: 7.63 MB
* '''x64''' -: 4.78 MB
| website = [http://cisco.com/en/US/products/sw/secursw/ps2308/ cisco.com/en/US/products/sw/secursw/ps2308/]
}}
| website = {{URL|https://www.cisco.com/c/en/us/products/security/vpn-endpoint-security-clients/index.html}}
The '''Cisco Systems VPN Client''' was a software application for connecting to a [[virtual private network]]. The client makes remote resources of another network available in a secure way as if the user were connected directly to that "private" network.
}}
'''Cisco Systems VPN Client''' is a software application for connecting to [[virtual private network]]s based on [[Internet Key Exchange#IKEv1 phases|Internet Key Exchange version 1]].
InOn July 29, 2011, Cisco announced the end of life of the product. No further product updates were released after July 30, 2012, and support ceased inon July 29, 2014.<ref>http{{Cite web|url=https://www.cisco.com/c/en/us/products/collateral/security/vpn-client/end_of_life_c51-680819.html|title = Cisco Secure Products and Solutions}}</ref> AThe suggestedSupport migrationpage optionwith fordocumentation customerslinks iswas thetaken Ciscodown AnyConnecton SecureJuly Mobility30, Client2016, replaced with an Obsolete Status Notification.<ref>[http{{Cite web|url=https://www.cisco.com/c/en/USus/prod/collateral/vpndevc/ps5743support/ps5699web/ps2308obsolete/end_of_life_c51security-680819vpn-client.html|title End-of-Sale and= EndCisco-ofVPN-Life Announcement for the Cisco VPN Client]client}}</ref>
It was succeeded by [[Cisco AnyConnect Secure Mobility Client]].
==Installation==
The client is normally distributed with an executable installer and profile file(s), which contain all the necessary information to easily connect to a network.
==Availability and compatibility == ▼A .pcf (or [[profile configuration file]]) is used to configure the VPN client for connecting to the remote server.
The software is not free but is often installed on university and business computers in accordance with a site-license. As with most corporate licenses, administrators are allowed to freely distribute the software to users within their network.
The open-source [https://www.unix-ag.uni-kl.de/~massar/vpnc/ vpnc client] can connect to most VPNs supported by the official client.
==Compatibility==
VPN Client 4.9.01.0230 beta added support for Mac OS X 10.6.<ref>[httphttps://www.cisco.com/web/software/282364316/35919/4.9.1.0230-beta-rel-notes.txt Release Notes for VPN Client, Release 4.9.01.0230 Beta for Mac OS X]</ref> Stable version 4.9.01.0180 appears to lack that support; 4.9.00.0050 explicitly did ''not'' support versions of Mac OS X later than 10.5.<ref>[httphttps://www.cisco.com/en/US/docs/security/vpn_client/cisco_vpn_client/vpn_client49/release/notes/49client.pdf Release Notes for VPN Client, Release 4.9.00.0050 for Mac OS X, Revised: May 21, 2010, OL-11179-04]</ref>
VPN Client 5.0.07.0290 added support for 64-bit versions of Windows Vista and Windows 7.<ref>[httphttps://www.cisco.com/en/US/docs/security/vpn_client/cisco_vpn_client/vpn_client5007/release/notes/vpnclient5007.html#wp84047 Release Notes for Cisco VPN Client, Release 5.0.07.0290]</ref>
==Security==
The client uses [[profile configuration file]]s (.pcf) that store VPN passwords either [[Cryptographiccryptographic hash function|hashed]] with [[type 7]], or stored as [[cleartextplaintext]]. A vulnerability has been identified,<ref name="cSec">{{cite web|url=httphttps://www.cisco.com/en/US/tech/tk583/tk372/technologies_security_notice09186a0080215981.html|title=Cisco Security Notice: Cisco IPsec VPN Implementation Group Password Usage Vulnerability}}</ref> and those passwords can easily be decoded using software or online services.<ref>{{cite web|url=http://www.unix-ag.uni-kl.de/~massar/bin/cisco-decode|title=Cisco Systems VPN Client Group Password Decoder}}</ref> To work around these issues, network administrators are advised to use the Mutual Group Authentication feature, or use unique passwords (that aren't related to other important network passwords).<ref name="cSec"/>
==See also==
* [[Cisco ASA]], the product line that replaced Cisco VPN Concentrator on the server side
* [http://www.cisco.com/c/en/us/support/web/obsolete/security-vpn-client.html Cisco VPN Client - Obsolete Status Notification]
* [[Virtual private network]]
* [[Internet privacy]]
* [[Cisco Systems]]
==References==
[[Category:Computer network security]]
[[Category:Tunneling protocols]]
[[Category:Cisco productssoftware|VPN Client]]
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