Citrix Presentation Server ICA protocol weak security
| citrix-presentationserver-ica-weak-security (42444) |  Low Risk |
Description:
Citrix Presentation Server could provide weaker than expected security, caused be an error in the ICA protocol. The SecureICA and ICA Basic encryption methods could allow connections using lower than minimum configured encryption settings. An attacker could exploit this vulnerability to launch further attacks against the system.
Platforms Affected:
- Citrix, Access Essentials 1.0
- Citrix, Access Essentials 1.5
- Citrix, Access Essentials 2.0
- Citrix, Desktop Server 1.0
- Citrix, MetaFrame Presentation Server 3.0
- Citrix, MetaFrame Presentation Server 4.0
- Citrix, Presentation Server 4.0
- Citrix, Presentation Server 4.5
Remedy:
Refer to CTX114893 for patch, upgrade or suggested workaround information. See References.
Consequences:
Other
References:
- CTX114893, Vulnerability in Citrix Presentation Server could result in cryptographic settings not being correctly enforced at http://support.citrix.com/article/CTX114893.
- BID-29233: Citrix Presentation Server ICA Protocol Weak Encryption Vulnerability
- CVE-2008-2299: Unspecified vulnerability in SecureICA and ICA Basic encryption of Citrix Presentation Server 4.5 and earlier, Access Essentials 2.0 and earlier, and Desktop Server 1.0 can cause clients to use weaker encryption settings than configured by the administrator, which might allow attackers to bypass intended restrictions.
- FrSIRT/ADV-2008-1531: Citrix Presentation Server Cryptographic Settings Bypass Issue
- SA30271: Citrix Presentation Server Weakness and Unauthorised Access
- SECTRACK ID: 1020026: Citrix Presentation Server May Use a Weaker Encryption Algorithm
Reported:
May 12, 2008
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
Copyright (c) 1994-2008 Internet Security Systems, Inc. All rights reserved worldwide.
For corrections or additions please email xforce@iss.net