Vulnerability CVE-2016-9111
Published: 2016-11-07

Description:
Incorrect access control mechanisms in Citrix Receiver Desktop Lock 4.5 allow an attacker to bypass the authentication requirement by leveraging physical access to a VDI for temporary disconnection of a LAN cable. NOTE: as of 20161208, the vendor could not reproduce the issue, stating "the researcher was unable to provide us with information that would allow us to confirm the behaviour and, despite extensive investigation on test deployments of supported products, we were unable to reproduce the behaviour as he described. The researcher has also, despite additional requests for information, ceased to respond to us."

See advisories in our WLB2 database:
Topic
Author
Date
High
Citrix Receiver / Receiver Desktop Lock 4.5 Authentication Bypass
Rithwik Jayasimh...
03.11.2016

CVSS2 => (AV:L/AC:L/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.6/10
6.4/10
3.9/10
Exploit range
Attack complexity
Authentication
Local
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Citrix -> Receiver desktop 

 References:
http://securitytracker.com/id/1037176
http://www.securityfocus.com/bid/94229
https://packetstormsecurity.com/files/139493/Citrix-Receiver-Receiver-Desktop-Lock-4.5-Authentication-Bypass.html
https://vuldb.com/?id.93250
https://www.exploit-db.com/exploits/40686/
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