Vulnerability CVE-2014-3309
Published: 2014-07-09

Description:
The NTP implementation in Cisco IOS and IOS XE does not properly support use of the access-group command for a "deny all" configuration, which allows remote attackers to bypass intended restrictions on time synchronization via a standard query, aka Bug ID CSCuj66318.

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Cisco -> IOS 
Cisco -> Ios xe 

 References:
http://xforce.iss.net/xforce/xfdb/94420
http://www.securitytracker.com/id/1030549
http://www.securityfocus.com/bid/68463
http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2014-3309
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