Vulnerability CVE-2011-2395


Published: 2011-06-08   Modified: 2012-02-13

Description:
The Neighbor Discovery (ND) protocol implementation in Cisco IOS on unspecified switches allows remote attackers to bypass the Router Advertisement Guarding functionality via a fragmented IPv6 packet in which the Router Advertisement (RA) message is contained in the second fragment, as demonstrated by (1) a packet in which the first fragment contains a long Destination Options extension header or (2) a packet in which the first fragment contains an ICMPv6 Echo Request message.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Cisco\'s ICMPv6 Router Advertisement Guard feature bypass
Marc Heuse
09.06.2011

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:P/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
None
Partial
None
Affected software
Cisco -> IOS 

 References:
http://seclists.org/fulldisclosure/2011/May/446
http://securityreason.com/securityalert/8271
https://exchange.xforce.ibmcloud.com/vulnerabilities/67940

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