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CVE
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CVE-2011-2395Date: (C)2011-06-08   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V2 Severity:
CVSS Score : 5.0
Exploit Score: 10.0
Impact Score: 2.9
 
CVSS V2 Metrics:
Access Vector: NETWORK
Access Complexity: LOW
Authentication: NONE
Confidentiality: NONE
Integrity: PARTIAL
Availability: NONE
  
Reference:
http://seclists.org/fulldisclosure/2011/May/446
SREASON-8271
ciscoios-nd-security-bypass(67940)

CPE    290
cpe:/o:cisco:ios:11.3xa
cpe:/o:cisco:ios:12.3ya
cpe:/o:cisco:ios:12.3yb
cpe:/o:cisco:ios:12.3yc
...
CWE    1
CWE-16

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