Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Cisco | Ios | 4.1 |
Related Weaknesses (CWE)
References
- http://seclists.org/fulldisclosure/2011/May/446
- http://securityreason.com/securityalert/8271
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67940
- http://seclists.org/fulldisclosure/2011/May/446
- http://securityreason.com/securityalert/8271
- https://exchange.xforce.ibmcloud.com/vulnerabilities/67940
FAQ
What is CVE-2011-2395?
CVE-2011-2395 is a vulnerability with a CVSS score of 5.0 (MEDIUM). 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 ...
How severe is CVE-2011-2395?
CVE-2011-2395 has been rated MEDIUM with a CVSS base score of 5.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-2395?
Check the references section above for vendor advisories and patch information. Affected products include: Cisco Ios.