CVE-2011-2395
Medium
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.
SeverityMedium
CVSS5.0
Exploit probability—
Product
Cisco Ios
PublishedJun 9, 2011
First seenJun 9, 2011
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| cisco ios | 4.1, 4.1.1, 4.1.2, 8.2, 8.3, 9.0, 9.1, 9.14, 10.0, 10.3, 10.3\(3.3\), 10.3\(3.4\), 10.3\(4.2\), 10.3\(4.3\), 10.3\(16\), 10.3\(19a\), 11, 11.0, 11.0\(12\), 11.0\(17\), 11.0\(17\)bt, 11.0\(18\), 11.0\(20.3\), 11.0\(22a\), 11.0\(22b\), 11.0\(x\), 11.0.12\(a\)bt, 11.1, 11.1\(5\), 11.1\(7\), 11.1\(7\)aa, 11.1\(7\)ca, 11.1\(9\)ia, 11.1\(11\), 11.1\(12\), 11.1\(13\), 11.1\(13\)aa, 11.1\(13\)ca, 11.1\(13\)ia, 11.1\(14\), 11.1\(15\), 11.1\(15\)aa, 11.1\(15\)ca, 11.1\(15\)ia, 11.1\(16\), 11.1\(16\)aa, 11.1\(16\)ia, 11.1\(17\), 11.1\(17\)cc, 11.1\(17\)ct, 11.1\(18\), 11.1\(20\)aa4, 11.1\(22\), 11.1\(24\), 11.1\(24a\), 11.1\(24b\), 11.1\(24c\), 11.1\(28a\)ct, 11.1\(28a\)ia, 11.1\(36\)ca2, 11.1\(36\)ca4, 11.1\(36\)cc2, 11.1\(36\)cc4, 11.1aa, 11.1ca, 11.1cc, 11.1ct, 11.1ia, 11.2, 11.2\(4\), 11.2\(4\)f, 11.2\(4\)f1, 11.2\(4\)xa, 11.2\(4\)xaf, 11.2\(8\), 11.2\(8\)p, 11.2\(8\)sa1, 11.2\(8\)sa3, 11.2\(8\)sa5, 11.2\(8.2\)sa6, 11.2\(8.9\)sa6, 11.2\(9\)p, 11.2\(9\)xa, 11.2\(10\), 11.2\(10\)bc, 11.2\(11\), 11.2\(11b\)t2, 11.2\(14\)gs2, 11.2\(15\)g, 11.2\(15a\)p, 11.2\(15b\), 11.2\(16\), 11.2\(16\)p, 11.2\(17\), 11.2\(18\), 11.2\(19\)gs0.2, 11.2\(19a\)gs6, 11.2\(23a\)bc1, 11.2\(26\)p2, 11.2\(26\)p5, 11.2\(26a\), 11.2\(26b\), 11.2\(26e\), 11.2bc, 11.2f, 11.2gs, 11.2p, 11.2sa, 11.2wa3, 11.2wa4, 11.2xa, 11.3, 11.3\(1\), 11.3\(1\)ed, 11.3\(1\)t, 11.3\(2\)xa, 11.3\(7\)db1, 11.3\(8\)db2, 11.3\(8\)t1, 11.3\(11\)b, 11.3\(11b\), 11.3\(11b\)t2, 11.3\(11c\), 11.3\(11d\), 11.3aa, 11.3da, 11.3db, 11.3ha, 11.3ma, 11.3na, 11.3t, 11.3wa4, 11.3xa, 12.0, 12.0\(1\), 12.0\(1\)s, 12.0\(1\)st, 12.0\(1\)w, 12.0\(1\)xa3, 12.0\(1\)xb, 12.0\(1\)xe, 12.0\(2\), 12.0\(2\)xc, 12.0\(2\)xd, 12.0\(2\)xe, 12.0\(2\)xf, 12.0\(2\)xg, 12.0\(2a\), 12.0\(2b\), 12.0\(3\), 12.0\(3\)t2, 12.0\(3\)xe, 12.0\(3.2\), 12.0\(3.3\)s, 12.0\(3.4\)t, 12.0\(3.6\)w5\(9.0.5\), 12.0\(3d\), 12.0\(4\), 12.0\(4\)s, 12.0\(4\)t, 12.0\(4\)xe, 12.0\(4\)xe1, 12.0\(4\)xm, 12.0\(4\)xm1, 12.0\(5\), 12.0\(5\)s, 12.0\(5\)t, 12.0\(5\)t1, 12.0\(5\)t2, 12.0\(5\)wc, 12.0\(5\)wc2, 12.0\(5\)wc2b, 12.0\(5\)wc3, 12.0\(5\)wc3b, 12.0\(5\)wc5a, 12.0\(05\)wc8, 12.0\(5\)wc9, 12.0\(5\)wc9a, 12.0\(5\)wc11, 12.0\(5\)wc13, 12.0\(5\)wx, 12.0\(5\)xe, 12.0\(5\)xk, 12.0\(5\)xk2, 12.0\(5\)xn, 12.0\(5\)xn1, 12.0\(5\)xs, 12.0\(5\)xu, 12.0\(5\)yb4, 12.0\(5.1\)xp, 12.0\(5.2\)xu, 12.0\(5.3\)wc1, 12.0\(5.4\)wc1, 12.0\(5a\)e, 12.0\(6\), 12.0\(6b\), 12.0\(7\)db2, 12.0\(7\)dc1, 12.0\(7\)s1, 12.0\(7\)sc | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.