Overview
- Description
- The Flex-VPN load-balancing feature in the ipsec-ikev2 implementation in Cisco IOS before 15.1(1)SY3 does not require authentication, which allows remote attackers to trigger the forwarding of VPN traffic to an attacker-controlled destination, or the discarding of this traffic, by arranging for an arbitrary device to become a cluster member, aka Bug ID CSCub93641.
- Source
- ykramarz@cisco.com
- NVD status
- Analyzed
Risk scores
CVSS 2.0
- Type
- Primary
- Base score
- 6.4
- Impact score
- 4.9
- Exploitability score
- 10
- Vector string
- AV:N/AC:L/Au:N/C:N/I:P/A:P
Weaknesses
- nvd@nist.gov
- CWE-287
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:o:cisco:ios:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "6A9ED0E7-8A20-466D-BAD4-E7C3484F06A2",
"versionEndIncluding": "15.1\\(1\\)sy2"
},
{
"criteria": "cpe:2.3:o:cisco:ios:15.1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "EB41294E-F3DF-4F1E-A4C8-E90B21A88836"
},
{
"criteria": "cpe:2.3:o:cisco:ios:15.1\\(1\\)sy:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "5AD483E0-66F9-4DD1-85FA-C125C9617E10"
},
{
"criteria": "cpe:2.3:o:cisco:ios:15.1\\(1\\)sy1:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "35C1075B-11F3-453C-957D-834C5D6D8CB1"
}
],
"operator": "OR"
}
]
}
]