Overview
- Description
- KASAGO TCP/IP stack provided by Zuken Elmic generates ISNs(Initial Sequence Number) for TCP connections from an insufficiently random source. An attacker may be able to determine the ISN of the current or future TCP connections and either hijack existing ones or spoof future ones.
- Source
- vultures@jpcert.or.jp
- NVD status
- Analyzed
Risk scores
CVSS 3.1
- Type
- Primary
- Base score
- 9.1
- Impact score
- 5.2
- Exploitability score
- 3.9
- Vector string
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- Severity
- CRITICAL
Social media
- Hype score
- Not currently trending
Configurations
[
{
"nodes": [
{
"negate": false,
"cpeMatch": [
{
"criteria": "cpe:2.3:a:elwsc:kasago_ipv4:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "E438EA09-9BEF-4152-B95A-B3E0DF1EE807",
"versionEndExcluding": "6.0.1.34"
},
{
"criteria": "cpe:2.3:a:elwsc:kasago_ipv4_light:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "65A36EBB-9FB9-402B-8105-E98C180EC7D2",
"versionEndExcluding": "6.0.1.34"
},
{
"criteria": "cpe:2.3:a:elwsc:kasago_ipv6\\/v4_dual:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "00163C20-1C59-4E42-A17F-8B7EC88ADAEE",
"versionEndExcluding": "6.0.1.34"
},
{
"criteria": "cpe:2.3:a:elwsc:kasago_mobile_ipv6:*:*:*:*:*:*:*:*",
"vulnerable": true,
"matchCriteriaId": "7FF16ECE-88FD-4350-88CF-4634D802C30D",
"versionEndExcluding": "6.0.1.34"
}
],
"operator": "OR"
}
]
}
]