Search criteria
1 vulnerability by elwsc
CVE-2022-43501 (GCVE-0-2022-43501)
Vulnerability from cvelistv5 – Published: 2023-02-10 00:00 – Updated: 2025-03-24 18:11
VLAI
Summary
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.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-330 - Use of Insufficiently Random Values
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://www.elwsc.co.jp/news/6352 | |
| https://jvn.jp/en/vu/JVNVU99551468/ | third-party-advisory |
Impacted products
4 products
| Vendor | Product | Version | |
|---|---|---|---|
| ZUKEN Elmic | Kasago IPv6/v4 Dual |
Affected:
prior to Ver6.0.1.34
|
|
| ZUKEN Elmic | Kasago IPv4 |
Affected:
prior to Ver6.0.1.34
|
|
| ZUKEN Elmic | Kasago IPv4 Light |
Affected:
prior to Ver6.0.1.34
|
|
| ZUKEN Elmic | Kasago mobile IPv6 |
Affected:
prior to Ver6.0.1.34
|
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T13:32:59.196Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_transferred"
],
"url": "https://www.elwsc.co.jp/news/6352"
},
{
"name": "Zuken Elmic KASAGO uses insufficient random values for TCP Initial Sequence Numbers",
"tags": [
"third-party-advisory",
"x_transferred"
],
"url": "https://jvn.jp/en/vu/JVNVU99551468/"
}
],
"title": "CVE Program Container"
},
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 9.1,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2022-43501",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2025-03-24T18:11:00.523781Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2025-03-24T18:11:03.974Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Kasago IPv6/v4 Dual",
"vendor": "ZUKEN Elmic",
"versions": [
{
"status": "affected",
"version": "prior to Ver6.0.1.34"
}
]
},
{
"product": "Kasago IPv4",
"vendor": "ZUKEN Elmic",
"versions": [
{
"status": "affected",
"version": "prior to Ver6.0.1.34"
}
]
},
{
"product": "Kasago IPv4 Light",
"vendor": "ZUKEN Elmic",
"versions": [
{
"status": "affected",
"version": "prior to Ver6.0.1.34"
}
]
},
{
"product": "Kasago mobile IPv6",
"vendor": "ZUKEN Elmic",
"versions": [
{
"status": "affected",
"version": "prior to Ver6.0.1.34"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "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."
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-330",
"description": "CWE-330: Use of Insufficiently Random Values",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-02-10T00:00:00.000Z",
"orgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"shortName": "jpcert"
},
"references": [
{
"url": "https://www.elwsc.co.jp/news/6352"
},
{
"name": "Zuken Elmic KASAGO uses insufficient random values for TCP Initial Sequence Numbers",
"tags": [
"third-party-advisory"
],
"url": "https://jvn.jp/en/vu/JVNVU99551468/"
}
]
}
},
"cveMetadata": {
"assignerOrgId": "ede6fdc4-6654-4307-a26d-3331c018e2ce",
"assignerShortName": "jpcert",
"cveId": "CVE-2022-43501",
"datePublished": "2023-02-10T00:00:00.000Z",
"dateReserved": "2022-12-09T00:00:00.000Z",
"dateUpdated": "2025-03-24T18:11:03.974Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}