ghsa-53pq-r3c7-x97x
Vulnerability from github
Published
2022-05-24 17:44
Modified
2023-10-10 18:31
Severity
Details
In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has constant increments. An attacker could predict and hijack TCP sessions.
{
"affected": [],
"aliases": [
"CVE-2020-27632"
],
"database_specific": {
"cwe_ids": [],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-03-10T18:15:00Z",
"severity": "HIGH"
},
"details": "In SIMATIC MV400 family versions prior to v7.0.6, the ISN generator is initialized with a constant value and has constant increments. An attacker could predict and hijack TCP sessions.",
"id": "GHSA-53pq-r3c7-x97x",
"modified": "2023-10-10T18:31:31Z",
"published": "2022-05-24T17:44:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-27632"
},
{
"type": "WEB",
"url": "https://cert-portal.siemens.com/productcert/pdf/ssa-599268.pdf"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-21-042-01"
},
{
"type": "WEB",
"url": "https://www.forescout.com/resources/numberjack-weak-isn-generation-in-embedded-tcpip-stacks"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
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