mirror of
https://github.com/fkie-cad/nvd-json-data-feeds.git
synced 2025-06-07 13:36:56 +00:00
55 lines
2.3 KiB
JSON
55 lines
2.3 KiB
JSON
|
{
|
||
|
|
"id": "CVE-2023-43632",
|
||
|
|
"sourceIdentifier": "cve@asrg.io",
|
||
|
|
"published": "2023-09-21T14:15:11.157",
|
||
|
|
"lastModified": "2023-09-21T14:15:11.157",
|
||
|
|
"vulnStatus": "Received",
|
||
|
|
"descriptions": [
|
||
|
|
{
|
||
|
|
"lang": "en",
|
||
|
|
"value": "\nAs noted in the \u201cVTPM.md\u201d file in the eve documentation, \u201cVTPM is a server listening on port\n8877 in EVE, exposing limited functionality of the TPM to the clients. \nVTPM allows clients to\nexecute tpm2-tools binaries from a list of hardcoded options\u201d\nThe communication with this server is done using protobuf, and the data is comprised of 2\nparts:\n\n1. Header\n\n2. Data\n\nWhen a connection is made, the server is waiting for 4 bytes of data, which will be the header,\nand these 4 bytes would be parsed as uint32 size of the actual data to come.\n\nThen, in the function \u201chandleRequest\u201d this size is then used in order to allocate a payload on\nthe stack for the incoming data.\n\nAs this payload is allocated on the stack, this will allow overflowing the stack size allocated for\nthe relevant process with freely controlled data.\n\n* An attacker can crash the system. \n* An attacker can gain control over the system, specifically on the \u201cvtpm_server\u201d process\nwhich has very high privileges.\n\n\n"
|
||
|
|
}
|
||
|
|
],
|
||
|
|
"metrics": {
|
||
|
|
"cvssMetricV31": [
|
||
|
|
{
|
||
|
|
"source": "cve@asrg.io",
|
||
|
|
"type": "Secondary",
|
||
|
|
"cvssData": {
|
||
|
|
"version": "3.1",
|
||
|
|
"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
|
||
|
|
"attackVector": "ADJACENT_NETWORK",
|
||
|
|
"attackComplexity": "LOW",
|
||
|
|
"privilegesRequired": "LOW",
|
||
|
|
"userInteraction": "NONE",
|
||
|
|
"scope": "CHANGED",
|
||
|
|
"confidentialityImpact": "HIGH",
|
||
|
|
"integrityImpact": "HIGH",
|
||
|
|
"availabilityImpact": "HIGH",
|
||
|
|
"baseScore": 9.0,
|
||
|
|
"baseSeverity": "CRITICAL"
|
||
|
|
},
|
||
|
|
"exploitabilityScore": 2.3,
|
||
|
|
"impactScore": 6.0
|
||
|
|
}
|
||
|
|
]
|
||
|
|
},
|
||
|
|
"weaknesses": [
|
||
|
|
{
|
||
|
|
"source": "cve@asrg.io",
|
||
|
|
"type": "Secondary",
|
||
|
|
"description": [
|
||
|
|
{
|
||
|
|
"lang": "en",
|
||
|
|
"value": "CWE-789"
|
||
|
|
}
|
||
|
|
]
|
||
|
|
}
|
||
|
|
],
|
||
|
|
"references": [
|
||
|
|
{
|
||
|
|
"url": "https://asrg.io/security-advisories/freely-allocate-buffer-on-the-stack-with-data-from-socket/",
|
||
|
|
"source": "cve@asrg.io"
|
||
|
|
}
|
||
|
|
]
|
||
|
|
}
|