191 lines
8.8 KiB
JSON
191 lines
8.8 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1",
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"cveMetadata": {
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"cveId": "CVE-2023-43632",
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"assignerOrgId": "c15abc07-96a9-4d11-a503-5d621bfe42ba",
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"state": "PUBLISHED",
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"assignerShortName": "ASRG",
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"dateReserved": "2023-09-20T14:34:14.874Z",
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"datePublished": "2023-09-21T13:13:30.579Z",
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"dateUpdated": "2024-09-24T17:09:26.069Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unaffected",
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"packageName": "EVE OS",
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"product": "EVE OS",
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"programFiles": [
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"https://github.com/lf-edge/eve/tree/master/pkg/vtpm/src/server.cpp"
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],
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"repo": "https://github.com/lf-edge/eve",
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"vendor": " LF-Edge, Zededa",
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"versions": [
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{
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"lessThan": "9.5.0",
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"status": "affected",
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"version": "3.0.0",
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"versionType": "release"
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}
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]
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"user": "00000000-0000-4000-9000-000000000000",
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"value": "Ilay Levi"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "\n\nAs noted in the “VTPM.md” file in the eve documentation, “VTPM is a server listening on port\n8877 in EVE, exposing limited functionality of the TPM to the clients. <br>VTPM allows clients to\nexecute tpm2-tools binaries from a list of hardcoded options”\nThe communication with this server is done using protobuf, and the data is comprised of 2\nparts:\n<br>1. Header\n<br>2. Data\n<br>When 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<br>Then, in the function “handleRequest” this size is then used in order to allocate a payload on\nthe stack for the incoming data.\n<br>As this payload is allocated on the stack, this will allow overflowing the stack size allocated for\nthe relevant process with freely controlled data.<br><br>* An attacker can crash the system. <br>* An attacker can gain control over the system, specifically on the “vtpm_server” process\nwhich has very high privileges.\n\n<br>"
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}
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],
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"value": "\nAs noted in the “VTPM.md” file in the eve documentation, “VTPM 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”\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 “handleRequest” 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 “vtpm_server” process\nwhich has very high privileges.\n\n\n"
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-100",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-100 Overflow Buffers"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "ADJACENT_NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 9,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
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"version": "3.1"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-789",
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"description": "CWE-789 Memory Allocation with Excessive Size Value",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "c15abc07-96a9-4d11-a503-5d621bfe42ba",
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"shortName": "ASRG",
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"dateUpdated": "2023-09-28T05:40:23.793Z"
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},
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"references": [
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{
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"url": "https://asrg.io/security-advisories/cve-2023-43632/"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"title": "Freely Allocate Buffer on The Stack With Data From Socket",
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"x_generator": {
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"engine": "Vulnogram 0.1.0-dev"
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}
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},
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"adp": [
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{
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2024-08-02T19:44:43.555Z"
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},
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://asrg.io/security-advisories/cve-2023-43632/",
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"tags": [
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"x_transferred"
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]
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}
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]
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},
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{
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"affected": [
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{
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"vendor": "lfedge",
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"product": "eve",
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"cpes": [
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"cpe:2.3:o:lfedge:eve:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unknown",
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"versions": [
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{
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"version": "3.0.0",
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"status": "affected",
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"lessThan": "9.5.0",
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"versionType": "custom"
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}
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2024-09-24T17:07:47.768091Z",
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"id": "CVE-2023-43632",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2024-09-24T17:09:26.069Z"
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}
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}
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]
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}
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} |