178 lines
7.5 KiB
JSON
178 lines
7.5 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-18636",
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"assignerOrgId": "9974b330-7714-4307-a722-5648477acda7",
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"state": "PUBLISHED",
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"assignerShortName": "rapid7",
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"dateReserved": "2026-08-03T10:21:25.241Z",
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"datePublished": "2026-08-11T14:40:12.322Z",
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"dateUpdated": "2026-08-11T19:43:56.379Z"
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},
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"containers": {
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"cna": {
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"providerMetadata": {
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"orgId": "9974b330-7714-4307-a722-5648477acda7",
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"shortName": "rapid7",
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"dateUpdated": "2026-08-11T14:40:12.322Z"
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},
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"title": "Velociraptor VFSGetBuffer API path deny list bypass",
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"cweId": "CWE-288",
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"description": "CWE-288 Authentication bypass using an alternate path or channel",
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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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"impacts": [
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{
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"capecId": "CAPEC-115",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-115 Authentication Bypass"
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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": "Rapid7",
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"product": "Velociraptor",
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"repo": "https://github.com/Velocidex/velociraptor/",
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"versions": [
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{
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"status": "affected",
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"version": "0",
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"lessThan": "0.77.2",
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"versionType": "semver"
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}
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],
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"defaultStatus": "unaffected"
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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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"value": "The Velociraptor gRPC API has a VFSGetBuffer endpoint which allows reading files from the datastore. To prevent users from reading sensitive files or accessing other orgs, the requested path is prefix checked against a list of denied prefixes. This prefix check can be bypassed allowing a user to access usually denied files. If the user has read permission in the ROOT org, this allows access to other orgs, in which the user may not have permission.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "The Velociraptor gRPC API has a VFSGetBuffer endpoint which allows reading files from the datastore. To prevent users from reading sensitive files or accessing other orgs, the requested path is prefix checked against a list of denied prefixes. This prefix check can be bypassed allowing a user to access usually denied files. If the user has read permission in the ROOT org, this allows access to other orgs, in which the user may not have permission."
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}
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]
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}
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],
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"references": [
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{
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"url": "http://docs.velociraptor.app/announcements/advisories/cve-2026-18636/"
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}
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],
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"metrics": [
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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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"cvssV3_1": {
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"version": "3.1",
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"privilegesRequired": "HIGH",
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"userInteraction": "NONE",
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"scope": "CHANGED",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "NONE",
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"availabilityImpact": "NONE",
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"baseSeverity": "MEDIUM",
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"baseScore": 6.8,
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:N"
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}
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}
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],
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"configurations": [
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{
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"lang": "en",
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"value": "To exploit this the user must have the \"reader\" role on the ROOT org.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "To exploit this the user must have the \"reader\" role on the ROOT org. "
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}
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]
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}
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],
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"workarounds": [
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{
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"lang": "en",
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"value": "As documented https://docs.velociraptor.app/docs/deployment/security/#the-root-org , the root org is more privileged than other orgs. You should only give trusted users access to the root org.",
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"supportingMedia": [
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{
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"type": "text/html",
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"base64": false,
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"value": "As <a href=\"https://docs.velociraptor.app/docs/deployment/security/#the-root-org\">documented</a>, the root org is more privileged than other orgs. You should only give trusted users access to the root org."
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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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"value": "Itay Vardi",
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"type": "finder"
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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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"x_generator": {
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"engine": "Vulnogram 1.0.4"
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}
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},
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"adp": [
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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": "2026-08-11T19:25:52.804927Z",
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"id": "CVE-2026-18636",
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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": "partial"
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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": "2026-08-11T19:43:56.379Z"
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}
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}
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]
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}
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} |