163 lines
6.7 KiB
JSON
163 lines
6.7 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-2026-49819",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-06-01T18:50:36.055Z",
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"datePublished": "2026-08-12T23:13:46.298Z",
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"dateUpdated": "2026-08-13T13:08:59.003Z"
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},
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"containers": {
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"cna": {
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"title": "UpSnap - Unauthenticated Initial-Superuser Takeover Chains to Root RCE via wake_cmd",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-78",
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"lang": "en",
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"description": "CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')",
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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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"descriptions": [
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{
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"cweId": "CWE-269",
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"lang": "en",
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"description": "CWE-269: Improper Privilege Management",
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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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"descriptions": [
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{
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"cweId": "CWE-306",
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"lang": "en",
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"description": "CWE-306: Missing Authentication for Critical Function",
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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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"descriptions": [
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{
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"cweId": "CWE-862",
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"lang": "en",
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"description": "CWE-862: Missing Authorization",
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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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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 9.8,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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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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"name": "https://github.com/seriousm4x/UpSnap/security/advisories/GHSA-w4jr-728f-5jhq",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/seriousm4x/UpSnap/security/advisories/GHSA-w4jr-728f-5jhq"
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},
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{
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"name": "https://github.com/seriousm4x/UpSnap/releases/tag/5.4.0",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/seriousm4x/UpSnap/releases/tag/5.4.0"
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}
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],
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"affected": [
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{
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"vendor": "seriousm4x",
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"product": "UpSnap",
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"versions": [
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{
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"version": ">= 4.4.1, < 5.4.0",
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"status": "affected"
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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": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-08-12T23:13:46.298Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "UpSnap is a wake on lan web app. Versions 4.4.1 through 5.3.5 are vulnerable to a missing-authentication / privilege-escalation chain in `pb.HandlerInitSuperuser` (`backend/pb/handlers.go:249`), reachable as `POST /api/upsnap/init-superuser`. The vulnerable code lacks any authentication, setup token, IP allow-list, or rate limit and is gated only by a `totalSuperusers > 0` count check — a condition that is false on every fresh install — allowing an unauthenticated network-adjacent attacker to register the initial superuser account, receive a long-lived JWT, and pivot to root remote code execution at `backend/networking/wake.go:43` (`exec.CommandContext(ctx, \"/bin/sh\", \"-c\", wake_cmd)`). Version 5.4.0 fixes the issue."
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}
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],
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"source": {
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"advisory": "GHSA-w4jr-728f-5jhq",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/seriousm4x/UpSnap/security/advisories/GHSA-w4jr-728f-5jhq",
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"tags": [
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"exploit"
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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": "2026-08-13T13:08:41.648461Z",
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"id": "CVE-2026-49819",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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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": "2026-08-13T13:08:59.003Z"
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}
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}
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]
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}
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} |