135 lines
5.7 KiB
JSON
135 lines
5.7 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-2026-62943",
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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": "2026-07-14T22:32:17.731Z",
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"datePublished": "2026-09-18T16:24:48.513Z",
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"dateUpdated": "2026-09-21T20:50:09.611Z"
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},
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"containers": {
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"cna": {
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"title": "btrbk: SSH Command Filter Bypass in ssh_filter_btrbk.sh",
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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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"metrics": [
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{
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"cvssV4_0": {
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"attackVector": "NETWORK",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"privilegesRequired": "LOW",
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"userInteraction": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnAvailabilityImpact": "HIGH",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"subAvailabilityImpact": "NONE",
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"baseScore": 8.7,
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"baseSeverity": "HIGH",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
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"version": "4.0"
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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/digint/btrbk/security/advisories/GHSA-pf45-7g54-65h5",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/digint/btrbk/security/advisories/GHSA-pf45-7g54-65h5"
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},
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{
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"name": "https://github.com/digint/btrbk/commit/29ca3c093205395bdeb9dd98677ab4139c458aec",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/digint/btrbk/commit/29ca3c093205395bdeb9dd98677ab4139c458aec"
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},
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{
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"name": "https://github.com/digint/btrbk/releases/tag/v0.32.7",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/digint/btrbk/releases/tag/v0.32.7"
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}
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],
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"affected": [
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{
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"vendor": "digint",
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"product": "btrbk",
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"versions": [
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{
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"version": ">= 0.29.0, < 0.32.7",
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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": "2026-09-18T16:24:48.513Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "btrbk is a tool for creating snapshots and remote backups of Btrfs subvolumes. From 0.29.0 until 0.32.7, btrbk's ssh_filter_btrbk.sh constructs allow_stream_match with a start anchor but without an end-of-string anchor for the complete command. A user restricted through an authorized_keys forced command can append a trailing pipe command after a valid btrbk command prefix, bypassing the allowlist and executing arbitrary commands with the privileges of the backup-target SSH account. Deployments that do not use ssh_filter_btrbk.sh in authorized_keys are not affected. This issue is fixed in version 0.32.7."
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}
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],
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"source": {
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"advisory": "GHSA-pf45-7g54-65h5",
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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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"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": "2026-09-18T19:24:36.668834Z",
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"id": "CVE-2026-62943",
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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": "2026-09-21T20:50:09.611Z"
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}
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}
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]
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}
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} |