CVE-2019-1064
Confirmed PUBLISHEDWindows Elevation of Privilege Vulnerability
Recommended Action
Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
At a Glance
An elevation of privilege vulnerability exists when Windows AppX Deployment Service (AppXSVC) improperly handles hard links. An attacker who successfully exploited this vulnerability could run processes in an elevated context. An attacker could then install programs; view, change or delete data. To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application that could exploit the vulnerability and take control of an affected system. The security update addresses the vulnerability by correcting how Windows AppX Deployment Service handles hard links.
- CVE Published
- Jun 12, 2019
- Exploitation Reported
- Mar 15, 2022
- CVSS
- 7.8 High
- EPSS
- —
Affected Versions
| Vendor | Product | Version | Status |
|---|---|---|---|
| Microsoft |
Windows 10 Version 1703
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1803
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows Server, version 1803 (Server Core Installation)
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1809
|
10.0.17763.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1809
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows Server 2019
|
10.0.17763.0 to < publication |
Affected |
| Microsoft |
Windows Server 2019 (Server Core installation)
|
10.0.17763.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1709 for 32-bit Systems
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1709
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1903 for 32-bit Systems
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1903 for x64-based Systems
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1903 for ARM64-based Systems
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows Server, version 1903 (Server Core installation)
|
10.0.0 to < publication |
Affected |
| Microsoft |
Windows 10 Version 1607
|
10.0.14393.0 to < publication |
Affected |
| Microsoft |
Windows Server 2016
|
10.0.14393.0 to < publication |
Affected |
| Microsoft |
Windows Server 2016 (Server Core installation)
|
10.0.14393.0 to < publication |
Affected |
CVE References
- Windows Elevation of Privilege Vulnerability msrc.microsoft.com · Vendor Advisory https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1064
Recommended Actions
- Prioritize remediation. Validate affected assets and apply vendor fixes on an accelerated timeline.
- Check enrichment artifacts for scanner coverage and available PoCs before rolling remediation validation.
- Use the Pro API to automate enrichment, telemetry, and workflow delivery for VM, SOC, and CTI pipelines.
Known Exploited Vulnerability Sources
Catalogues that list this CVE as a known exploited vulnerability.
Per-source evidence links for KEV attestations are available through the KEVIntel Pro API.
Learn about Pro API access| Source | Added |
|---|---|
| CISA First | 2022-03-15 00:00 UTC |
No detection artifacts or sensor request patterns are available for this CVE yet.
Check back as sensor telemetry and scanner integrations are updated.
Virtual Patch
Compensating WAF rules to help reduce exposure to this CVE. Rule content and deployable vendor exports are available with KEVIntel Enterprise.
KEVIntel does not currently have a virtual patch for this CVE. When available, KEVIntel virtual patches ship as deployable ModSecurity, Cloudflare, and AWS WAF rules.
Enterprise feature. Virtual patch rule content and deployable vendor exports (ModSecurity, Cloudflare, AWS WAF) are available to KEVIntel Enterprise users.
CVSS Scores
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
Exploitation Status
Exploited in the wild
Recorded 2022-03-15 00:00:00 UTC · CISA
Used in malware
Recorded 2022-03-15 00:00:00 UTC · CISA
Proof of concept available
Recorded 2019-06-12 10:21:35 UTC · GitHub
Weaknesses (CWE)
-
Improper Link Resolution Before File Access ('Link Following')
Potential Proof of Concepts
These PoCs are unverified and could contain malware. Use at your own risk.
github · Created 2019-06-16 09:31:11 UTC · 1 stars
CVE-2019-1064 - AppXSVC Local Privilege Escalation
github · Created 2019-06-12 15:54:55 UTC · 11 stars
CVE-2019-1064 Local Privilege Escalation Vulnerability
github · Created 2019-06-12 10:21:35 UTC · 24 stars
CVE-2019-1064 Local Privilege Escalation Vulnerability
Timeline
Key exploitation, disclosure, scanner coverage, and KEV attestation events for this CVE.
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
Added to CISA KEV
Listed in the CISA Known Exploited Vulnerabilities catalog
-
00:00 UTC over 4 years ago00:00 UTC · over 4 years ago
First public exploitation report
Exploit observed in malware
-
13:49 UTC about 7 years ago13:49 UTC · about 7 years ago
CVE published
Vulnerability disclosed publicly
-
10:21 UTC about 7 years ago10:21 UTC · about 7 years ago
Public PoC available
Public proof-of-concept code published
-
00:00 UTC over 7 years ago00:00 UTC · over 7 years ago
CVE ID reserved
Identifier reserved by the CNA
Automate This Intelligence with the Pro API
Confidence scoring, exploit status, sensor telemetry, PoCs, scanner integrations, mentions, and tags are available programmatically for VM, SOC, and CTI workflows.
Pro API Example
GET /api/v2/pro/kevs/CVE-2019-1064
{
"cve_id": "CVE-2019-1064",
"title": "Windows Elevation of Privilege Vulnerability",
"affected_vendor": "Microsoft",
"affected_product": "Windows 10 Version 1703, Windows 10 Version 1803, Windows Server, version 1803 (Server Core Installation), Windows 10 Version 1809, Windows Server 2019, Windows Server 2019 (Server Core installation), Windows 10 Version 1709 for 32-bit Systems, Windows 10 Version 1709, Windows 10 Version 1903 for 32-bit Systems, Windows 10 Version 1903 for x64-based Systems, Windows 10 Version 1903 for ARM64-based Systems, Windows Server, version 1903 (Server Core installation), Windows 10 Version 1607, Windows Server 2016, Windows Server 2016 (Server Core installation)",
"affected_versions": [
{ "vendor": "...", "product": "...", "status": "affected", "display_label": "..." }
],
"confidence": "Confirmed",
"cvss_score": 7.8,
"epss_score": null,
"exploit_status": {
"exploited_in_the_wild": true,
"active_exploitation_observed": false
},
"sensor_telemetry": { "...": "Pro API fields" },
"proof_of_concepts": [ "..." ],
"scanner_integrations": [ "..." ]
}