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CVE-2019-1069KEV · ransomwarein critical feed

Task Scheduler Elevation of Privilege Vulnerability

Published 7 y ago · modified 2 mo ago · JSON

CVSS
7.8
v3.1 · CNA
CISA KEV
Yes
added 2022-03-15
EPSS
6.2%
percentile 94%
Public exploits
0
none known

An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system. To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system. The security update addresses the vulnerability by correctly validating file operations.

Known exploited (CISA KEV)

Added
4 y ago
Due date
2022-04-05 (4 y ago)
Ransomware use
Known to be used in ransomware campaigns
Required action
Apply updates per vendor instructions.
Vendor / product
Microsoft / Task Scheduler
CISA name
Microsoft Task Scheduler Privilege Escalation Vulnerability

CISA SSVC assessment

Exploitation
Active — exploited in the wild
Automatable
no
Technical impact
total
Assessed
4 y ago

Exploit prediction (EPSS)

6.17% probability of exploitation in the next 30 days, higher than 94% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
CNA3.17.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C
CNA3.17.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD3.17.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD2.07.2AV:L/AC:L/Au:N/C:C/I:C/A:C

Affected products

  • Microsoft Windows 10 Version 1703
  • Microsoft Windows 10 Version 1803
  • Microsoft Windows Server, version 1803 (Server Core Installation)
  • Microsoft Windows 10 Version 1809
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2019 (Server Core installation)
  • Microsoft Windows 10 Version 1709 for 32-bit Systems
  • Microsoft Windows 10 Version 1709
  • Microsoft Windows 10 Version 1903 for 32-bit Systems
  • Microsoft Windows 10 Version 1903 for x64-based Systems
  • Microsoft Windows 10 Version 1903 for ARM64-based Systems
  • Microsoft Windows Server, version 1903 (Server Core installation)
  • Microsoft Windows 10 Version 1507
  • Microsoft Windows 10 Version 1607
  • Microsoft Windows Server 2016
  • Microsoft Windows Server 2016 (Server Core installation)
  • microsoft windows_10
  • microsoft windows_server_2016
  • microsoft windows_server_2019

Classification

Weakness
  • CWE-59 Improper Link Resolution Before File Access

References

  • msrc.microsoft.com /update-guide/vulnerability/CVE-2019-1069 · vendor-advisory
  • kb.cert.org /vuls/id/119704 · third-party-advisory, x_refsource_CERT-VN, x_transferred
  • portal.msrc.microsoft.com /en-US/security-guidance/advisory/CVE-2019-1069 · x_refsource_MISC, x_transferred
  • blog.0patch.com /2019/06/another-task-scheduler-0day-another.html · x_refsource_MISC, x_transferred
  • cisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1069 · government-resource

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.