Privilege escalation in Microsoft Windows Task Scheduler



| Updated: 2024-09-24
Risk High
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-1069
CWE-ID CWE-59
Exploitation vector Local
Public exploit Vulnerability #1 is being exploited in the wild.
Vulnerable software
 Windows Server
Operating systems & Components / Operating system

Windows
Operating systems & Components / Operating system

Vendor Microsoft

Security Bulletin

This security bulletin contains one high risk vulnerability.

1) Link following

EUVDB-ID: #VU97660

Risk: High

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2019-1069

CWE-ID: CWE-59 - Improper Link Resolution Before File Access ('Link Following')

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to incorrect validation of links in Task Scheduler Service. A local user can create a link to a critical file and escalate privileges on the system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Windows Server: 2019 10.0.17763.557

Windows: before 10 1703 10.0.15063.1868, 10 1803 10.0.17134.829, 10 1809 10.0.17763.557, 10 1903 10.0.18362.175

CPE2.3 External links

https://msrc.microsoft.com/update-guide/en-US/advisory/CVE-2019-1069
https://www.kb.cert.org/vuls/id/119704


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.



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