CVE-2020-3427 (GCVE-0-2020-3427)

Vulnerability from cvelistv5 – Published: 2020-10-14 18:15 – Updated: 2024-11-13 17:51
VLAI?
Summary
The Windows Logon installer prior to 4.1.2 did not properly validate file installation paths. This allows an attacker with local user privileges to coerce the installer to write to arbitrary privileged directories. If successful, an attacker can manipulate files used by Windows Logon, cause Denial of Service (DoS) by deleting file(s), or replace system files to potentially achieve elevation of privileges. Note that this can only exploitable during new installations while the installer is running and is not exploitable once installation is finished. Versions 4.1.2 of Windows Logon addresses this issue.
Severity ?
6.6 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
CWE
  • CWE-280 - Improper Handling of Insufficient Permissions or Privileges
Assigner
References
https://duo.com/docs/rdp-notes vendor-advisoryx_refsource_CISCO
Impacted products
Vendor Product Version
Cisco Duo Authentication for Windows Logon and RDP Affected: unspecified , < 4.1.2 (custom)
Create a notification for this product.
Credits
This issue was reported by Ido Hoorvitch from CyberArk
Show details on NVD website
To clipboard 

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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.