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Vulnerability Details :

CVE-2020-3427

Summary
Assigner-cisco
Assigner Org ID-d1c1063e-7a18-46af-9102-31f8928bc633
Published At-14 Oct, 2020 | 18:15
Updated At-13 Nov, 2024 | 17:51
Rejected At-
Credits

Duo Authentication for Windows Logon and RDP Privilege Escalation Vulnerability

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:cisco
Assigner Org ID:d1c1063e-7a18-46af-9102-31f8928bc633
Published At:14 Oct, 2020 | 18:15
Updated At:13 Nov, 2024 | 17:51
Rejected At:
▼CVE Numbering Authority (CNA)
Duo Authentication for Windows Logon and RDP Privilege Escalation Vulnerability

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.

Affected Products
Vendor
Cisco Systems, Inc.Cisco
Product
Duo Authentication for Windows Logon and RDP
Versions
Affected
  • From unspecified before 4.1.2 (custom)
Problem Types
TypeCWE IDDescription
CWECWE-280CWE-280 Improper Handling of Insufficient Permissions or Privileges
Type: CWE
CWE ID: CWE-280
Description: CWE-280 Improper Handling of Insufficient Permissions or Privileges
Metrics
VersionBase scoreBase severityVector
3.16.6MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Version: 3.1
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

This issue was reported by Ido Hoorvitch from CyberArk
Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://duo.com/docs/rdp-notes
vendor-advisory
x_refsource_CISCO
Hyperlink: https://duo.com/docs/rdp-notes
Resource:
vendor-advisory
x_refsource_CISCO
▼Authorized Data Publishers (ADP)
1. CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://duo.com/docs/rdp-notes
vendor-advisory
x_refsource_CISCO
x_transferred
Hyperlink: https://duo.com/docs/rdp-notes
Resource:
vendor-advisory
x_refsource_CISCO
x_transferred
2. CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:ykramarz@cisco.com
Published At:14 Oct, 2020 | 19:15
Updated At:20 Sep, 2022 | 16:59

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.17.8HIGH
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Secondary3.16.6MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Primary2.04.6MEDIUM
AV:L/AC:L/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 7.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
Type: Primary
Version: 2.0
Base score: 4.6
Base severity: MEDIUM
Vector:
AV:L/AC:L/Au:N/C:P/I:P/A:P
CPE Matches

Cisco Systems, Inc.
cisco
>>duo_authentication_for_windows_logon_and_rdp>>Versions before 4.1.2(exclusive)
cpe:2.3:a:cisco:duo_authentication_for_windows_logon_and_rdp:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
NVD-CWE-noinfoPrimarynvd@nist.gov
CWE-280Secondaryykramarz@cisco.com
CWE ID: NVD-CWE-noinfo
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-280
Type: Secondary
Source: ykramarz@cisco.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://duo.com/docs/rdp-notesykramarz@cisco.com
Release Notes
Vendor Advisory
Hyperlink: https://duo.com/docs/rdp-notes
Source: ykramarz@cisco.com
Resource:
Release Notes
Vendor Advisory

Change History

0
Information is not available yet

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