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paloaltoPalo Alto Networks Product Security Incident Response TeamPA-CVE-2020-1986
HistoryApr 08, 2020 - 4:00 p.m.

Secdo: Local authenticated users can cause Windows system crash

2020-04-0816:00:00
Palo Alto Networks Product Security Incident Response Team
securityadvisories.paloaltonetworks.com
22

CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0

Percentile

5.1%

Improper input validation vulnerability in Secdo allows an authenticated local user with ‘create folders or append data’ access to the root of the OS disk (C:) to cause a system crash on every login. This issue affects all versions Secdo for Windows.

Work around:
Exploitation of this issue can be prevented by creating a “C:\proc” folder and not allowing unprivileged users to access that folder.

CVSS2

4.9

Attack Vector

LOCAL

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS3

5.5

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0

Percentile

5.1%

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