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paloaltoPalo Alto Networks Product Security Incident Response TeamPA-CVE-2020-1984
HistoryApr 08, 2020 - 4:00 p.m.

Secdo: Privilege escalation via hardcoded script path

2020-04-0816:00:00
Palo Alto Networks Product Security Incident Response Team
securityadvisories.paloaltonetworks.com
18

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

Secdo tries to execute a script at a hardcoded path if present, which allows a local authenticated user with ‘create folders or append data’ access to the root of the OS disk (C:) to gain system privileges if the path does not already exist or is writable. This issue affects all versions of Secdo for Windows.

Work around:
This issue can be mitigated by :

  • Ensure unprivileged users do not have ‘create folder’ access on the root of filesystem such as C:.
    or
  • Creating a folder named C:\Common and ensuring unprivileged users do not have ‘create folder’ access.
CPENameOperatorVersion
secdoeqall versions

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.2 High

CVSS2

Access Vector

LOCAL

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

0.0004 Low

EPSS

Percentile

5.3%

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