Current Description

Joplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file, via Joplin. This is possible because the application does not properly validate the schema/protocol of existing links in the markdown file before passing them to the ‘shell.openExternal’ function.

View Analysis Description

Analysis Description

Joplin version 2.8.8 allows an external attacker to execute arbitrary commands remotely on any client that opens a link in a malicious markdown file, via Joplin. This is possible because the application does not properly validate the schema/protocol of existing links in the markdown file before passing them to the ‘shell.openExternal’ function.

Severity

CVSS 3.x Severity and Metrics:

CVSS 2.0 Severity and Metrics:

References to Advisories, Solutions, and Tools

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Weakness Enumeration

CWE-ID CWE Name Source
CWE-20 Improper Input Validation NIST  

Change History

1 change records found show changes

Initial Analysis 10/04/2022 1:20:35 PM

Action Type Old Value New Value
Added CPE Configuration
AND
     OR
          *cpe:2.3:a:joplinapp:joplin:2.8.8:*:*:*:*:*:*:*
     OR
          cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:-:*:*:*
Added CPE Configuration
AND
     OR
          *cpe:2.3:a:joplinapp:joplin:2.8.8:*:*:*:*:*:*:*
     OR
          cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:*
Added CVSS V3.1
NIST AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Added CWE
NIST CWE-20
Changed Reference Type
https://fluidattacks.com/advisories/skrillex/ No Types Assigned
https://fluidattacks.com/advisories/skrillex/ Exploit, Third Party Advisory
Changed Reference Type
https://github.com/laurent22/joplin No Types Assigned
https://github.com/laurent22/joplin Product