Evernote 7.9 - Code Execution via Path Traversal

2019-04-1800:00:00

Dhiraj Mishra

www.exploit-db.com

4.4 Medium

CVSS2

Attack Vector

LOCAL

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

0.263 Low

EPSS

Percentile

96.8%

JSON

Exploit Title: Code execution via path traversal
# Date: 17-04-2019
# Exploit Author: Dhiraj Mishra
# Vendor Homepage: http://evernote.com/
# Software Link: https://evernote.com/download
# Version: 7.9
# Tested on: macOS Mojave v10.14.4
# CVE: CVE-2019-10038
# References:
# https://nvd.nist.gov/vuln/detail/CVE-2019-10038
# https://www.inputzero.io/2019/04/evernote-cve-2019-10038.html

Summary:
A local file path traversal issue exists in Evernote 7.9 for macOS which
allows an attacker to execute arbitrary programs.

Technical observation:
A crafted URI can be used in a note to perform this attack using file:///
has an argument or by traversing to any directory like
(../../../../something.app).

Since, Evernote also has a feature of sharing notes, in such case attacker
could leverage this vulnerability and send crafted notes (.enex) to the
victim to perform any further attack.

Patch:
The patch for this issue is released in Evernote 7.10 Beta 1 for macOS
[MACOSNOTE-28840]. Also, the issue is tracked by CVE-2019-10038.