CVE-2023-39517
"Joplin Electron Shell Command Execution XSS"
Description
Joplin is a free, open source note taking and to-do application. A Cross site scripting (XSS) vulnerability in affected versions allows clicking on an untrusted image link to execute arbitrary shell commands. The HTML sanitizer (`packages/renderer/htmlUtils.ts::sanitizeHtml`) preserves `<map>` `<area>` links. However, unlike `<a>` links, the `target` and `href` attributes are not removed. Additionally, because the note preview pane isn't sandboxed to prevent top navigation, links with `target` set to `_top` can replace the toplevel electron page. Because any toplevel electron page, with Joplin's setup, has access to `require` and can require node libraries, a malicious replacement toplevel page can import `child_process` and execute arbitrary shell commands. This issue has been fixed in commit 7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f which is included in release version 2.12.8. Users are advised to upgrade. There are no known workarounds for this vulnerability.
INFO
Published Date :
June 21, 2024, 8:15 p.m.
Last Modified :
Sept. 26, 2024, 1:36 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.3
Exploitability Score :
2.3
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-39517.
| URL | Resource |
|---|---|
| https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox | Not Applicable |
| https://github.com/laurent22/joplin/commit/7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f | Patch |
| https://github.com/laurent22/joplin/security/advisories/GHSA-2h88-m32f-qh5m | Exploit Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-39517 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-39517 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Sep. 26, 2024
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N Changed Reference Type https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox No Types Assigned https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox Not Applicable Changed Reference Type https://github.com/laurent22/joplin/commit/7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f No Types Assigned https://github.com/laurent22/joplin/commit/7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f Patch Changed Reference Type https://github.com/laurent22/joplin/security/advisories/GHSA-2h88-m32f-qh5m No Types Assigned https://github.com/laurent22/joplin/security/advisories/GHSA-2h88-m32f-qh5m Exploit, Vendor Advisory Added CWE NIST CWE-79 Added CPE Configuration OR *cpe:2.3:a:joplin_project:joplin:*:*:*:*:*:-:*:* versions up to (excluding) 2.12.8 -
CVE Received by [email protected]
Jun. 21, 2024
Action Type Old Value New Value Added Description Joplin is a free, open source note taking and to-do application. A Cross site scripting (XSS) vulnerability in affected versions allows clicking on an untrusted image link to execute arbitrary shell commands. The HTML sanitizer (`packages/renderer/htmlUtils.ts::sanitizeHtml`) preserves `<map>` `<area>` links. However, unlike `<a>` links, the `target` and `href` attributes are not removed. Additionally, because the note preview pane isn't sandboxed to prevent top navigation, links with `target` set to `_top` can replace the toplevel electron page. Because any toplevel electron page, with Joplin's setup, has access to `require` and can require node libraries, a malicious replacement toplevel page can import `child_process` and execute arbitrary shell commands. This issue has been fixed in commit 7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f which is included in release version 2.12.8. Users are advised to upgrade. There are no known workarounds for this vulnerability. Added Reference GitHub, Inc. https://github.com/laurent22/joplin/security/advisories/GHSA-2h88-m32f-qh5m [No types assigned] Added Reference GitHub, Inc. https://github.com/laurent22/joplin/commit/7c52c3e9a81a52ef1b42a951f9deb9d378d59b0f [No types assigned] Added Reference GitHub, Inc. https://developer.mozilla.org/en-US/docs/Web/HTML/Element/iframe#sandbox [No types assigned] Added CWE GitHub, Inc. CWE-79 Added CVSS V3.1 GitHub, Inc. AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:L
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-39517 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-39517
weaknesses.