CVE-2023-24813
Dompdf Remote Code Execution (RCE) via SVG File Upload
Description
Dompdf is an HTML to PDF converter written in php. Due to the difference in the attribute parser of Dompdf and php-svg-lib, an attacker can still call arbitrary URLs with arbitrary protocols. Dompdf parses the href attribute of `image` tags and respects `xlink:href` even if `href` is specified. However, php-svg-lib, which is later used to parse the svg file, parses the href attribute. Since `href` is respected if both `xlink:href` and `href` is specified, it's possible to bypass the protection on the Dompdf side by providing an empty `xlink:href` attribute. An attacker can exploit the vulnerability to call arbitrary URLs with arbitrary protocols if they provide an SVG file to the Dompdf. In PHP versions before 8.0.0, it leads to arbitrary unserialize, which will lead, at the very least, to arbitrary file deletion and might lead to remote code execution, depending on available classes. This vulnerability has been addressed in commit `95009ea98` which has been included in release version 2.0.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.
INFO
Published Date :
Feb. 7, 2023, 7:15 p.m.
Last Modified :
Feb. 16, 2023, 2:53 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2023-24813 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2023-24813.
| URL | Resource |
|---|---|
| https://github.com/dompdf/dompdf/commit/95009ea98230f9b084b040c34e3869ef3dccc9aa | Patch Vendor Advisory |
| https://github.com/dompdf/dompdf/security/advisories/GHSA-56gj-mvh6-rp75 | 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).
Exploits For CVEs
PHP
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-24813 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-24813 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.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Feb. 16, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/dompdf/dompdf/commit/95009ea98230f9b084b040c34e3869ef3dccc9aa No Types Assigned https://github.com/dompdf/dompdf/commit/95009ea98230f9b084b040c34e3869ef3dccc9aa Patch, Vendor Advisory Changed Reference Type https://github.com/dompdf/dompdf/security/advisories/GHSA-56gj-mvh6-rp75 No Types Assigned https://github.com/dompdf/dompdf/security/advisories/GHSA-56gj-mvh6-rp75 Exploit, Vendor Advisory Added CPE Configuration OR *cpe:2.3:a:dompdf_project:dompdf:2.0.2:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-24813 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-2023-24813
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.45 }} 0.02%
score
0.75628
percentile