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CVE-2021-3838 Detail

Description

DomPDF before version 2.0.0 is vulnerable to PHAR deserialization due to a lack of checking on the protocol before passing it into the file_get_contents() function. An attacker who can upload files of any type to the server can pass in the phar:// protocol to unserialize the uploaded file and instantiate arbitrary PHP objects. This can lead to remote code execution, especially when DOMPdf is used with frameworks with documented POP chains like Laravel or vulnerable developer code.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
https://github.com/dompdf/dompdf/commit/99aeec1efec9213e87098d42eb09439e7ee0bb6a Patch 
https://huntr.com/bounties/0bdddc12-ff67-4815-ab9f-6011a974f48e Exploit  Issue Tracking  Patch  Third Party Advisory 

Weakness Enumeration

CWE-ID CWE Name Source
CWE-502 Deserialization of Untrusted Data huntr.dev  

Known Affected Software Configurations Switch to CPE 2.2

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Change History

3 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-3838
NVD Published Date:
11/15/2024
NVD Last Modified:
11/19/2024
Source:
huntr.dev