CVE-2021-3838

CVSS V2 None CVSS V3 None

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.

Overview

CVE ID
CVE-2021-3838

Assigner
@huntr_ai

Vulnerability Status
PUBLISHED

Published Version
2024-11-15T10:51:36.766Z

Last Modified Date
2024-11-15T10:57:26.565Z

Weakness Enumerations

CWE	URL
CWE-502	http://cwe.mitre.org/data/definitions/502.html

References

Reference URL	Reference Tags
https://huntr.com/bounties/0bdddc12-ff67-4815-ab9f-6011a974f48e
https://github.com/dompdf/dompdf/commit/99aeec1efec9213e87098d42eb09439e7ee0bb6a

Sources

Source Name	Source URL
NIST	https://nvd.nist.gov/vuln/detail/CVE-2021-3838
MITRE	https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3838

History

Created	Old Value	New Value	Data Type	Notes
2024-11-16 12:03:21				Added to TrackCVE