Remote File Inclusion in Dompdf Versions Prior to 2.0.1
CVE-2022-41343

7.5HIGH

Key Information:

Vendor

DomPDF Project

Status
DomPDF
Vendor
CVE Published:
25 September 2022

Badges

👾 Exploit Exists🟡 Public PoC🟣 EPSS 70%

What is CVE-2022-41343?

The vulnerability in Dompdf is tied to the improper URI validation in the registerFont function within FontMetrics.php. This flaw allows attackers to exploit the font registration mechanism through the use of a @font-face rule, enabling remote file inclusion. By bypassing expected validation checks, malicious users can potentially manipulate the system and gain unauthorized access to sensitive data or execute arbitrary code.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2022-41343
Created by BKreisel

References

https://github.com/dompdf/dompdf/issues/2994
https://github.com/dompdf/dompdf/pull/2995
https://github.com/dompdf/dompdf/releases/tag/v2.0.1

EPSS Score

70% chance of being exploited in the next 30 days.

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.
CVE-2022-41343 : Remote File Inclusion in Dompdf Versions Prior to 2.0.1