Remote code execution in Dompdf

1) Deserialization of Untrusted Data

EUVDB-ID: #VU71762

Risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-23924

CWE-ID: CWE-502 - Deserialization of Untrusted Data

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to insecure input validation when processing serialized data within the SVG parsing. A remote attacker can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Dompdf: 2.0.1

External links

http://github.com/dompdf/dompdf/security/advisories/GHSA-3cw5-7cxw-v5qg
http://github.com/dompdf/dompdf/releases/tag/v2.0.2
http://github.com/dompdf/dompdf/commit/7558f07f693b2ac3266089f21051e6b78c6a0c85

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.