#VU72318 Server-Side Request Forgery (SSRF) in Dompdf - CVE-2022-0085

Vulnerability identifier: #VU72318

Vulnerability risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:L/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2022-0085

CWE-ID: CWE-918

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Dompdf
Web applications / Modules and components for CMS

Vendor: dompdf

Description

The disclosed vulnerability allows a remote attacker to perform SSRF attacks.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Dompdf: 0.7.0 - 1.2.2

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External links
https://github.com/dompdf/dompdf/commit/bb1ef65011a14730b7cfbe73506b4bb8a03704bd
https://huntr.dev/bounties/73dbcc78-5ba9-492f-9133-13bbc9f31236

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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.