Denial of service in HtmlUnit

1) Input validation error

EUVDB-ID: #VU77777

Risk: Low

CVSSv4.0: 1.2 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-28366

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of crafted Processing Instruction (PI) input. A remote attacker can trick the victim to visit a specially crafted web page and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

HtmlUnit: 2.0 - 2.26

CPE2.3

• cpe:2.3:a:htmlunit:htmlunit:2.0:*:*:*:*:*:*:*
• cpe:2.3:a:htmlunit:htmlunit:2.1:*:*:*:*:*:*:*
• cpe:2.3:a:htmlunit:htmlunit:2.2:*:*:*:*:*:*:*

External links

https://github.com/nahsra/antisamy/releases/tag/v1.6.6
https://sourceforge.net/projects/htmlunit/files/htmlunit/2.27/
https://search.maven.org/artifact/net.sourceforge.htmlunit/neko-htmlunit

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to trick the victim to visit a specially crafted website.

Is there known malware, which exploits this vulnerability?

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