#VU65736 XML Entity Expansion in untangle - CVE-2022-33977

Vulnerability identifier: #VU65736

Vulnerability 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-2022-33977

CWE-ID: CWE-776

Exploitation vector: Network

Exploit availability: No

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

Vendor: Christian Stefanescu

Description

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

The vulnerability exists due to improper restrictions on XML entities in DTDs. A remote attacker can send a specially crafted request and cause a denial of service condition on the target system.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

untangle: 0.1 - 1.2.0

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External links
https://jvn.jp/en/jp/JVN30454777/index.html

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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.