#VU51572 Prototype Pollution in changeset - CVE-2021-25915

Vulnerability identifier: #VU51572

Vulnerability risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-25915

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

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

Vendor: Eugene Ware

Description

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

The vulnerability exists due to application does not properly control consumption of internal resources in the "apply()" function. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

changeset: 0.1.0 - 0.2.5

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External links
https://github.com/eugeneware/changeset/commit/9e588844edbb9993b32e7366cc799262b4447f99
https://www.whitesourcesoftware.com/vulnerability-database/CVE-2021-25915

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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.