SB2020122919 - Prototype pollution in libnested

Description

This security bulletin contains information about 1 vulnerability.

1) Prototype pollution (CVE-ID: CVE-2020-28283)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]

The disclosed vulnerability allows a remote attacker to execute arbitrary JavaScript code.

The vulnerability exists due to insufficient sanitization of user-supplied data. A remote attacker can inject and execute arbitrary script code.

Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://github.com/dominictarr/libnested/blob/d028a1b0f2e5f16fc28e568f52b936ae0bca0647/index.js#L27
• https://www.whitesourcesoftware.com/vulnerability-database/CVE-2020-28284