#VU20426 Prototype pollution in set-value - CVE-2019-10747
Published: August 28, 2019
Vulnerability identifier: #VU20426
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2019-10747
CWE-ID: CWE-400
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
set-value
set-value
Software vendor:
Jon Schlinkert
Jon Schlinkert
Description
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the "set-value" function fails to validate which Object properties it updates. A remote attacker can modify the prototype of Object using any of the constructor, prototype and "_proto_ payloads", causing the addition or modification of an existing property on all objects, trigger resource exhaustion and perform a denial of service attack.
Remediation
Install updates from vendor's website.