Prototype pollution in jQuery



Published: 2019-03-28 | Updated: 2019-04-22
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-11358
CWE-ID CWE-400
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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jQuery
Web applications / JS libraries

Vendor The jQuery Team

Security Bulletin

This security bulletin contains information about 1 vulnerabilities.

UPDATED: 11.04.2019
Changed patch status to patched.
UPDATED: 22.04.2019
Assigned CVE-ID to the advisory.

1) Prototype pollution

EUVDB-ID: #VU18092

Risk: Low

CVSSv3.1:

CVE-ID: CVE-2019-11358

CWE-ID: CWE-400 - Uncontrolled Resource Consumption ('Resource Exhaustion')

Exploit availability: Yes

Description

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

The vulnerability exists due to prototype pollution. A remote attacker can trick the extend function can into modifying the prototype of Object when the attacker controls part of the structure passed to this function. This can let an attacker add or modify an existing property that will then exist on all objects and perform a denial of service (DoS) attack.

Mitigation

Update to version 3.4.0.

Vulnerable software versions

jQuery: 1.0.0 - 3.3.1


CPE2.3 External links

http://github.com/jquery/jquery/pull/4333
http://github.com/jquery/jquery/commit/753d591aea698e57d6db58c9f722cd0808619b1b
http://snyk.io/vuln/SNYK-JS-JQUERY-174006

Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?



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