Code injection in Lodash component for Node.js



Published: 2019-07-26 | Updated: 2019-10-14
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-10744
CWE-ID CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
Subscribe 		Lodash
Web applications / JS libraries

Vendor Lodash

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Code Injection

EUVDB-ID: #VU21764

Risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-10744

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to modify properties on the target system.

The vulnerability exists due to improper input validation in the "defaultsDeep" function. A remote attacker can send a specially crafted request and modify the prototype of "Object" via "{constructor: {prototype: {...}}}" causing the addition or modification of an existing property that will exist on all objects.


Mitigation

Install updates from vendor's website.

Vulnerable software versions

Lodash: 0.1.0 - 4.17.11

External links

http://snyk.io/vuln/SNYK-JS-LODASH-450202


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. However, proof of concept for this vulnerability is available.



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