Remote code execution in static-eval package for npm



Published: 2021-02-17
Risk High
Patch available NO
Number of vulnerabilities 1
CVE ID CVE-2021-23334
CWE ID CWE-94
Exploitation vector Network
Public exploit Public exploit code for vulnerability #1 is available.
Vulnerable software
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static-eval
Web applications / Modules and components for CMS

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Security Advisory

This security advisory describes one high risk vulnerability.

1) Code Injection

Risk: High

CVSSv3: 9.3 [CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C] [PCI]

CVE-ID: CVE-2021-23334

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in FunctionExpressions and TemplateLiterals. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

static-eval: 0.0.0, 0.1.0, 0.1.1, 0.2.0, 0.2.1, 0.2.2, 0.2.3, 0.2.4, 1.0.0, 1.1.0, 1.1.1, 2.0.0, 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, 2.1.0

CPE External links

https://github.com/browserify/static-eval/blob/master/index.js%23L180
https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1071860
https://snyk.io/vuln/SNYK-JS-STATICEVAL-1056765

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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