Arbitrary Code Execution in Handlebars - handlebars

Description

Handlebars before 3.0.8 and 4.x before 4.5.3 is vulnerable to Arbitrary Code Execution. The lookup helper fails to properly validate templates, allowing attackers to submit templates that execute arbitrary JavaScript.

Recommendation

Update the handlebars package to the latest compatible version. Followings are version details:

• Affected version(s): **>= 4.0.0, < 4.5.3

  < 3.0.8**

• Patched version(s): **4.5.3

  3.0.8**

References

• GHSA-3cqr-58rm-57f8
• snyk.io
• www.npmjs.com
• CVE-2019-20920
• CWE-94
• CAPEC-310
• OWASP 2021-A3
• OWASP 2021-A6

Related Issues

• Sandbox Breakout / Arbitrary Code Execution in safer-eval - safer-eval - CVE-2019-10769
• Sandbox Breakout / Arbitrary Code Execution in safer-eval - safer-eval - GHSA-hgch-jjmr-gp7w - CVE-2019-10760
• Sandbox Breakout / Arbitrary Code Execution in safer-eval - safer-eval - GHSA-r3x4-wr4h-pw33 - CVE-2019-10759
• Arbitrary Code Execution in underscore - CVE-2021-23358

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How to Secure your NodeJs Express Javascript Application - part 1

How to Secure your NodeJs Express Javascript Application - part 2

10 Secure Coding Best Practices to Follow in Every Project

Tags:

npm

handlebars