PT-2020-19732 · Npm · Safe-Eval

Anirudh Anand · Published 2020-08-21 · Updated 2021-07-21 · CVE-2020-7710

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions safe-eval versions all

Description The issue allows an attacker to run arbitrary commands on the host machine due to a lack of restriction on access to the main context through Error objects. This can lead to Remote Code Execution. An example exploit involves evaluating a payload that manipulates the Error object's prototype and stack property to execute arbitrary code, such as printing the contents of process.env.

Recommendations For all versions of safe-eval, consider using an alternative package until a fix is made available. As a temporary workaround, consider restricting or disabling the use of the safe-eval package to minimize the risk of exploitation.

Exploit

Fix

Code Injection

Weakness Enumeration

CWE-94

Related Identifiers

CVE-2020-7710

GHSA-HRPQ-R399-WHGW

SNYK-JS-SAFEEVAL-608076

Affected Products

Safe-Eval

References · 6

• 🔥 https://github.com/hacksparrow/safe-eval/issues/19 · Exploit
• https://osv.dev/vulnerability/CVE-2020-7710 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-7710 · Security Note
• https://osv.dev/vulnerability/GHSA-hrpq-r399-whgw · Vendor Advisory
• https://npmjs.com/advisories/1322 · Note
• https://snyk.io/vuln/SNYK-JS-SAFEEVAL-608076 · Note