PT-2020-19764 · Tsed · @Tsed/Core

Sam Sanoop · Published 2020-10-20 · Updated 2022-12-02 · CVE-2020-7748

Positive Technologies (AI Summary)

CVSS v2.0

6.8

Medium

Base vector

AV:N/AC:M/Au:N/C:P/I:P/A:P

Name of the Vulnerable Software and Affected Versions @tsed/core versions prior to 5.65.7

Description This issue relates to the deepExtend function, part of the utils directory. Depending on user input, an attacker can overwrite and pollute the object prototype of a program.

Recommendations For versions prior to 5.65.7, update to version 5.65.7 or later to resolve the issue. As a temporary workaround, consider restricting user input to prevent exploitation of the deepExtend function.

Exploit

Fix

Prototype Pollution

Weakness Enumeration

CWE-1321

CWE-915

Related Identifiers

CVE-2020-7748

GHSA-77XQ-CPVG-7XM2

SNYK-JS-TSEDCORE-1019382

Affected Products

@Tsed/Core

References · 8

• 🔥 https://snyk.io/vuln/SNYK-JS-TSEDCORE-1019382 · Exploit
• https://github.com/TypedProject/tsed/blob/production/packages/core/src/utils/deepExtends.ts%23L36 · Patch
• https://github.com/TypedProject/tsed/commit/1395773ddac35926cf058fc6da9fb8e82266761b · Patch
• https://osv.dev/vulnerability/CVE-2020-7748 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-7748 · Security Note
• https://osv.dev/vulnerability/GHSA-77xq-cpvg-7xm2 · Vendor Advisory
• https://github.com/tsedio/tsed · Note
• https://t.me/cibsecurity/15404 · Telegram Post