PT-2022-11821 · Npm · Uri-Template-Lite

Denys Vozniuk · CVE-2021-43309 · Published 2022-08-24 · Updated 2023-07-18

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions uri-template-lite npm package (affected versions not specified)

Description An exponential ReDoS (Regular Expression Denial of Service) can be triggered in the uri-template-lite npm package when an attacker is able to supply arbitrary input to the URI.expand method. This issue allows an attacker to cause a denial of service by exploiting the regular expression engine.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability. As a temporary workaround, consider restricting the input to the URI.expand method to prevent arbitrary input from being processed.

Exploit

DoS

Weakness Enumeration

CWE-1333

CWE-697

Related Identifiers

CVE-2021-43309

GHSA-CHW2-6C7R-37P7

Affected Products

Uri-Template-Lite

References · 9

• 🔥 https://research.jfrog.com/vulnerabilities/uri-template-lite-redos-xray-211351 · Exploit
• https://osv.dev/vulnerability/CVE-2021-43309 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-43309 · Security Note
• https://osv.dev/vulnerability/GHSA-chw2-6c7r-37p7 · Vendor Advisory
• https://github.com/litejs/uri-template-lite/compare/v22.1.0...v22.9.0 · Note
• https://github.com/litejs/uri-template-lite/commits/v22.9.0 · Note
• https://github.com/litejs/uri-template-lite/commit/cbeec2b2a275d819fb534137a155df14729706f8 · Note
• https://github.com/litejs/uri-template-lite · Note
• https://t.me/cvenotify/35086 · Telegram Post