Ecosyste.ms: Advisories

Security Advisories: MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXI3NzMtcG13My1mNG1y

Open Redirect in koa-remove-trailing-slashes

The package koa-remove-trailing-slashes before 2.0.2 are vulnerable to Open Redirect via the use of trailing double slashes in the URL when accessing the vulnerable endpoint (such as https://example.com//attacker.example/). The vulnerable code is in index.js::removeTrailingSlashes(), as the web server uses relative URLs instead of absolute URLs.

Permalink: https://github.com/advisories/GHSA-r773-pmw3-f4mr
JSON: https://advisories.ecosyste.ms/api/v1/advisories/MDE2OlNlY3VyaXR5QWR2aXNvcnlHSFNBLXI3NzMtcG13My1mNG1y
Source: GitHub Advisory Database
Origin: Unspecified
Severity: Moderate
Classification: General
Published: over 2 years ago
Updated: 8 months ago

CVSS Score: 5.4
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N

Identifiers: GHSA-r773-pmw3-f4mr, CVE-2021-23384
References:

• https://nvd.nist.gov/vuln/detail/CVE-2021-23384
• https://snyk.io/vuln/SNYK-JS-KOAREMOVETRAILINGSLASHES-1085708
• https://github.com/vgno/koa-remove-trailing-slashes/commit/e7ce4000e9fe4d957332df1056640a22ebea28ee
• https://github.com/vgno/koa-remove-trailing-slashes/blame/6a01ba8fd019bd3ece44879c553037ad96ba7d47/index.js#L31
• https://github.com/advisories/GHSA-r773-pmw3-f4mr

Repository: https://github.com/vgno/koa-remove-trailing-slashes
Blast Radius: 4.9

Affected Packages