koa-remove-trailing-slashes up to 2.0.1 removeTrailingSlashes redirect

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CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

A vulnerability, which was classified as critical, was found in koa-remove-trailing-slashes up to 2.0.1. Affected is the function index.js::removeTrailingSlashes. The manipulation with an unknown input leads to a redirect vulnerability. CWE is classifying the issue as CWE-601. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The weakness was shared 05/18/2021 as SNYK-JS-KOAREMOVETRAILINGSLASHES-1085708. The advisory is available at snyk.io. This vulnerability is traded as CVE-2021-23384 since 01/08/2021. The exploitability is told to be easy. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

Upgrading to version 2.0.2 eliminates this vulnerability.

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CPE 2.3infoedit

CPE 2.2infoedit

CVSSv3infoedit

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2infoedit

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfoedit

Class: Redirect
CWE: CWE-601
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfoedit

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfoedit

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: koa-remove-trailing-slashes 2.0.2

Timelineinfoedit

01/08/2021 CVE assigned
05/18/2021 +129 days Advisory disclosed
05/18/2021 +0 days VulDB entry created
05/22/2021 +4 days VulDB last update

Sourcesinfoedit

Advisory: SNYK-JS-KOAREMOVETRAILINGSLASHES-1085708
Status: Confirmed

CVE: CVE-2021-23384 (🔒)

Entryinfoedit

Created: 05/18/2021 09:15 AM
Updated: 05/22/2021 10:06 AM
Changes: (1) source_cve_cna
Complete: 🔍

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