CVE-2023-41338
Assigner: GitHub_M
Published: 2023-09-08T18:17:18.044Z
State: PUBLISHED
title: Vulnerability in Ctx.IsFromLocal() in gofiber
problemTypes: descriptions: cweId: CWE-670
description: CWE-670: Always-Incorrect Control Flow Implementation
type: CWE
metrics: cvssV3_1: attackComplexity: LOW
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 5.3
baseSeverity: MEDIUM
confidentialityImpact: LOW
integrityImpact: NONE
privilegesRequired: NONE
scope: UNCHANGED
userInteraction: NONE
vectorString: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
version: 3.1
affected: vendor: gofiber
product: fiber
versions: version: < 2.49.2
status: affected
descriptions: value: Fiber is an Express inspired web framework built in the go language. Versions of gofiber prior to 2.49.2 did not properly restrict access to localhost. This issue impacts users of our project who rely on the `ctx.IsFromLocal` method to restrict access to localhost requests. If exploited, it could allow unauthorized access to resources intended only for localhost. Setting `X-Forwarded-For: 127.0.0.1` in a request from a foreign host, will result in true for `ctx.IsFromLocal`. Access is limited to the scope of the affected process. This issue has been patched in version `2.49.2` with commit `b8c9ede6`. Users are advised to upgrade. There are no known workarounds to remediate this vulnerability without upgrading to the patched version. 
source: advisory: GHSA-3q5p-3558-364f
discovery: UNKNOWN