CVE-2021-32827
Assigner: GitHub_M
Published: 2021-08-16T20:50:09
State: PUBLISHED
affected: product: mockserver
vendor: mock-server
versions: status: affected
version: all
descriptions: value: MockServer is open source software which enables easy mocking of any system you integrate with via HTTP or HTTPS. An attacker that can trick a victim into visiting a malicious site while running MockServer locally, will be able to run arbitrary code on the MockServer machine. With an overly broad default CORS configuration MockServer allows any site to send cross-site requests. Additionally, MockServer allows you to create dynamic expectations using Javascript or Velocity templates. Both engines may allow an attacker to execute arbitrary code on-behalf of MockServer. By combining these two issues (Overly broad CORS configuration + Script injection), an attacker could serve a malicious page so that if a developer running MockServer visits it, they will get compromised. For more details including a PoC see the referenced GHSL-2021-059.
metrics: cvssV3_1: attackComplexity: HIGH
attackVector: NETWORK
availabilityImpact: NONE
baseScore: 6.1
baseSeverity: MEDIUM
confidentialityImpact: NONE
integrityImpact: HIGH
privilegesRequired: NONE
scope: CHANGED
userInteraction: REQUIRED
vectorString: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N
version: 3.1
problemTypes: descriptions: cweId: CWE-74
description: CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
type: CWE
source: advisory: GHSL-2021-059
discovery: UNKNOWN
title: Arbitrary code execution in MockServer
x_generator: engine: Vulnogram 0.0.9