CVE-2021-32827 – org.mock-server:mockserver

Package

Manager: maven
Name: org.mock-server:mockserver
Vulnerable Version: >=0 <=5.11.2

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:N/I:H/A:N

CVSS v4.0: CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00314 pctl0.53963

Details

Injection in MockServer 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.

Metadata

Created: 2021-08-30T16:24:38Z
Modified: 2022-02-08T21:01:17Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/08/GHSA-v3cg-h3f6-2242/GHSA-v3cg-h3f6-2242.json
CWE IDs: ["CWE-74", "CWE-79"]
Alternative ID: GHSA-v3cg-h3f6-2242
Finding: F425
Auto approve: 1