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.
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Affected Vendors & Products
References
History
No history.
MITRE
Status: PUBLISHED
Assigner: GitHub_M
Published: 2021-08-16T20:50:09
Updated: 2024-08-03T23:33:56.183Z
Reserved: 2021-05-12T00:00:00
Link: CVE-2021-32827
Vulnrichment
No data.
NVD
Status : Analyzed
Published: 2021-08-16T21:15:08.373
Modified: 2022-07-02T18:21:03.563
Link: CVE-2021-32827
Redhat
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