CVE-2023-39967

Public Exploit
Full read and controlled SSRF through URL parameter when testing a request inside wiremock-studio

Description

WireMock is a tool for mocking HTTP services. When certain request URLs like “@127.0.0.1:1234" are used in WireMock Studio configuration fields, the request might be forwarded to an arbitrary service reachable from WireMock’s instance. There are 3 identified potential attack vectors: via “TestRequester” functionality, webhooks and the proxy mode. As we can control HTTP Method, HTTP Headers, HTTP Data, it allows sending requests with the default level of credentials for the WireMock instance. The vendor has discontinued the affected Wiremock studio product and there will be no fix. Users are advised to find alternatives.

Category

10.0
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.60%
Vendor Advisory github.com
Affected: wiremock wiremock
Published at:
Updated at:

References

Link Tags
https://github.com/wiremock/wiremock/security/advisories/GHSA-676j-xrv3-73vc vendor advisory exploit

Frequently Asked Questions

What is the severity of CVE-2023-39967?
CVE-2023-39967 has been scored as a critical severity vulnerability.
How to fix CVE-2023-39967?
To fix CVE-2023-39967, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-39967 being actively exploited in the wild?
It is possible that CVE-2023-39967 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-39967?
CVE-2023-39967 affects wiremock wiremock.
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