Cyber Resilience

CVE-2021-44659

CriticalPublic PoC

Published: 22 December 2021

Published
22 December 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0199 84.0th percentile
Risk Priority 21 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-44659 is a critical-severity SSRF (CWE-918) vulnerability in Thoughtworks Gocd. Its CVSS base score is 9.8 (Critical).

Operationally, ranked in the top 16.0% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

EU & UK References

Vulnerability details

Adding a new pipeline in GoCD server version 21.3.0 has a functionality that could be abused to do an un-intended action in order to achieve a Server Side Request Forgery (SSRF). NOTE: the vendor's position is that the observed behavior…

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is not a vulnerability, because the product's design allows an admin to configure outbound requests

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

thoughtworks
gocd
21.3.0

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-918

Penetration testing attempts server-side requests to internal resources, identifying SSRF weaknesses for remediation.

addresses: CWE-918

Outbound connections to external resources can be monitored and limited at the boundary, reducing SSRF impact.

addresses: CWE-918

Validates server-side URLs and resource references to block SSRF attempts.

addresses: CWE-918

Detects server-side request forgery through monitoring of unexpected outbound connections.

References