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Add client-response Threat Model and update JS ClientsRequests #19656

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Add client-response Threat Model and update JS ClientsRequests #19656

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4 changes: 4 additions & 0 deletions javascript/ql/lib/change-notes/2025-06-03-client-response-threatmodel.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,4 @@
---
category: minorAnalysis
---
* Added support for ClientRequest being part of the `client-response` threat model versus part of `response` threat model.
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Suggested change
* Added support for ClientRequest being part of the `client-response` threat model versus part of `response` threat model.
* Responses from outgoing HTTP requests will now be included as taint sources when the `local` threat model is used.

I'd try to use a change note that's easier to understand for external users.

2 changes: 1 addition & 1 deletion javascript/ql/lib/semmle/javascript/frameworks/ClientRequests.qll
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Expand Up @@ -947,7 +947,7 @@ module ClientRequest {
private class ClientRequestThreatModel extends ThreatModelSource::Range {
ClientRequestThreatModel() { this = any(ClientRequest r).getAResponseDataNode() }

override string getThreatModel() { result = "response" }
override string getThreatModel() { result = "client-response" }
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override string getThreatModel() { result = "client-response" }
override string getThreatModel() { result = ["response", "browser-response"] }

To be forward compatible with the planned solution. I'll open a PR to make this a bit more accurate.


override string getSourceType() { result = "HTTP response data" }
}
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4 changes: 4 additions & 0 deletions shared/threat-models/change-notes/2025-06-03-client-response-threatmodel.md
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---
category: minorAnalysis
---
* Add support for `client-response` threat model.
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I don't think we need change notes for qlpacks

2 changes: 2 additions & 0 deletions shared/threat-models/ext/threat-model-grouping.model.yml
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Expand Up @@ -18,6 +18,8 @@ extensions:
- ["stdin", "local"]
- ["file", "local"]
- ["windows-registry", "local"]
# Client-side threat models for request responses.
- ["client-response", "local"]
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Suggested change
- ["client-response", "local"]
- ["browser-response", "local"]


# Android threat models
- ["android-external-storage-dir", "android"]
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