adjust to new dev-model
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Michael Jerger
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2 changed files with 136 additions and 36 deletions
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# Threat Analysis for RemoteLogin propagation
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See also [1] for getting an idea about the analysis.
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## Technical Background
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### Control Flow
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```mermaid
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sequenceDiagram
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participant fs as foreign_repository_server
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participant os as our_repository_server
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fs ->> os: post /api/activitypub/repository-id/1/inbox {Like-Activity}
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activate os
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os ->> repository: load "1"
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os ->> os: validate actor id inputs
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activate os
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os ->> FederationInfo: get by Host
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os ->> os: if FederatonInfo not found
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activate os
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os ->> fs: get .well-known/nodeinfo
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os ->> NodeInfoWellKnown: create & validate
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os ->> fs: get api/v1/nodeinfo
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os ->> NodeInfo: create & validate
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os ->> FederationInfo: create
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deactivate os
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os ->> ForgeLike: validate
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deactivate os
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os ->> user: search for user with actor-id
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os ->> os: create user if not found
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activate os
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os ->> fs: get /api/activitypub/user-id/{id from actor}
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os ->> ForgePerson: validate
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os ->> user: create user from ForgePerson
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deactivate os
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os ->> repository: execute star
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os ->> FederationInfo: update latest activity
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os -->> fs: 200 ok
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deactivate os
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```
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### Data transferred
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```
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# NodeInfoWellKnown
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{"links":[
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{"href":"https://federated-repo.prod.meissa.de/api/v1/nodeinfo",
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"rel":"http://nodeinfo.diaspora.software/ns/schema/2.1"}]}
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# NodeInfo
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{"version":"2.1",
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"software":{"name":"gitea",
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...}}
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# LikeActivity
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{"id": "https://repo.prod.meissa.de/api/v1/activitypub/user-id/1/outbox/12345",
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"type": "Like",
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"actor": "https://repo.prod.meissa.de/api/v1/activitypub/user-id/1",
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"object": "https://codeberg.org/api/v1/activitypub/repository-id/12"
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"startTime": "2014-12-31T23:00:00-08:00"
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}
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# Person
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{"id":"https://federated-repo.prod.meissa.de/api/v1/activitypub/user-id/10",
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"type":"Person",
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"preferredUsername":"stargoose9",
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"name": "goose going to star the repo",
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"publicKey":{"id":"https://federated-repo.prod.meissa.de/api/v1/activitypub/user-id/10#main-key",
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"owner":"https://federated-repo.prod.meissa.de/api/v1/activitypub/user-id/10",
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"publicKeyPem":"-----BEGIN PUBLIC KEY-----\nMIIBoj...XAgMBAAE=\n-----END PUBLIC KEY-----\n"}}
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```
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### Data Flow
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```mermaid
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flowchart TD
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A(User) --> |stars a federated repository| B(foreign repository server)
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B --> |Like Activity| C(our repository server)
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C --> |get NodeInfoWellKnown| B
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C --> |get NodeInfo| B
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C --> |get Person Actor| B
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C --> |cache/create federated user locally| D(our database)
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C --> |cache/create NodeInfo locally| D(our database)
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C --> |add star to repo locally| D
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```
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## Analysis
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### Assets
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1. **Service Availability**: The availability of our or foreign servers.
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2. **Instance Reputation**: We hope our project does not live on a spam instance.
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3. **Project Reputation**: The reputation of an individual project.
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### Actors
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1. **Script Kiddies**: Boored teens, willing to do some illegal stuff without deep knowledge of tech details but broad knowledge across internet discussions. Able to do some bash / python scripting.
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2. **Experienced Hacker**: Hacker with deep knowledge.
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3. **Hacker**: Hacker with some knowledge.
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4. **Malicious Fediverse Member**: Malicious Members of the fediverse, able to operate malicious forge instances.
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5. **Malicious Forge Admin**: Admin of good reputation forge instance in the fediverse.
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6. **Federated User**: Members of good reputation forge instance in the fediverse.
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### Threat
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1.
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### Mitigations
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1.
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### DREAD-Score
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| Threat | Damage | Reproducibility | Exploitability | Affected Users | Discoverability | Mitigations |
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| :----- | :------ | :-------------- | :------------- | :------------- | :-------------- | :---------- |
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| 1. | ... tbd | | | | | |
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| 2. | ... tbd | | | | | |
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Threat Score with values between 1 - 6
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* Damage – how severe would the damage be if the attack is successful? 6 is a very bad damage.
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* Reproducibility – how easy would the attack be reproducible? 6 is very easy to reproduce.
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* Exploitability – How much time, effort and experience are necessary to exploit the threat? 6 is very easy to make.
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* Affected Users – if a threat were exploited, how many percentage of users would be affected?
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* Discoverability – How easy can an attack be discovered? Does the attacker have to expect prosecution? 6 is very hard to discover / is not illegal
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## Contributors
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## Reference
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[1]: https://owasp.org/www-community/Threat_Modeling_Process
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@ -108,24 +108,12 @@ git remote add forgejo git@codeberg.org:forgejo/forgejo.git
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# rebase on top of forgejo/forge-development
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git switch forgejo
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git fetch forgejo
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git reset --hard forgejo/forgejo-development
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git push --force
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git pull
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git push
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git switch forgejo-federated-star
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git rebase forgejo
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git push --force
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# continue local development after rebase & force-push has happened
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git reset --hard origin/forgejo-federated-star
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```
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# provide testinstance
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``` bash
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git switch test-release
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git rebase --onto forgejo-federated-star
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git merge forgejo/forgejo-branding
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git push --force
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git merge forgejo
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git push
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```
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# generate swagger api client
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@ -134,23 +122,3 @@ go run github.com/go-swagger/go-swagger/cmd/swagger@v0.30.5 generate client -f '
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# Documentation for learn & reference
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# Thoughts on testing
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I would like to be able to quickly test a change in the repo code.
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For that i need:
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A test server with federation enabled
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A test user
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A test repo
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A test auth token (?)
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A test request as input value to the API
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An expected result for comparison with the output value.
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Tests that provide some examples are:
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tests/integration/api_activitypub_person_test.go
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tests/integration/api_token_test.go
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maybe tests/integration/api_repo_test.go
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