Added async search plugin security info (#859)

* Added async search plugin security info

Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>

* Incorporated review comments

Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>

* Incorporated editorial comments

Signed-off-by: Fanit Kolchina <kolchfa@amazon.com>
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kolchfa-aws 2022-08-10 10:35:52 -04:00 committed by GitHub
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@ -74,3 +74,60 @@ Because they have different backend roles, an asynchronous search submitted by `
`judy` needs to have at least the superset of all roles that `elon` has to see `elon`'s asynchronous searches.
For example, if `judy` has five backend roles and `elon` has one of these roles, then `judy` can see asynchronous searches submitted by `elon`, but `elon` cant see the asynchronous searches submitted by `judy`. This means that `judy` can perform GET and DELETE operations on asynchronous searches submitted by `elon`, but not the reverse.
If none of the users have any backend roles, all three will be able to see the others' searches.
For example, consider three users: `judy`, `elon`, and `jack`.
`judy`, `elon`, and `jack` have no backend roles set up:
```json
PUT _plugins/_security/api/internalusers/judy
{
"password": "judy",
"backend_roles": [],
"attributes": {}
}
```
```json
PUT _plugins/_security/api/internalusers/elon
{
"password": "elon",
"backend_roles": [],
"attributes": {}
}
```
```json
PUT _plugins/_security/api/internalusers/jack
{
"password": "jack",
"backend_roles": [],
"attributes": {}
}
```
Both `judy` and `elon` have full access to asynchronous search:
```json
PUT _plugins/_security/api/rolesmapping/async_full_access
{
"backend_roles": [],
"hosts": [],
"users": ["judy","elon"]
}
```
`jack` has read access to asynchronous search results:
```json
PUT _plugins/_security/api/rolesmapping/async_read_access
{
"backend_roles": [],
"hosts": [],
"users": ["jack"]
}
```
Because none of the users have backend roles, they will be able to see each other's asynchronous searches. So, if `judy` submits an asynchronous search, `elon`, who has full access, will be able to see that search. `jack`, who has read access, will also be able to see `judy`'s asynchronous search.