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clair/docs/API.md
Quentin Machu e444e93c97 api/database: Add the ability to delete layers
2015-12-04 14:42:21 -05:00

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General

Fetch API Version

It returns the versions of the API and the layer processing engine.

GET /v1/versions
  • The versions are integers.
  • The API version number is raised each time there is an structural change.
  • The Engine version is increased when the a new layer analysis could find new relevant data.

Example

curl -s 127.0.0.1:6060/v1/versions | python -m json.tool

Response

HTTP/1.1 200 OK
{
  "APIVersion": "1",
  "EngineVersion": "1"
}

Fetch Health status

GET /v1/health

Returns 200 if essential services are healthy (ie. database) and 503 otherwise.

This call is also available on the API port + 1, without any security, allowing external monitoring systems to easily access it.

Example

curl -s 127.0.0.1:6060/v1/health | python -m json.tool

curl -s 127.0.0.1:6061/ | python -m json.tool

Success Response

HTTP/1.1 200 OK
{  
   "database":{  
      "IsHealthy":true
   },
   "notifier":{  
      "IsHealthy":true,
      "Details":{  
         "QueueSize":0
      }
   },
   "updater":{  
      "IsHealthy":true,
      "Details":{  
         "HealthIdentifier":"cf65a8f6-425c-4a9c-87fe-f59ddf75fc87",
         "HealthLockOwner":"1e7fce65-ee67-4ca5-b2e9-61e9f5e0d3ed",
         "LatestSuccessfulUpdate":"2015-09-30T14:47:47Z",
         "ConsecutiveLocalFailures":0
      }
   }
}

Error Response

HTTP/1.1 503 Service unavailable
{  
   "database":{  
      "IsHealthy":false
   },
   "notifier":{  
      "IsHealthy":true,
      "Details":{  
         "QueueSize":0
      }
   },
   "updater":{  
      "IsHealthy":true,
      "Details":{  
         "HealthIdentifier":"cf65a8f6-425c-4a9c-87fe-f59ddf75fc87",
         "HealthLockOwner":"1e7fce65-ee67-4ca5-b2e9-61e9f5e0d3ed",
         "LatestSuccessfulUpdate":"2015-09-30T14:47:47Z",
         "ConsecutiveLocalFailures":0
      }
   }
}

Layers

Insert a new Layer

It processes and inserts a new Layer in the database.

POST /v1/layers

Parameters

Name Type Description
ID String Unique ID of the Layer
Path String Absolute path or HTTP link pointing to the Layer's tar file
ParentID String (Optionnal) Unique ID of the Layer's parent

If the Layer has not parent, the ParentID field should be omitted or empty.

Example

curl -s -H "Content-Type: application/json" -X POST -d \
'{
	"ID": "39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8",
	"Path": "https://layers_storage/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8.tar",
	"ParentID": "df2a0347c9d081fa05ecb83669dcae5830c67b0676a6d6358218e55d8a45969c"
}' \
127.0.0.1:6060/v1/layers

Success Response

If the layer has been successfully processed, the version of the engine which processed it is returned.

HTTP/1.1 201 Created
{
    "Version": "1"
}

Error Response

HTTP/1.1 400 Bad Request
{
    "Message": "Layer 39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8's parent (df2a0347c9d081fa05ecb83669dcae5830c67b0676a6d6358218e55d8a45969c) is unknown."
}

It could also return a 415 Unsupported Media Type response with a Message if the request content is not valid JSON.

Delete a Layer

It deletes a layer from the database and any child layers that are dependent on the specified layer.

DELETE /v1/layers/{ID}

Parameters

Name Type Description
ID String Unique ID of the Layer

Example

curl -s -X DELETE 127.0.0.1:6060/v1/layers/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8

Success Response

HTTP/1.1 204 No Content

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

//////////

Get a Layer's operating system

It returns the operating system a given Layer.

GET /v1/layers/{ID}/os

Parameters

Name Type Description
ID String Unique ID of the Layer

Example

curl -s 127.0.0.1:6060/v1/layers/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8/os | python -m json.tool

Success Response

HTTP/1.1 200 OK
{
    "OS": "debian:8",
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

Get a Layer's parent

It returns the parent's ID of a given Layer. It returns an empty ID string when the layer has no parent.

GET /v1/layers/{ID}/parent

Parameters

Name Type Description
ID String Unique ID of the Layer

Example

curl -s 127.0.0.1:6060/v1/layers/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8/parent | python -m json.tool

Success Response

HTTP/1.1 200 OK
{
    "ID": "df2a0347c9d081fa05ecb83669dcae5830c67b0676a6d6358218e55d8a45969c",
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

Get a Layer's package list

It returns the package list of a given Layer.

GET /v1/layers/{ID}/packages

Parameters

Name Type Description
ID String Unique ID of the Layer

Example

curl -s 127.0.0.1:6060/v1/layers/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8/packages | python -m json.tool

Success Response

HTTP/1.1 200 OK
{
    "Packages": [
        {
            "Name": "gcc-4.9",
            "OS": "debian:8",
            "Version": "4.9.2-10"
        },
        [...]
    ]
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

Get a Layer's package diff

It returns the lists of packages a given Layer installs and removes.

GET /v1/layers/{ID}/packages/diff

Parameters

Name Type Description
ID String Unique ID of the Layer

Example

curl -s 127.0.0.1:6060/v1/layers/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8/packages/diff | python -m json.tool

Success Response

HTTP/1.1 200 OK
{
    "InstalledPackages": [
        {
            "Name": "gcc-4.9",
            "OS": "debian:8",
            "Version": "4.9.2-10"
        },
        [...]
    ],
    "RemovedPackages": null
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

Get a Layer's vulnerabilities

It returns the lists of vulnerabilities which affect a given Layer.

GET /v1/layers/{ID}/vulnerabilities(?minimumPriority=Low)

Parameters

Name Type Description
ID String Unique ID of the Layer
minimumPriority Priority (Optionnal) The minimum priority of the returned vulnerabilities. Defaults to High

Example

curl -s "127.0.0.1:6060/v1/layers/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8/vulnerabilities?minimumPriority=Negligible" | python -m json.tool

Success Response

HTTP/1.1 200 OK
{
    "Vulnerabilities": [
        {
            "ID": "CVE-2014-2583",
            "Link": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2583",
            "Priority": "Low",
            "Description": "Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka pam) 1.1.8 allow local users to create aribitrary files or possibly bypass authentication via a .. (dot dot) in the (1) PAM_RUSER value to the get_ruser function or (2) PAM_TTY value to the check_tty funtion, which is used by the format_timestamp_name function.",
            "CausedByPackage": "pam"
        },
        [...]
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

Get vulnerabilities that a layer introduces and removes

It returns the lists of vulnerabilities which are introduced and removed by the given Layer.

GET /v1/layers/{ID}/vulnerabilities/diff(?minimumPriority=Low)

Parameters

Name Type Description
ID String Unique ID of the Layer
minimumPriority Priority (Optionnal) The minimum priority of the returned vulnerabilities

Example

curl -s "127.0.0.1:6060/v1/layers/39bb80489af75406073b5364c9c326134015140e1f7976a370a8bd446889e6f8/vulnerabilities?minimumPriority=Negligible" | python -m json.tool

Success Response

HTTP/1.1 200 OK
{
    "Adds": [
        {
            "ID": "CVE-2014-2583",
            "Link": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2583",
            "Priority": "Low",
            "Description": "Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka pam) 1.1.8 allow local users to create aribitrary files or possibly bypass authentication via a .. (dot dot) in the (1) PAM_RUSER value to the get_ruser function or (2) PAM_TTY value to the check_tty funtion, which is used by the format_timestamp_name function.",
            "CausedByPackage": "pam"
        },
        [...]
    ],
    "Removes": null
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

Get a Layers' vulnerabilities (Batch)

It returns the lists of vulnerabilities which affect the given Layers.

POST /v1/batch/layers/vulnerabilities(?minimumPriority=Low)

Counterintuitively, this request is actually a POST to be able to pass a lot of parameters.

Parameters

Name Type Description
LayersIDs Array of strings Unique IDs of Layers
minimumPriority Priority (Optionnal) The minimum priority of the returned vulnerabilities. Defaults to High

Example

curl -s -H "Content-Type: application/json" -X POST -d \
'{
		"LayersIDs": [
				"a005304e4e74c1541988d3d1abb170e338c1d45daee7151f8e82f8460634d329",
				"f1b10cd842498c23d206ee0cbeaa9de8d2ae09ff3c7af2723a9e337a6965d639"
		]
}' \
127.0.0.1:6060/v1/batch/layers/vulnerabilities

Success Response

HTTP/1.1 200 OK
{
    "a005304e4e74c1541988d3d1abb170e338c1d45daee7151f8e82f8460634d329": {
        "Vulnerabilities": [
            {
                "ID": "CVE-2014-2583",
                "Link": "http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-2583",
                "Priority": "Low",
                "Description": "Multiple directory traversal vulnerabilities in pam_timestamp.c in the pam_timestamp module for Linux-PAM (aka pam) 1.1.8 allow local users to create aribitrary files or possibly bypass authentication via a .. (dot dot) in the (1) PAM_RUSER value to the get_ruser function or (2) PAM_TTY value to the check_tty funtion, which is used by the format_timestamp_name function.",
                "CausedByPackage": "pam"
            },
            [...]
					]
		},
		[...]
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}

Vulnerabilities

Get a vulnerability's informations

It returns all known informations about a Vulnerability and its fixes.

GET /v1/vulnerabilities/{ID}

Parameters

Name Type Description
ID String Unique ID of the Vulnerability

Example

curl -s 127.0.0.1:6060/v1/vulnerabilities/CVE-2015-0235 | python -m json.tool

Success Response

HTTP/1.1 200 OK
{
    "ID": "CVE-2015-0235",
    "Link": "https://security-tracker.debian.org/tracker/CVE-2015-0235",
    "Priority": "High",
    "Description": "Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-dependent attackers to execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function, aka \"GHOST.\"",
    "AffectedPackages": [
        {
            "Name": "eglibc",
            "OS": "debian:7",
            "AllVersions": false,
            "BeforeVersion": "2.13-38+deb7u7"
        },
        {
            "Name": "glibc",
            "OS": "debian:8",
            "AllVersions": false,
            "BeforeVersion": "2.18-1"
        },
        {
            "Name": "glibc",
            "OS": "debian:9",
            "AllVersions": false,
            "BeforeVersion": "2.18-1"
        },
        {
            "Name": "glibc",
            "OS": "debian:unstable",
            "AllVersions": false,
            "BeforeVersion": "2.18-1"
        },
        {
            "Name": "eglibc",
            "OS": "debian:6",
            "AllVersions": true,
            "BeforeVersion": "",
        }
    ],
}

The AffectedPackages array represents the list of affected packages and provides the first known versions in which the Vulnerability has been fixed - each previous versions may be vulnerable. If AllVersions is equal to true, no fix exists, thus, all versions may be vulnerable.

Error Response

HTTP/1.1 404 Not Found
{
    "Message":"the resource cannot be found"
}

Insert a new Vulnerability

It manually inserts a new Vulnerability.

POST /v1/vulnerabilities

Parameters

Name Type Description
ID String Unique ID of the Vulnerability
Link String Link to the Vulnerability tracker
Priority Priority Priority of the Vulnerability
AffectedPackages Array of Package Affected packages (Name, OS) and fixed version (or all versions)

If no fix exists for a package, AllVersions should be set to true.

Valid Priorities are based on Ubuntu CVE Tracker/README

  • Unknown is either a security problem that has not been ssigned to a priority yet or a priority that our system did not recognize
  • Negligible is technically a security problem, but is only theoretical in nature, requires a very special situation, has almost no install base, or does no real damage. These tend not to get backport from upstreams, and will likely not be included in security updates unless there is an easy fix and some other issue causes an update.
  • Low is a security problem, but is hard to exploit due to environment, requires a user-assisted attack, a small install base, or does very little damage. These tend to be included in security updates only when higher priority issues require an update, or if many low priority issues have built up.
  • Medium is a real security problem, and is exploitable for many people. Includes network daemon denial of service attacks, cross-site scripting, and gaining user privileges. Updates should be made soon for this priority of issue.
  • High is a real problem, exploitable for many people in a default installation. Includes serious remote denial of services, local root privilege escalations, or data loss.
  • Critical is a world-burning problem, exploitable for nearly all people in a default installation of Ubuntu. Includes remote root privilege escalations, or massive data loss.
  • Defcon1 is a Critical problem which has been manually highlighted by the team. It requires an immediate attention.

Example

curl -s -H "Content-Type: application/json" -X POST -d \
'{
 "ID": "CVE-2015-0235",
 "Link": "https:security-tracker.debian.org/tracker/CVE-2015-0235",
 "Priority": "High",
 "Description": "Heap-based buffer overflow in the __nss_hostname_digits_dots function in glibc 2.2, and other 2.x versions before 2.18, allows context-dependent attackers to execute arbitrary code via vectors related to the (1) gethostbyname or (2) gethostbyname2 function, aka \"GHOST.\"",
 "AffectedPackages": [
   {
       "Name": "eglibc",
       "OS": "debian:7",
       "BeforeVersion": "2.13-38+deb7u7"
   },
   {
       "Name": "glibc",
       "OS": "debian:8",
       "BeforeVersion": "2.18-1"
   },
   {
       "Name": "glibc",
       "OS": "debian:9",
       "BeforeVersion": "2.18-1"
   },
   {
       "Name": "glibc",
       "OS": "debian:unstable",
       "BeforeVersion": "2.18-1"
   },
   {
       "Name": "eglibc",
       "OS": "debian:6",
       "AllVersions": true,
       "BeforeVersion": ""
   }
 ]
}' \
127.0.0.1:6060/v1/vulnerabilities

Success Response

HTTP/1.1 201 Created

Error Response

HTTP/1.1 400 Bad Request
{
	"Message":"Could not insert a vulnerability which has an invalid priority"
}

It could also return a 415 Unsupported Media Type response with a Message if the request content is not valid JSON.

Update a Vulnerability

It updates an existing Vulnerability.

PUT /v1/vulnerabilities/{ID}

The Link, Priority and Description fields can be updated. FixedIn packages are added to the vulnerability. However, as a vulnerability can be fixed by only one package on a given branch (OS, Name): old FixedIn packages, which belong to the same branch as a new added one, will be removed.

Parameters

Name Type Description
Link String Link to the Vulnerability tracker
Priority Priority Priority of the Vulnerability
FixedIn Array of Package Affected packages (Name, OS) and fixed version (or all versions)

If no fix exists for a package, AllVersions should be set to true.

Example

curl -s -H "Content-Type: application/json" -X PUT -d '{"Priority": "Critical" }' 127.0.0.1:6060/v1/vulnerabilities/CVE-2015-0235

Success Response

HTTP/1.1 204 No content

Error Response

HTTP/1.1 404 Not Found
{
    "Message":"the resource cannot be found"
}

It could also return a 415 Unsupported Media Type response with a Message if the request content is not valid JSON.

Delete a Vulnerability

It deletes an existing Vulnerability.

DEL /v1/vulnerabilities/{ID}

Be aware that it does not prevent fetcher's to re-create it. Therefore it is only useful to remove manually inserted vulnerabilities.

Parameters

Name Type Description
ID String Unique ID of the Vulnerability

Example

curl -s -X DEL 127.0.0.1:6060/v1/vulnerabilities/CVE-2015-0235

Success Response

HTTP/1.1 204 No content

Error Response

HTTP/1.1 404 Not Found
{
    "Message":"the resource cannot be found"
}

Get layers introducing a vulnerability

It gets all the layers (their IDs) that introduce the given vulnerability.

GET /v1/vulnerabilities/:id/introducing-layers

Parameters

Name Type Description
ID String Unique ID of the Vulnerability

Example

curl -s -X GET 127.0.0.1:6060/v1/vulnerabilities/CVE-2015-0235/introducing-layers

Success Response

HTTP/1.1 200
{
	"IntroducingLayers":[
		"fb9cc58bde0c0a8fe53e6fdd23898e45041783f2d7869d939d7364f5777fde6f"
	]
}

Error Response

HTTP/1.1 404 Not Found
{
    "Message":"the resource cannot be found"
}

Get layers affected by a vulnerability

It returns whether the specified Layers are vulnerable to the given Vulnerability or not.

POST /v1/vulnerabilities/{ID}/affected-layers

Counterintuitively, this request is actually a POST to be able to pass a lot of parameters.

Parameters

Name Type Description
ID String Unique ID of the Vulnerability
LayersIDs Array of strings Unique IDs of Layers

Example

curl -s -H "Content-Type: application/json" -X POST -d \
'{
		"LayersIDs": [
				"a005304e4e74c1541988d3d1abb170e338c1d45daee7151f8e82f8460634d329",
				"f1b10cd842498c23d206ee0cbeaa9de8d2ae09ff3c7af2723a9e337a6965d639"
		]
}' \
127.0.0.1:6060/v1/vulnerabilities/CVE-2015-0235/affected-layers

Success Response

HTTP/1.1 200 OK
{
   "f1b10cd842498c23d206ee0cbeaa9de8d2ae09ff3c7af2723a9e337a6965d639": {
        "Vulnerable": false
   },
   "fb9cc58bde0c0a8fe53e6fdd23898e45041783f2d7869d939d7364f5777fde6f": {
        "Vulnerable": true
   }
}

Error Response

Returned when the Layer or the Vulnerability does not exist.

HTTP/1.1 404 Not Found
{
    "Message": "the resource cannot be found"
}