GCP - API Keys Unauthenticated Enum

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API Keys

有关 API 密钥的更多信息，请查看：

GCP - API Keys Enum

OSINT techniques

Google API 密钥被任何类型的应用广泛使用，这些应用从客户端使用。通常可以在网站源代码或网络请求中找到它们，在移动应用中，或者仅仅是在像 Github 这样的平台上搜索正则表达式。

正则表达式是：AIza[0-9A-Za-z_-]{35}

例如，可以在 Github 上搜索： https://github.com/search?q=%2FAIza%5B0-9A-Za-z_-%5D%7B35%7D%2F&type=code&ref=advsearch

Check origin GCP project

这对于检查您找到的 API 密钥属于哪个 GCP 项目非常有用。我们有不同的选项：

  • 联系 https://www.googleapis.com/identitytoolkit/v3/relyingparty/getProjectConfig?key=<api-key>

为了简洁起见，输出被截断，但在完整输出中，项目 ID 出现了超过 5 次。

curl -s "https://www.googleapis.com/identitytoolkit/v3/relyingparty/getProjectConfig?key=AIzaSyD[...]uE8Y"

{
"error": {
"code": 403,
"message": "Identity Toolkit API has not been used in project 943955951114 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/identitytoolkit.googleapis.com/overview?project=943955951114 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.",
[...]
  • 联系 https://www.googleapis.com/identitytoolkit/v3/relyingparty/getProjectConfig?key=<api-key>

为了简洁起见，输出被截断，但在完整输出中，项目 ID 出现了超过 5 次。

curl -s "https://identitytoolkit.googleapis.com/v1/projects?key=AIzaSyD[...]uE8Y"

{
"error": {
"code": 403,
"message": "Identity Toolkit API has not been used in project 943955951114 before or it is disabled. Enable it by visiting https://console.developers.google.com/apis/api/identitytoolkit.googleapis.com/overview?project=943955951114 then retry. If you enabled this API recently, wait a few minutes for the action to propagate to our systems and retry.",
[...]
  • [这个不再有效了!] apikeys.keys.lookup
# If you have permissions
gcloud services api-keys lookup AIzaSyD[...]uE8Y
name: projects/5[...]6/locations/global/keys/28d[...]e0e
parent: projects/5[...]6/locations/global

# If you don't, you can still see the project ID in the error msg
gcloud services api-keys lookup AIzaSy[...]Qbkd_oYE
ERROR: (gcloud.services.api-keys.lookup) PERMISSION_DENIED: Permission 'apikeys.keys.lookup' denied on resource project.
Help Token: ARD_zUaNgNilGTg9oYUnMhfa3foMvL7qspRpBJ-YZog8RLbTjCTBolt_WjQQ3myTaOqu4VnPc5IbA6JrQN83CkGH6nNLum6wS4j1HF_7HiCUBHVN
- '@type': type.googleapis.com/google.rpc.PreconditionFailure
violations:
- subject: ?error_code=110002&service=cloudresourcemanager.googleapis.com&permission=serviceusage.apiKeys.getProjectForKey&resource=projects/89123452509
type: googleapis.com
- '@type': type.googleapis.com/google.rpc.ErrorInfo
domain: apikeys.googleapis.com
metadata:
permission: serviceusage.apiKeys.getProjectForKey
resource: projects/89123452509
service: cloudresourcemanager.googleapis.com
reason: AUTH_PERMISSION_DENIED

暴力破解 API 端点

由于您可能不知道项目中启用了哪些 API，因此运行工具 https://github.com/ozguralp/gmapsapiscanner 并检查 您可以使用 API 密钥访问的内容 将会很有趣。

Tip

学习并练习 AWS Hacking:HackTricks Training AWS Red Team Expert (ARTE)
学习并练习 GCP Hacking: HackTricks Training GCP Red Team Expert (GRTE)
学习并练习 Az Hacking: HackTricks Training Azure Red Team Expert (AzRTE)

支持 HackTricks