GHSA-r978-9m6m-6gm6: Infoleak
Information disclosure in persistent watchers handling in Apache ZooKeeper due to missing ACL check. It allows an attacker to monitor child znodes by attaching a persistent watcher (addWatch command) to a parent which the attacker has already access to. ZooKeeper server doesn't do ACL check when the persistent watcher is triggered and as a consequence, the full path of znodes that a watch event gets triggered upon is exposed to the owner of the watcher. It's important to note that only the path is exposed by this vulnerability, not the data of znode, but since znode path can contain sensitive information like user name or login ID, this issue is potentially critical.
Users are recommended to upgrade to version 3.9.2, 3.8.4 which fixes the issue.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
maven/org.apache.zookeeper:zookeeperto a version that resolves this vulnerability.Fixed in 3.9.2 - Upgrade
Upgrade
maven/org.apache.zookeeper:zookeeperto a version that resolves this vulnerability.Fixed in 3.8.4 - Upgrade
Upgrade
Apache ZooKeeperto a version that resolves this vulnerability.Fixed in 3.9.2 - Upgrade
Upgrade
Apache ZooKeeperto a version that resolves this vulnerability.Fixed in 3.8.4
Event History
Frequently Asked Questions
What is the severity of GHSA-r978-9m6m-6gm6?
The severity of GHSA-r978-9m6m-6gm6 is classified as high due to the potential for information disclosure.
How do I fix GHSA-r978-9m6m-6gm6?
To fix GHSA-r978-9m6m-6gm6, upgrade Apache ZooKeeper to version 3.9.2 or 3.8.4.
What systems are affected by GHSA-r978-9m6m-6gm6?
GHSA-r978-9m6m-6gm6 affects Apache ZooKeeper versions between 3.6.0 and 3.7.2, as well as certain versions of 3.9.x and 3.8.x.
Is there a workaround for GHSA-r978-9m6m-6gm6?
While an upgrade is the recommended solution, temporary mitigation may involve restricting access to child znodes.
What type of vulnerability is GHSA-r978-9m6m-6gm6?
GHSA-r978-9m6m-6gm6 is an information disclosure vulnerability due to inadequate access control checks.