CVE-2024-42323 PoC — Apache HertzBeat: RCE by snakeYaml deser load malicious xml

Source

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2024/CVE-2024-42323.yaml

Associated Vulnerability

Title: Apache HertzBeat: RCE by snakeYaml deser load malicious xml (CVE-2024-42323)
Description:SnakeYaml Deser Load Malicious xml rce vulnerability in Apache HertzBeat (incubating). This vulnerability can only be exploited by authorized attackers. This issue affects Apache HertzBeat (incubating): before 1.6.0. Users are recommended to upgrade to version 1.6.0, which fixes the issue.

Description

Apache HertzBeat versions before 1.6.0 use a vulnerable version of the SnakeYAML library to parse YAML files imported through the `/api/monitors/import` and `/api/alert/defines/import` endpoints. An authenticated user can submit a YAML file that constructs an `org.h2.jdbc.JdbcConnection` with a malicious H2 in-memory JDBC URL whose `INIT` block contains a `CREATE ALIAS ... $$ ... $$` Java source snippet, achieving remote code execution inside the HertzBeat JVM. The vulnerability is exploitable in default deployments because the official Docker image and quickstart documentation ship with the well-known default credentials `admin:hertzbeat`, which the template uses for chained authentication.

File Snapshot

Remarks

1. It is advised to access via the original source first.

2. Local POC snapshots are reserved for subscribers — if the original source is unavailable, the local mirror is part of the paid plan.

View subscription plans →