VDB
KO
CRITICAL 9.8

GHSA-xw7x-h9fj-p2c7

OpenTelemetry: Unsafe Deserialization in RMI Instrumentation may Lead to Remote Code Execution

Quick fix

GHSA-xw7x-h9fj-p2c7 — io.opentelemetry.javaagent:opentelemetry-javaagent: upgrade to the fixed version with the command below. 

# pom.xml: bump <version>2.26.1</version> for io.opentelemetry.javaagent:opentelemetry-javaagent

Details

In versions prior to 2.26.1, the RMI instrumentation registered a custom endpoint that deserialized incoming data without applying serialization filters. An attacker with network access to a JMX or RMI port on an instrumented JVM could exploit this to potentially achieve remote code execution. All three of the following conditions must be true to exploit this vulnerability: 1. OpenTelemetry Java instrumentation is attached as a Java agent (`-javaagent`) 2. An RMI endpoint is network-reachable (e.g. JMX remote port, an RMI registry, or any application-exported RMI service) 3. A gadget-chain-compatible library is present on the classpath

### Impact Arbitrary remote code execution with the privileges of the user running the instrumented JVM.

### Recommendation Upgrade to version 2.26.1 or later.

### Workarounds Set the following system property to disable the RMI integration:

``` -Dotel.instrumentation.rmi.enabled=false ```

### Credits This vulnerability was responsibly disclosed in coordination with Datadog.

Are you affected?

Enter the version of the package you're using.

Affected packages

Maven / io.opentelemetry.javaagent:opentelemetry-javaagent
Introduced in: 0 Fixed in: 2.26.1
Fix # pom.xml: bump <version>2.26.1</version> for io.opentelemetry.javaagent:opentelemetry-javaagent

References