| Package | Affected versions | Patched versions |
|---|---|---|
| io.dropwizard:dropwizard-validation | ≥ 1.3.0-rc1, < 1.3.19≥ 2.0.0, < 2.0.2 | 1.3.192.0.2 |
| dropwizard validation | ≥ 2.0.0, < 2.0.2< 1.3.19 | 2.0.21.3.19 |
| blockchain platform | < 21.1.2 | 21.1.2 |
Dropwizard-Validation before 1.3.19, and 2.0.2 may allow arbitrary code execution on the host system, with the privileges of the Dropwizard service account, by injecting arbitrary Java Expression Language expressions when using the self-validating feature.
A server-side template injection was identified in the self-validating (@SelfValidating) feature of dropwizard-validation enabling attackers to inject arbitrary Java EL expressions, leading to Remote Code Execution (RCE) vulnerability.
If you're using a self-validating bean (via @SelfValidating), an upgrade to Dropwizard 1.3.19 or 2.0.2 is strongly recommended.
This issue may allow Remote Code Execution (RCE), allowing to run arbitrary code on the host system (with the privileges of the Dropwizard service account privileges) by injecting arbitrary Java Expression Language (EL) expressions when using the self-validating feature (@SelfValidating, @SelfValidation) in dropwizard-validation.
The issue has been fixed in dropwizard-validation 1.3.19 and 2.0.2. We strongly recommend upgrading to one of these versions.
If you are not able to upgrade to one of the aforementioned versions of dropwizard-validation but still want to use the @SelfValidating feature, make sure to properly sanitize any message you're adding to the in the method annotated with .
Running one of these products? Scan your site to see whether it exposes a vulnerable version.
Scan my site freeViolationCollectorExample:
@SelfValidation
public void validateFullName(ViolationCollector col) {
if (fullName.contains("_")) {
// Sanitize fullName variable by escaping relevant characters such as "$"
col.addViolation("Full name contains invalid characters: " + sanitizeJavaEl(fullName));
}
}
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