CVE-2023-51388

Apache Hertzbeat vulnerability

9.8 CRITICALEPSS 1.30%

Published22 Feb 2024

Description

Hertzbeat is a real-time monitoring system. In `CalculateAlarm.java`, `AviatorEvaluator` is used to directly execute the expression function, and no security policy is configured, resulting in AviatorScript (which can execute any static method by default) script injection. Version 1.4.1 fixes this vulnerability.

CVSS 3.1 breakdown

Attack vectorNetwork

Attack complexityLow

Privileges requiredNone

User interactionNone

ScopeUnchanged

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Apache Hertzbeat< 1.4.1

Remediation

Fixed in

Apache Hertzbeat≥ 1.4.1

Frequently asked

Is CVE-2023-51388 being actively exploited?

CVE-2023-51388 is not in the CISA KEV catalog. Its EPSS exploit probability is 1.30%.

How severe is CVE-2023-51388?

CVE-2023-51388 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.30% probability of exploitation.

Which products are affected by CVE-2023-51388?

Affected products include Apache Hertzbeat.

How do I fix CVE-2023-51388?

Upgrade affected software to a fixed version, for example Apache Hertzbeat 1.4.1 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2023-51388 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation works Book a demo

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.