CVE-2018-1273: VMware Tanzu Spring Data Commons Property Binder Vulnerability

CVE-2018-1273 is a property binder vulnerability in VMware Tanzu Spring Data Commons that can allow an attacker to achieve remote code execution. CISA notes that this weakness has been used by ransomware operators, so organizations running Spring Data Commons should treat it as a priority for inventory and remediation.

Because the flaw sits in a widely used data-access component, any application that binds request or external data into domain objects may be exposed. Confirm exact affected releases and fixed builds against the vendor advisory before declaring systems clear.

How it works

The underlying weakness is CWE-94 (code injection). In Spring Data Commons, the property-binding machinery that maps incoming data onto object properties did not sufficiently restrict what could be bound. An attacker who can supply crafted property paths or values can cause the binder to evaluate expressions or instantiate classes in ways the application developer never intended, ultimately leading to remote code execution on the host process.

Abuse typically requires the ability to send data that reaches the vulnerable binder—commonly through HTTP parameters, form fields, or other deserializable input that the application passes to Spring Data repositories or related binding APIs. No further exploit mechanics are detailed here; defenders should treat any untrusted input that reaches property binding as a potential attack surface and verify behavior against the vendor’s description.

Am I affected? How to find it in your systems

Spring Data Commons is commonly pulled in as a transitive dependency of Spring Data JPA, Spring Data REST, Spring Boot data starters, and related VMware Tanzu / Spring projects. It appears in both standalone Spring applications and containerized microservices.

• Inventory build files (Maven pom.xml, Gradle build scripts), dependency-lock files, and container image software bills of materials for any artifact named spring-data-commons or packages that depend on it.
• Query artifact repositories, CI/CD dependency graphs, and runtime classpaths for the library; note the exact version in use.
• Compare those versions with the fixed releases listed in the vendor advisory—do not rely on version ranges recalled from memory.
• Review application configuration for endpoints that perform data binding (for example, Spring Data REST exporters, custom controllers that accept domain objects, or binder customizations).
• Telemetry signs of exploitation are generic for code-injection/RCE: unexpected child processes, outbound connections from the application JVM, unusual class-loading or reflection activity, and errors or access logs showing anomalous property-path strings. Correlate with WAF or reverse-proxy logs for suspicious parameter names.

How to remediate

Patch first. Apply the updates published by the vendor for VMware Tanzu Spring Data Commons exactly as instructed in the official advisory. CISA’s required action is to apply updates per vendor instructions; once the fixed library is on the classpath, rebuild and redeploy every affected application.

• After upgrading, re-run dependency checks to confirm no older transitive copies remain.
• For this class of flaw, also harden binding behavior: restrict which properties may be bound, avoid binding directly from untrusted request data onto rich domain objects, and prefer explicit DTOs with allow-lists.
• Ensure the application runs with a least-privilege OS and JVM account so that any future code-execution bug has limited impact.
• Rotate any secrets or credentials that the application process could have accessed, as a precaution after patching.

If you can't patch immediately

Implement compensating controls while you schedule the upgrade:

• Network segmentation: isolate hosts or containers running the vulnerable component so they cannot reach sensitive internal systems or the internet except through controlled proxies.
• Virtual patching / WAF: deploy rules that block or alert on request patterns known to target property-binder injection (unusual nested property paths, SpEL-like expressions, or unexpected class references). Tune rules against your traffic to limit false positives.
• Disable or tightly constrain the affected feature: if Spring Data REST or automatic binding endpoints are not required, turn them off or place them behind strong authentication and input validation.
• Heightened monitoring: enable detailed application and JVM audit logging, watch for process creation and anomalous outbound traffic, and forward logs to a SIEM with alerts for RCE indicators.
• Reduce the attack surface by removing unused dependencies and ensuring only necessary ports are exposed.

These measures lower risk but do not replace the vendor patch; schedule the update as soon as practicable.

If your data may have been exposed

Actively exploited vulnerabilities, including those with known ransomware use, frequently lead to broader compromise and data theft. If you have evidence of exploitation or cannot rule it out, follow your incident-response plan: isolate affected systems, preserve volatile evidence, and assess what the application process could access. As one additional check, you can run a free exposure scan of your email addresses against known breach data sets to see whether credentials or personal information have already appeared in public dumps.