# CVE-2017-3199: GraniteDS, version 3.1.1.GA, Action Message Format (AMF3) Java implementation is vulnerable to insecure deserialization

> Remote attackers can execute arbitrary code by sending malicious serialized Java objects to the GraniteDS AMF3 deserializer.

- **Severity:** High 8.1 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 11 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** GHSA-8m35-r25c-qr56

## What is CVE-2017-3199?

CVE-2017-3199 is a high-severity unsafe deserialization vulnerability in GraniteDS Framework, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The Java implementation of GraniteDS, version 3.1.1.GA, AMF3 deserializers derives class instances from java.io.Externalizable rather than the AMF3 specification's recommendation of flash.utils.IExternalizable. A remote attacker with the ability to spoof or control an RMI server connection may be able to send serialized Java objects that execute arbitrary code when deserialized.

Weakness: CWE-502 (Deserialization of Untrusted Data)

## Which versions are affected by CVE-2017-3199?

2 open source packages ship an affected version, including org.graniteds:granite-core. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.graniteds:granite-core` | Maven | All versions to 3.1.1.GA | None |
| `org.graniteds:granite-core` | Maven | All versions to 3.1.1.GA | None |

Products: Graniteds Graniteds.

## How do I fix CVE-2017-3199?

No fix has been published for CVE-2017-3199 yet. Limit exposure of the affected software until one is available.

## Is CVE-2017-3199 being exploited?

There is no known exploitation of CVE-2017-3199 in the wild and no public exploit code.

## Other vulnerabilities in GraniteDS Framework

- [CVE-2017-3200](https://insights.sbomify.com/CVE-2017-3200/): GraniteDS Insecure Deserialization (high 8.1)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2017-3199 and fix it if it is affected.

What it is: CVE-2017-3199 is a high-severity unsafe deserialization vulnerability in GraniteDS Framework, published on 11 Jun 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2017-3199 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.graniteds:granite-core (Maven): affected all versions up to 3.1.1.GA; no fix listed
- org.graniteds:granite-core (Maven): affected all versions up to 3.1.1.GA; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2017-3199/ (Markdown: https://insights.sbomify.com/CVE-2017-3199/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2017-3199
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2017-3199
- OSV: https://osv.dev/vulnerability/CVE-2017-3199

---
From sbomify Insights: https://insights.sbomify.com/CVE-2017-3199/
Summaries are generated and may contain mistakes; the official description above is the record.