CVE-2023-23619 Improper Control of Generation of Code ('Code Injection') in @asyncapi/modelina
Attackers can inject malicious code via input documents in Modelina, potentially executing arbitrary code on systems using default presets.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2023-23619?
CVE-2023-23619 is a critical code injection vulnerability in asyncapi modelina, published on 26 Jan 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Modelina is a library for generating data models based on inputs such as AsyncAPI, OpenAPI, or JSON Schema documents. Versions prior to 1.0.0 are vulnerable to Code injection. This issue affects anyone who is using the default presets and/or does not handle the functionality themself. This issue has been partially mitigated in version 1.0.0, with the maintainer's GitHub Security Advisory (GHSA) noting "It is impossible to fully guard against this, because users have access to the original raw information. However, as of version 1, if you only access the constrained models, you will not encounter this issue. Further similar situations are NOT seen as a security issue, but intended behavior." The suggested workaround from the maintainers is "Fully custom presets that change the entire rendering process which can then escape the user input."
Weakness: CWE-94
Which versions are affected by CVE-2023-23619?
2 open source packages ship an affected version, including @asyncapi/modelina. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
@asyncapi/modelina npm | All versions | 1.0.0 |
@asyncapi/modelina npm | All versions | 1.0.0 |
Products include Lfprojects Modelina.
How do I fix CVE-2023-23619?
Upgrade @asyncapi/modelina to 1.0.0 or later.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2023-23619 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-23619 exists.
Sources
Also known as GHSA-4jg2-84c2-pj95.