CVE-2023-54345

Summary

Frappe Framework ERPNext 13.4.0 contains a sandbox escape vulnerability in RestrictedPython that allows authenticated users with System Manager role to execute arbitrary code by exploiting frame introspection. Attackers can create a server script via the /app/server-script endpoint and access the gi_frame attribute to traverse the call stack and invoke os.popen to execute system commands.

Affected Software

Weaknesses

• CWE-94: Improper Control of Generation of Code ('Code Injection')

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: total

References

• https://www.exploit-db.com/exploits/51580
• http://erpnext.org
• https://github.com/frappe/frappe/
• https://ur4ndom.dev/posts/2023-07-02-uiuctf-rattler-read/
• https://gist.github.com/lebr0nli/c2fc617390451f0e5a4c31c87d8720b6
• https://frappeframework.com/docs/v13/user/en/desk/scripting/server-script
• https://github.com/frappe/frappe/blob/v13.4.0/frappe/utils/safe_exec.py#L42
• https://www.vulncheck.com/advisories/frappe-framework-erpnext-remote-code-execution

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