CVE-2023-54345

Description

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.

CVSS Vector

Affected Products

References

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