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.

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CVSS v3.1 Score

8.8

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploit Prediction

0.0010

Probability of exploitation

0.26%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-94 CWE-94

Affected Products

Vendor	Product	Versions
frappe	erpnext	All

References

Exploits

https://gist.github.com/lebr0nli/c2fc617390451f0e5a4c31c87d8720b6 https://www.exploit-db.com/exploits/51580

Other References

http://erpnext.org https://frappeframework.com/docs/v13/user/en/desk/scripting/server-script 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.vulncheck.com/advisories/frappe-framework-erpnext-remote-code-execution

Frequently Asked Questions

What is CVE-2023-54345? +

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. It has a CVSS v3.1 base score of 8.8 (HIGH).

How severe is CVE-2023-54345? +

CVE-2023-54345 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0010, placing it in the 0th percentile for exploitation probability.

What products are affected by CVE-2023-54345? +

CVE-2023-54345 affects products from frappe, specifically: erpnext. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-54345? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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