CVE-2021-41127 Maliciously Crafted Model Archive Can Lead To Arbitrary File Write in rasa

2021-10-2120:15:11

CWE-23

CWE-22

GitHub_M

www.cve.org

7.3 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.001 Low

EPSS

Percentile

23.9%

JSON

Rasa is an open source machine learning framework to automate text-and voice-based conversations. In affected versions a vulnerability exists in the functionality that loads a trained model tar.gz file which allows a malicious actor to craft a model.tar.gz file which can overwrite or replace bot files in the bot directory. The vulnerability is fixed in Rasa 2.8.10. For users unable to update ensure that users do not upload untrusted model files, and restrict CLI or API endpoint access where a malicious actor could target a deployed Rasa instance.

CNA Affected

[
  {
    "product": "rasa",
    "vendor": "RasaHQ",
    "versions": [
      {
        "status": "affected",
        "version": "< 2.8.10"
      }
    ]
  }
]