What is CVE-2021-42556?

CVE-2021-42556 is a medium-severity vulnerability in Rasa X, classified under Path Traversal. CVSS score: 5.5/10. Published 2021-10-22.

How severe is CVE-2021-42556?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Is CVE-2021-42556 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Path Traversal in Rasa X

CVE-2021-42556

Rasa X before 0.42.4 allows Directory Traversal during archive extraction. In the functionality that allows a user to load a trained model archive, an attacker has arbitrary write capability within specific directories via a crafted archive file.

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.010 (58.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N.

Affected products

Rasa Rasa_x
N/a — versions n/a

Weakness classification (CWE)

CWE-22 — Path Traversal

Public proof-of-concept exploits

lierbushiwo/Rasa-cve-exp

References

cve@mitre.org (Product, x_refsource_MISC)
cve@mitre.org (x_refsource_CONFIRM, Third Party Advisory)

Frequently asked questions

What is CVE-2021-42556?: CVE-2021-42556 is a medium-severity vulnerability in Rasa X, classified under Path Traversal. CVSS score: 5.5/10. Published 2021-10-22.
How severe is CVE-2021-42556?: Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2021-42556 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.