PT-2020-20141 · Jyaml · Jyaml

Ashish Kukreti + 1 · Published 2020-02-19 · Updated 2022-05-24 · CVE-2020-8441

Positive Technologies (AI Summary)

CVSS v3.1

9.8

Critical

Base vector

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

Name of the Vulnerable Software and Affected Versions JYaml versions prior to 1.4

Description The issue allows remote code execution during deserialization of a malicious payload through the load() function. It is noted that JYaml is a discontinued product.

Recommendations For JYaml versions prior to 1.4, as the product is discontinued, there is no information about a newer version that contains a fix for this issue. Consider disabling the load() function to minimize the risk of exploitation.

Exploit

Fix

Deserialization of Untrusted Data

Weakness Enumeration

CWE-502

Related Identifiers

CVE-2020-8441

GHSA-4QHR-Q7WF-94XP

Affected Products

Jyaml

References · 9

• 🔥 https://gist.github.com/j0lt-github/f5141abcacae63d434ecae211422153a · Exploit
• https://osv.dev/vulnerability/GHSA-4qhr-q7wf-94xp · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-8441 · Security Note
• https://osv.dev/vulnerability/CVE-2020-8441 · Vendor Advisory
• https://github.com/mbechler/marshalsec · Note
• https://github.com/mbechler/marshalsec/blob/master/marshalsec.pdf · Note
• https://security.netapp.com/advisory/ntap-20200313-0001 · Note
• https://sourceforge.net/p/jyaml/bugs · Note
• https://t.me/cvenotify/1087 · Telegram Post