PT-2019-13058 · Fehelper · Fehelper

Hundan2020 · Published 2019-06-26 · Updated 2020-08-24 · CVE-2019-12966

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 FeHelper versions prior to 2019-06-20

Description The issue allows arbitrary code execution during a JSON format operation. This can be demonstrated by the input {"a":(function(){confirm(1)})()}.

Recommendations For FeHelper versions prior to 2019-06-20, update to a version released after 2019-06-19 to resolve the issue. As a temporary workaround, consider restricting JSON format operations to minimize the risk of exploitation.

Exploit

Fix

Special Elements Injection

Weakness Enumeration

CWE-74

Related Identifiers

CVE-2019-12966

Affected Products

Fehelper

References · 3

• 🔥 https://github.com/zxlie/FeHelper/issues/63 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2019-12966 · Security Note
• https://osv.dev/vulnerability/CVE-2019-12966 · Vendor Advisory