CVE-2019-3396

critical

Description

The Widget Connector macro in Atlassian Confluence Server before version 6.6.12 (the fixed version for 6.6.x), from version 6.7.0 before 6.12.3 (the fixed version for 6.12.x), from version 6.13.0 before 6.13.3 (the fixed version for 6.13.x), and from version 6.14.0 before 6.14.2 (the fixed version for 6.14.x), allows remote attackers to achieve path traversal and remote code execution on a Confluence Server or Data Center instance via server-side template injection.

From the Tenable Blog

CVE-2019-3396: Vulnerability in Atlassian Confluence Widget Connector Exploited in the Wild

CVE-2019-3396: Vulnerability in Atlassian Confluence Widget Connector Exploited in the Wild

Published: 2019-04-30

Attackers are targeting vulnerable Confluence instances after company published a fix for the vulnerability back in March 2019. Background On March 20, Atlassian published a Confluence Security Advisory to announce fixes for two vulnerabilities, CVE-2019-3395 and CVE-2019-3396.

References

https://www.greynoise.io/blog/spike-in-atlassian-exploitation-attempts-patching-is-crucial

https://www.tenable.com/cyber-exposure/a-look-inside-the-ransomware-ecosystem

https://www.cisa.gov/news-events/cybersecurity-advisories/aa21-209a

https://media.defense.gov/2020/Oct/20/2002519884/-1/-1/0/CSA_CHINESE_EXPLOIT_VULNERABILITIES_UOO179811.PDF

https://www.alertlogic.com/blog/active-exploitation-of-confluence-vulnerability-cve-2019-3396-dropping-gandcrab-ransomware/

https://www.exploit-db.com/exploits/46731/

https://www.tenable.com/blog/government-agencies-warn-of-state-sponsored-actors-exploiting-publicly-known-vulnerabilities

https://www.tenable.com/blog/cve-2019-3396-vulnerability-in-atlassian-confluence-widget-connector-exploited-in-the-wild

https://www.tenable.com/blog/objects-in-mirror-are-closer-than-they-appear-reflecting-on-the-cybersecurity-threats-from-2019

https://jira.atlassian.com/browse/CONFSERVER-57974

http://packetstormsecurity.com/files/161065/Atlassian-Confluence-6.12.1-Template-Injection.html

http://packetstormsecurity.com/files/152568/Atlassian-Confluence-Widget-Connector-Macro-Velocity-Template-Injection.html

Details

Source: Mitre, NVD

Published: 2019-03-25

Updated: 2025-02-10

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.94486