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CVE-2019-19033 — CVE-2019-19033 description and scripts to check the vulnerability in Jalios JCMS 10 (Authentication Bypass) | Kitploit
Tools/GitHubGitHub/ricardojoserf/cve-2019-19033
Authentication & AuthorizationVulnerability AnalysisExploitationWeb Application ExploitationInformation GatheringPenetration TestingMisconfiguration
GitHubricardojoserf/cve-2019-19033

CVE-2019-19033

CVE-2019-19033 description and scripts to check the vulnerability in Jalios JCMS 10 (Authentication Bypass)

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3226 years agoNot yet reviewed

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CVE-2019-19033: Jalios JCMS 10 Backdoor Account / Authentication Bypass

I. VULNERABILITY

Jalios JCMS 10 allows attackers to access any part of the website and the WebDAV server with administrative privileges via a backdoor account using any username and a specific password.

II. CVE REFERENCE

CVE-2019-19033

III. VENDOR

Jalios (https://www.jalios.com/jcms/j_6/en/home)

IV. TIMELINE

08/11/19 - Vulnerability discovered

09/11/19 - Vendor contacted

14/11/19 - Vendor fixes the vulnerability

V. DESCRIPTION

The "webdav" folder uses HTTP authentication which can be bypassed using the backdoor account. This allows to get access to the website as the administrator and then create more administrator users, change passwords of any username, delete usernames, create groups, download the list of all the users (with email addresses, phone numbers, full names ...). It is also possible to upload or overwrite any file in the WebDAV server. The "webdav" folder is located by default in the root of the website. This is caused by a vulnerable version of the "DevTools" plugin, installed by default.

VI. IMPACT

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

VII. SOLUTION

Possible solutions:

  • Disable the DevToolsAuthenticationHandler
  • Disable or uninstall the DevTools plugin.
  • Upgrade DevTools plugin to version 7.1 or 8.1

VIII. REFERENCES

  • CVE page: https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-19033

  • NIST page: https://nvd.nist.gov/vuln/detail/CVE-2019-19033

  • Public disclosure: https://packetstormsecurity.com/files/155419/Jalios-JCMS-10-Backdoor-Account-Authentication-Bypass.html

  • Jalios public issue: https://issues.jalios.com/browse/DTP-58

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