PT-2020-15217 · Dbh · Dbhcms

Published 2020-08-24 · Updated 2020-08-25 · CVE-2020-19891

Positive Technologies (AI Summary)

CVSS v3.1

7.2

High

Base vector

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

Name of the Vulnerable Software and Affected Versions DBHcms version 1.2.0

Description The issue allows a remote authenticated admin user to exploit an Arbitrary file write vulnerability. This is due to the lack of a filter function for security in the mod.editor.php file. Specifically, the $ POST['updatefile'] variable is used as the filename and the $ POST['tinymce content'] variable is used as the file content. This can be exploited to gain a webshell.

Recommendations For DBHcms version 1.2.0, as a temporary workaround, consider restricting access to the mod.editor.php file until a patch is available. Additionally, restrict the use of the $ POST['updatefile'] and $ POST['tinymce content'] variables to minimize the risk of exploitation. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

Memory Corruption

Weakness Enumeration

CWE-787

Related Identifiers

CVE-2020-19891

Affected Products

Dbhcms

References · 3

• 🔥 https://github.com/fragrant10/cve/tree/master/dbhcms1.2.0#14 · Exploit
• https://osv.dev/vulnerability/CVE-2020-19891 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-19891 · Security Note