PT-2017-17970 · Bigtree · Bigtree Cms

Cdxy · Published 2017-04-15 · Updated 2017-04-21 · CVE-2017-7881

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

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

Name of the Vulnerable Software and Affected Versions BigTree CMS versions prior to 4.2.18

Description The issue allows remote attackers to bypass CSRF protection by manipulating the HTTP Referer header. This is due to the reliance on a substring check for CSRF protection, which can be exploited by placing the required admin/developer/ URI within a query string in the Referer header. The vulnerability was found in the core/admin/modules/developer/ header.php file and was patched in the core/inc/bigtree/admin.php file.

Recommendations For BigTree CMS versions prior to 4.2.18, update to version 4.2.18 or later to resolve the issue. As a temporary workaround, consider restricting access to the admin/developer/ URI to minimize the risk of exploitation.

Exploit

Fix

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2017-7881

Affected Products

Bigtree Cms

References · 5

• 🔥 https://cdxy.me/?p=765 · Exploit
• https://github.com/bigtreecms/BigTree-CMS/commit/7761481ac40d83ac29fef42bc6b3c07c86694b56 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2017-7881 · Security Note
• https://osv.dev/vulnerability/CVE-2017-7881 · Vendor Advisory
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2017-7881 · Note