PT-2022-12317 · Unknown · Backdrop Cms

V1N1V131R4 · Published 2022-02-03 · Updated 2024-08-04 · CVE-2021-45268

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 Backdrop CMS version 1.20

Description A Cross Site Request Forgery (CSRF) issue exists, allowing remote attackers to gain Remote Code Execution (RCE) on the hosting web server via uploading a malicious add-on with a crafted PHP file. The attack requires a session cookie of a high-privileged authenticated user who is entitled to install arbitrary add-ons.

Recommendations For Backdrop CMS version 1.20, as a temporary workaround, consider restricting access to the add-on installation feature to minimize the risk of exploitation. Avoid using the add-on installation feature until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

RCE

CSRF

Weakness Enumeration

CWE-352

Related Identifiers

CVE-2021-45268

Affected Products

Backdrop Cms

References · 7

• 🔥 https://github.com/V1n1v131r4/CSRF-to-RCE-on-Backdrop-CMS · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2021-45268 · Security Note
• https://osv.dev/vulnerability/CVE-2021-45268 · Vendor Advisory
• https://t.me/cvenotify/26256 · Telegram Post
• https://exploit-db.com/exploits/50323 · Note
• https://t.me/cibsecurity/36800 · Telegram Post
• https://t.me/cvenotify/88930 · Telegram Post