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CVE-2021-29487— Authentication bypass in Octobercms

Quick assessment

Affected
octobercms october
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

October CMS是一套基于PHP和Laravel Web应用程序框架的开源内容管理系统（CMS）。 October CMS 存在安全漏洞，攻击者可利用该漏洞通过精心编制的请求绕过服务器上的身份验证和用户帐户接管。攻击者必须获得用于cookie加密和签名的Laravel密钥才能利用此漏洞进行攻击。该问题已在Build 472和v1.1.5中修复

CVSS 7.4 · High EPSS 0.90% · P58

Possible ATT&CK Techniques 1 AI

T1078 · Valid Accounts
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I. Basic Information for CVE-2021-29487

Vulnerability Information
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Vulnerability Title
Authentication bypass in Octobercms
Source: CVE Program / CVE List V5
Vulnerability Description
octobercms in a CMS platform based on the Laravel PHP Framework. In affected versions of the october/system package an attacker can exploit this vulnerability to bypass authentication and takeover of and user account on an October CMS server. The vulnerability is exploitable by unauthenticated users via a specially crafted request. This only affects frontend users and the attacker must obtain a Laravel secret key for cookie encryption and signing in order to exploit this vulnerability. The issue has been patched in Build 472 and v1.1.5.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
October CMS 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
October CMS是一套基于PHP和Laravel Web应用程序框架的开源内容管理系统（CMS）。 October CMS 存在安全漏洞，攻击者可利用该漏洞通过精心编制的请求绕过服务器上的身份验证和用户帐户接管。攻击者必须获得用于cookie加密和签名的Laravel密钥才能利用此漏洞进行攻击。该问题已在Build 472和v1.1.5中修复
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
octobercms october >= 1.0.471, < 1.0.472 -

II. Public POCs for CVE-2021-29487

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III. Intelligence Information for CVE-2021-29487

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Patches & Fixes for CVE-2021-29487 (2)

Vendor Advisories for CVE-2021-29487 (1)

IV. Related Vulnerabilities

Same product: october
Same vendor: octobercms
Same weakness: CWE-287

V. Comments for CVE-2021-29487

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