Asterisk 重大漏洞

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  1. 1. Issue #1

Issue #1

影響的系統:VtigerCRM 5.1 (包含 Elastix 2.2/2.0)

漏洞的起因:PHP 檔設計漏洞

漏洞的危害:
攻擊者只要瀏覽以下特定網址,就能讀取所有系統檔案的內容。

https://your.elastix.server/vtigercrm/modules/com_vtiger_workflow/sortfieldsjson.php?module_name=../../../../../../../../etc/amportal.conf%00

相關連結:

解決方案:
Option 1: 升級 Elastix 至 2.3.x

yum update elastix-vtigercrm
reboot
yum update elastix 

Option 2: 使用 Apache 模組 mod_security

安裝 mod_security

yum install mod_security

編輯 /etc/httpd/conf.d/mod_security.conf
加上這一行

# Fix the security issue of VtigerCRM
SecRule REQUEST_URI "@rx \/vtigercrm\/(?:[^/]+\/)*|amportal|dahdi_channels|chan_dahdi\.conf$" "severity:alert,id:'0000015',deny,log,status:400,msg:'Unacceptable folder.',severity:'2'"
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