Open Solutions for Education openSIS 安全漏洞

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漏洞ID 2073953 漏洞类型 其他
发布时间 2020-07-01 更新时间 2020-08-12
CVE编号 CVE-2020-13382 CNNVD-ID CNNVD-202006-1877
漏洞平台 N/A CVSS评分 N/A
|漏洞来源
https://cxsecurity.com/issue/WLB-2020070004
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-202006-1877
|漏洞详情
Open Solutions for Education openSIS是美国Open Solutions for Education公司的一套开源的学生信息管理系统。 Open Solutions for Education openSIS 7.4及之前版本中存在安全漏洞,该漏洞源于不正确的访问控制。攻击者可利用该漏洞访问任意的应用程序功能。
|漏洞EXP
-------------------------------------------------------
openSIS <= 7.4 Incorrect Access Control Vulnerabilities
-------------------------------------------------------


[-] Software Link:

https://opensis.com/


[-] Affected Versions:

Version 7.4 and prior versions.


[-] Vulnerabilities Description:

The application prevents unauthenticated access to its functionalities 
by including
the 'RedirectIncludes.php', 'RedirectModules.php', and 
'RedirectRootInc.php' scripts,
which implement the access control logic by using the following code:

if(!$_SESSION['STAFF_ID'] && !$_SESSION['STUDENT_ID'] && 
strpos($_SERVER['PHP_SELF'],'index.php')===false)
{
     header('Location: ../../../index.php');
     exit;
}

This can be easily bypassed by appending /index.php at the end of the 
URL, and can
be exploited by unauthenticated attackers to potentially access any 
application
functionality which should require the user to be authenticated.


[-] Solution:

No official solution is currently available.


[-] Disclosure Timeline:

[04/11/2019] - Vendor notified
[04/11/2019] - Vendor acknowledgement
[10/01/2020] - Vendor contacted again asking for updates
[15/01/2020] - Vendor replied they would need a few examples
[20/01/2020] - Told the vendor they could use the PoC I sent them in 
November
[05/02/2020] - Vendor asked for a video recording to demonstrate the 
vulnerabilities
[06/02/2020] - Proof of Concept video sent to the vendor
[03/03/2020] - Vendor contacted again asking for updates
[04/03/2020] - Vendor replied "we just have to wait a little longer"
[25/04/2020] - Version 7.4 released, vulnerabilities still not fixed
[22/05/2020] - CVE number assigned
[30/06/2020] - Public disclosure


[-] CVE Reference:

The Common Vulnerabilities and Exposures project (cve.mitre.org)
has assigned the name CVE-2020-13382 to these vulnerabilities.


[-] Credits:

Vulnerabilities discovered by Egidio Romano.


[-] Original Advisory:

http://karmainsecurity.com/KIS-2020-06


|参考资料

来源:packetstormsecurity.com

链接:https://packetstormsecurity.com/files/158255/openSIS-7.4-Incorrect-Access-Control.html