KLA10500 Multiple vulnerabilities in u5CMS

Multiple serious vulnerabilities have been found in u5CMS. Malicious users can exploit these vulnerabilities to obtain sensitive information, execute or inject arbitrary code and write local files.

Below is a complete list of vulnerabilities

1. Open redirect vulnerabilities can be exploited remotely via a specially designed cookie;
2. Directore traversal vulnerability can be exploited remotely via a specially designed file parameter;
3. Lack of input restrictions can be exploited remotely via vrctors related to pages copy2.php, localize.php, metai.php, nc.php, new2.php, u5admin/rename2.php, u5admin/editor.php, u5admin/meta2.php, u5admin/rename2.php

Original advisories

Exploitation

Public exploits exist for this vulnerability.

Related products

u5CMS

CVE list

CVE-2015-1575 warning

CVE-2015-1576 critical

CVE-2015-1577 high

CVE-2015-1578 high

Solution

Update to latest version!

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Impacts

• ACE

Arbitrary code execution. Exploitation of vulnerabilities with this impact can lead to executing by abuser any code or commands at vulnerable machine or process.

• OSI

Obtain sensitive information. Exploitation of vulnerabilities with this impact can lead to capturing by abuser information, critical for user or system.

• CI

Code injection. Exploitation of vulnerabilities with this impact can lead to changes in target code.

• SB

Security bypass. Exploitation of vulnerabilities with this impact can lead to performing actions restricted by current security settings.

• WLF

Write Local Files. Exploitation of vulnerabilities with this impact can lead to writing into some inaccessible files. Files that can be read depends on concrete program errors.

Affected Products

• u5CMS versions earlier than 3.9.4