Vulnerability identifier: #VU21258

Vulnerability risk: Medium

CVSSv3.1: 4.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-16677

CWE-ID: CWE-352

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
iCMS
Web applications / CMS

Vendor: iCMS

Description

The vulnerability allows a remote attacker to perform cross-site request forgery attacks.

The vulnerability exists due to insufficient validation of the HTTP request origin in admincp.php?app=members&do=del, when empty CSRF token is passed. A remote attacker can trick the victim to visit a specially crafted web page and perform arbitrary actions on behalf of the victim on the vulnerable website, such as delete all application users.

Example:

http://[host]/admincp.php?app=members&do=del&id=1&frame=iPHP&CSRF_TOKEN=

Mitigation
Install update from vendor's website.

Vulnerable software versions

iCMS: 7.0.0 - 7.0.15

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External links
http://github.com/idreamsoft/iCMS/issues/76
http://github.com/idreamsoft/iCMS/commit/c7cab1ed4533187c6164807b3ed3228572d5609f

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.