Input validation error in SeaCMS

1) Input validation error

EUVDB-ID: #VU37762

Risk: Medium

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-17561

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote privileged user to execute arbitrary code.

SeaCMS 6.56 allows remote authenticated administrators to execute arbitrary PHP code via a crafted token field to admin/admin_ping.php, which interacts with data/admin/ping.php.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SeaCMS: 6.56

External links

http://www.jianshu.com/p/35af80b97ee6
http://gist.github.com/WangYihang/9507e2efdceb67a5bc2761200f19f213

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated privileged user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.