SSRF attack in Trend Micro OfficeScan

1) Server-side request forgery

EUVDB-ID: #VU9345

Risk: Medium

CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform SSRF attack.

The vulnerability exists due to improper input validation of data passed via the "url" HTTP GET parameter to "/officescan/console/html/Widget/help_proxy.php" script. A remote attacker can create a specially crafted link, trick the victim into opening it and perform SSRF attack.

Successful exploitation of the vulnerability may allow an attacker to perform arbitrary HTTP requests to external and internal servers.

Exploitation example:

https://[host]:4343/officescan/console/html/Widget/help_proxy.php?url=http://<REQUESTED-IP>:8080

Mitigation

Install update form vendor's website:
OfficeScan XG update

Vulnerable software versions

OfficeScan: 11.0 - XG

External links

http://hyp3rlinx.altervista.org/advisories/TRENDMICRO-OFFICESCAN-XG-SERVER-SIDE-REQUEST-FORGERY.txt
http://seclists.org/bugtraq/2017/Oct/9

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.