Security restrictions bypass in Trend Micro Threat Discovery Appliance

1) Security restrictions bypass

EUVDB-ID: #VU7991

Risk: Medium

CVSSv3.1: 8 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2016-7552

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

Exploit availability: Yes

Description

The vulnerability allows a remote attacker to conduct a directory traversal attack on the target system.

The weakness exists in the logoff.cgi script due to improper processing of a session_id cookie. A remote attacker can send specially crafted data, delete arbitrary files in the logoff.cgi script, reset the administrator password to 'admin' if the system is rebooted and bypass authentication restrictions or cause DoS condition.

Successful exploitation of the vulnerability may result in system crash.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Threat Discovery Appliance: 2.6.1062r1

External links

http://dl.packetstormsecurity.net/1704-exploits/tmtda261062rllo-traversal.txt

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, a fully functional exploit for this vulnerability is available.