Denial of service in MGate 5109 and MGate 5101-PBM-MN Series Protocol Gateways

1) Memory leak

EUVDB-ID: #VU59346

Risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak. A remote attacker can force the application to leak memory and perform denial of service attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

MGate 5109 Series Protocol Gateway: 2.2

MGate 5101-PBM-MN Series Protocol Gateway: 2.1

External links

http://www.moxa.com/en/support/product-support/security-advisory/mgate-5109-5101-protocol-gateways-vulnerability

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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