Stack-based buffer overflow in Moxa’s EDR-810 Series Secure Routers

1) Stack-based buffer overflow

EUVDB-ID: #VU21473

Risk: High

CVSSv4.0: 6.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: N/A

CWE-ID: CWE-121 - Stack-based buffer overflow

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within multiple functions in the web server. A remote authenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Moxa EDR-810: 3.11 - 5.1

CPE2.3

• cpe:2.3:a:moxa:moxa_edr-810:3.11:*:*:*:*:*:*:*
• cpe:2.3:a:moxa:moxa_edr-810:3.12:*:*:*:*:*:*:*
• cpe:2.3:a:moxa:moxa_edr-810:4.0:*:*:*:*:*:*:*

External links

https://www.moxa.com/en/support/support/security-advisory/edr-810-series-secure-routers-vulnerability

Q & A

Can this vulnerability be exploited remotely?

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

How the attacker can exploit this vulnerability?

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

Is there known malware, which exploits this vulnerability?

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