Vulnerability identifier: #VU13419

Vulnerability risk: High

CVSSv3.1: 9.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:F/RL:O/RC:C]

CVE-ID: CVE-2018-10594

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: Yes

Vulnerable software:
COMMGR AHSIM_5x1
Client/Desktop applications / Other client software
COMMGR AHSIM_5x0
Client/Desktop applications / Other client software
COMMGR DVPSimulator SS2
Client/Desktop applications / Other client software
COMMGR DVPSimulator SE
Client/Desktop applications / Other client software
COMMGR DVPSimulator ES2
Client/Desktop applications / Other client software
COMMGR DVPSimulator EH3
Client/Desktop applications / Other client software
COMMGR DVPSimulator EH2
Client/Desktop applications / Other client software

Vendor: Delta Electronics, Inc.

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists due to stack-based buffer overflow when the application utilizes a fixed-length stack buffer where an unverified length value can be read from the network packets via a specific network port. A remote unauthenticated attacker can trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

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

Mitigation
Update to version 1.09.

Vulnerable software versions

COMMGR AHSIM_5x1: All versions

COMMGR AHSIM_5x0: All versions

COMMGR DVPSimulator SS2: All versions

COMMGR DVPSimulator SE: All versions

COMMGR DVPSimulator ES2: All versions

COMMGR DVPSimulator EH3: All versions

COMMGR DVPSimulator EH2: All versions

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External links
http://ics-cert.us-cert.gov/advisories/ICSA-18-172-01

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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.