Multiple vulnerabilities in Micro Research MR-GM series



Published: 2023-10-11
Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-35392
CVE-2021-35393
CVE-2023-45194
CWE-ID CWE-121
CWE-122
CWE-276
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe
MR-GM3-W
Hardware solutions / Routers & switches, VoIP, GSM, etc

MR-GM3-M
Hardware solutions / Routers & switches, VoIP, GSM, etc

MR-GM3-DKS
Hardware solutions / Routers & switches, VoIP, GSM, etc

MR-GM3-DK
Hardware solutions / Routers & switches, VoIP, GSM, etc

MR-GM3-S
Hardware solutions / Routers & switches, VoIP, GSM, etc

MR-GM3-K
Hardware solutions / Routers & switches, VoIP, GSM, etc

MR-GM3-D
Hardware solutions / Routers & switches, VoIP, GSM, etc

MR-GM2
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor Micro Research

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Stack-based buffer overflow

EUVDB-ID: #VU55911

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-35392

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 unsafe crafting of SSDP NOTIFY messages from received M-SEARCH messages ST header. A remote unauthenticated 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 update from vendor's website.

Vulnerable software versions

MR-GM3-W: 1.03.45

MR-GM3-M: 1.03.45

MR-GM3-DKS: 1.03.45

MR-GM3-DK: 1.03.45

MR-GM3-S: 1.03.45

MR-GM3-K: 1.03.45

MR-GM3-D: 1.03.45

MR-GM2: 3.00.03

External links

http://jvn.jp/en/vu/JVNVU99039725/index.html
http://www.mrl.co.jp/20231005_security/


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.

2) Heap-based buffer overflow

EUVDB-ID: #VU55912

Risk: High

CVSSv3.1: 7.1 [CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-35393

CWE-ID: CWE-122 - Heap-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 unsafe parsing of the UPnP SUBSCRIBE/UNSUBSCRIBE Callback header. A remote attacker can pass specially crafted data to the application, trigger heap-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 update from vendor's website.

Vulnerable software versions

MR-GM3-W: 1.03.45

MR-GM3-M: 1.03.45

MR-GM3-DKS: 1.03.45

MR-GM3-DK: 1.03.45

MR-GM3-S: 1.03.45

MR-GM3-K: 1.03.45

MR-GM3-D: 1.03.45

MR-GM2: 3.00.03

External links

http://jvn.jp/en/vu/JVNVU99039725/index.html
http://www.mrl.co.jp/20231005_security/


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.

3) Incorrect default permissions

EUVDB-ID: #VU81864

Risk: Medium

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

CVE-ID: CVE-2023-45194

CWE-ID: CWE-276 - Incorrect Default Permissions

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to use of default credentials. A remote attacker on the local network can intercept the communication when the affected product performs the communication without changing the pre-shared key from the factory-default configuration.

Mitigation

Install update from vendor's website.

Vulnerable software versions

MR-GM3-W: 1.03.45

MR-GM3-M: 1.03.45

MR-GM3-DKS: 1.03.45

MR-GM3-DK: 1.03.45

MR-GM3-S: 1.03.45

MR-GM3-K: 1.03.45

MR-GM3-D: 1.03.45

MR-GM2: 3.00.03

External links

http://jvn.jp/en/vu/JVNVU99039725/index.html
http://www.mrl.co.jp/20231005_security/


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the local network (LAN).

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.



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