Multiple vulnerabilities in Trend Micro Home Network Security
| Risk | High |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2021-32458 CVE-2021-32457 CVE-2021-32459 |
| CWE-ID | CWE-121 CWE-264 CWE-259 |
| Exploitation vector | Network |
| Public exploit |
Public exploit code for vulnerability #1 is available. Public exploit code for vulnerability #2 is available. Public exploit code for vulnerability #3 is available. |
| Vulnerable software Subscribe |
Home Network Security Hardware solutions / Routers for home users |
| Vendor | Trend Micro |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Stack-based buffer overflow
EUVDB-ID: #VU53514
Risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-32458
CWE-ID:
CWE-121 - Stack-based buffer overflow
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error in the tdts.ko chrdev_ioctl_handle. A local user can perform a specially crafted IOCTL call to trigger stack-based buffer overflow and execute arbitrary code on the system with elevated privileges.
Install updates from vendor's website.
Vulnerable software versionsHome Network Security: 6.1.567 - 6.6.604
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1231
http://helpcenter.trendmicro.com/en-us/article/TMKA-10337
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
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.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
2) Permissions, Privileges, and Access Controls
EUVDB-ID: #VU53513
Risk: Low
CVSSv3.1: 7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-32457
CWE-ID:
CWE-264 - Permissions, Privileges, and Access Controls
Exploit availability: No
DescriptionThe vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to improperly imposed permissions in the tdts.ko chrdev_ioctl_handle functionality. A local user can make a specially crafted IOCTL request and gain elevated privileges on the system.
Install updates from vendor's website.
Vulnerable software versionsHome Network Security: 6.1.567 - 6.6.604
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1230
http://helpcenter.trendmicro.com/en-us/article/TMKA-10337
Q & A
Can this vulnerability be exploited remotely?
No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.
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.
The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.
3) Use of Hard-coded Password
EUVDB-ID: #VU53512
Risk: High
CVSSv3.1: 8.2 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:P/RL:O/RC:C]
CVE-ID: CVE-2021-32459
CWE-ID:
CWE-259 - Use of Hard-coded Password
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the affected device.
The vulnerability exists due to presence of hard-coded credentials diamond:bahV6AtJqZt4K in the SFTP Log Collection Server feature and are present in the core binary of the HNS device. A remote non-authenticated attacker can login to the affected system and gain access to the sever.
Install updates from vendor's website.
Vulnerable software versionsHome Network Security: 6.1.567 - 6.6.604
External linkshttp://www.talosintelligence.com/vulnerability_reports/TALOS-2021-1241
http://helpcenter.trendmicro.com/en-us/article/TMKA-10337
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. However, proof of concept for this vulnerability is available.
