Multiple vulnerabilities in BUFFALO VR-S1000 router
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 4 |
| CVE-ID | CVE-2023-45741 CVE-2023-46681 CVE-2023-46711 CVE-2023-51363 |
| CWE-ID | CWE-78 CWE-88 CWE-321 CWE-200 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
VR-S1000 Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | BUFFALO INC. |
Security Bulletin
This security bulletin contains information about 4 vulnerabilities.
1) OS Command Injection
EUVDB-ID: #VU84807
Risk: Low
CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-45741
CWE-ID:
CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the web management interface. A remote authenticated user can send specially crafted data to the application and execute arbitrary OS commands on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsVR-S1000: before 2.42
CPE2.3 External linkshttps://www.buffalo.jp/news/detail/20231225-01.html
https://jvn.jp/en/jp/JVN23771490/
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated privileged user 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) Improper Neutralization of Argument Delimiters in a Command
EUVDB-ID: #VU84808
Risk: Medium
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:Green]
CVE-ID: CVE-2023-46681
CWE-ID:
CWE-88 - Argument Injection or Modification
Exploit availability: No
DescriptionThe vulnerability allows a remote user to execute arbitrary shell commands on the target system.
The vulnerability exists due to improper input validation in the web management interface. A remote authenticated user can send specially crafted data to the application and execute arbitrary OS commands on the target system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsVR-S1000: before 2.42
CPE2.3 External linkshttps://www.buffalo.jp/news/detail/20231225-01.html
https://jvn.jp/en/jp/JVN23771490/
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 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) Use of Hard-coded Cryptographic Key
EUVDB-ID: #VU84809
Risk: Low
CVSSv4.0: 0.4 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-46711
CWE-ID:
CWE-321 - Use of Hard-coded Cryptographic Key
Exploit availability: No
DescriptionThe vulnerability allows an attacker to compromise the affected device.
The vulnerability exists due to presence of a hard-coded cryptographic key on the device. An attacker with physical access to device can recover passwords of other users.
Install updates from vendor's website.
Vulnerable software versionsVR-S1000: before 2.42
CPE2.3 External linkshttps://www.buffalo.jp/news/detail/20231225-01.html
https://jvn.jp/en/jp/JVN23771490/
Q & A
Can this vulnerability be exploited remotely?
No. The attacker should have physical access to the system in order to successfully exploit this vulnerability.
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.
4) Information disclosure
EUVDB-ID: #VU84810
Risk: Low
CVSSv4.0: 1.3 [CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]
CVE-ID: CVE-2023-51363
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application's web interface. A remote attacker on the local network can gain unauthorized access to sensitive information on the system.
MitigationInstall updates from vendor's website.
Vulnerable software versionsVR-S1000: before 2.42
CPE2.3 External linkshttps://www.buffalo.jp/news/detail/20231225-01.html
https://jvn.jp/en/jp/JVN23771490/
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.
