Improper Authentication in Fujitsu Si-R series and SR-M series network devices



Risk Low
Patch available NO
Number of vulnerabilities 1
CVE-ID CVE-2023-38555
CWE-ID CWE-287
Exploitation vector Local network
Public exploit N/A
Vulnerable software
Si-R 30B
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R 130B
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R 90brin
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R570B
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R370B
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R220D
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G100
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G200
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G100B
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G110B
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G200B
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G210
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G211
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G120
Hardware solutions / Routers & switches, VoIP, GSM, etc

Si-R G121
Hardware solutions / Routers & switches, VoIP, GSM, etc

SR-M 50AP1
Hardware solutions / Routers & switches, VoIP, GSM, etc

Vendor Fujitsu

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Improper Authentication

EUVDB-ID: #VU78676

Risk: Low

CVSSv4.0: 2.4 [CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-38555

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in when processing authentication requests in the web management interface. A remote attacker on the local network can obtain the product's configuration information or change/reset the configuration settings.

Mitigation

Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

Si-R 30B: All versions

Si-R 130B: All versions

Si-R 90brin: All versions

Si-R570B: All versions

Si-R370B: All versions

Si-R220D: All versions

Si-R G100: 02.54

Si-R G200: 02.54

Si-R G100B: 04.12

Si-R G110B: 04.12

Si-R G200B: 04.12

Si-R G210: 20.52

Si-R G211: 20.52

Si-R G120: 20.52

Si-R G121: 20.52

SR-M 50AP1: All versions

CPE2.3 External links

http://jvn.jp/en/vu/JVNVU96643580/index.html
http://www.fujitsu.com/jp/products/network/support/2023/fjlan-01/


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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