VDB-235445 · CVE-2023-38555 · GCVE-0-2023-38555

Fujitsu Si-R/Si-RG/Si-M Setting improper authentication

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.4	$0-$5k	0.00

Summaryinfo

A vulnerability was found in Fujitsu Si-R, Si-RG and Si-M. It has been rated as critical. Affected by this issue is some unknown functionality of the component Setting Handler. The manipulation leads to improper authentication. This vulnerability is referenced as CVE-2023-38555. The attack needs to be initiated within the local network. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Fujitsu Si-R, Si-RG and Si-M (version unknown) and classified as critical. This issue affects an unknown function of the component Setting Handler. The manipulation with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

Authentication bypass vulnerability in Fujitsu network devices Si-R series and SR-M series allows a network-adjacent unauthenticated attacker to obtain, change, and/or reset configuration settings of the affected products. Affected products and versions are as follows: 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 V02.54 and earlier, Si-R G200 V02.54 and earlier, Si-R G100B V04.12 and earlier, Si-R G110B V04.12 and earlier, Si-R G200B V04.12 and earlier, Si-R G210 V20.52 and earlier, Si-R G211 V20.52 and earlier, Si-R G120 V20.52 and earlier, Si-R G121 V20.52 and earlier, and SR-M 50AP1 all versions.

The weakness was published 07/26/2023. The advisory is shared at jvn.jp. The identification of this vulnerability is CVE-2023-38555 since 07/20/2023. Neither technical details nor an exploit are publicly available.

Upgrading eliminates this vulnerability.

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Productinfo

Vendor

Fujitsu

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.4

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper authentication
CWE: CWE-287
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/20/2023 🔍
07/26/2023 +6 days 🔍
07/26/2023 +0 days 🔍
08/18/2023 +23 days 🔍

Sourcesinfo

Advisory: jvn.jp
Status: Confirmed

CVE: CVE-2023-38555 (🔍)
GCVE (CVE): GCVE-0-2023-38555
GCVE (VulDB): GCVE-100-235445

Entryinfo

Created: 07/26/2023 11:11
Updated: 08/18/2023 18:29
Changes: 07/26/2023 11:11 (38), 08/18/2023 18:29 (11)
Complete: 🔍
Cache ID: 216::103