VDB-235914 · CVE-2023-31926 · GCVE-0-2023-31926

Brocade Fabric OS prior 9.1.1c/9.2.0 System File permissions

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.
5.7	$0-$5k	0.00

Summaryinfo

A vulnerability classified as problematic was found in Brocade Fabric OS. This affects an unknown function of the component System File Handler. The manipulation results in an unknown weakness. This vulnerability is cataloged as CVE-2023-31926. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Brocade Fabric OS. It has been classified as problematic. Affected is an unknown function of the component System File Handler. CWE is classifying the issue as CWE-281. The product does not preserve permissions or incorrectly preserves permissions when copying, restoring, or sharing objects, which can cause them to have less restrictive permissions than intended. This is going to have an impact on integrity, and availability. CVE summarizes:

System files could be overwritten using the less command in Brocade Fabric OS before Brocade Fabric OS v9.1.1c and v9.2.0.

The weakness was shared 08/02/2023. The advisory is available at support.broadcom.com. This vulnerability is traded as CVE-2023-31926 since 04/29/2023. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1222 by the MITRE ATT&CK project.

Upgrading to version 9.1.1c or 9.2.0 eliminates this vulnerability.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

Brocade

Name

Fabric OS

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.8
VulDB Meta Temp Score: 5.7

VulDB Base Score: 4.6
VulDB Temp Score: 4.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.1
CNA Vector (Brocade Communications Systems, LLC): 🔍

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: Permissions
CWE: CWE-281 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
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: 🔍

Upgrade: Fabric OS 9.1.1c/9.2.0

Timelineinfo

04/29/2023 🔍
08/02/2023 +95 days 🔍
08/02/2023 +0 days 🔍
08/24/2023 +22 days 🔍

Sourcesinfo

Advisory: support.broadcom.com
Status: Confirmed

CVE: CVE-2023-31926 (🔍)
GCVE (CVE): GCVE-0-2023-31926
GCVE (VulDB): GCVE-100-235914

Entryinfo

Created: 08/02/2023 09:58
Updated: 08/24/2023 11:30
Changes: 08/02/2023 09:58 (37), 08/24/2023 11:30 (14)
Complete: 🔍
Cache ID: 216::103