VDB-235899 · CVE-2023-31430 · GCVE-0-2023-31430

Brocade Fabric OS prior 9.1.1c/9.2.0 Command buffer overflow

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.
5.4	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical has been found in Brocade Fabric OS. This issue affects some unknown processing of the component Command Handler. Performing a manipulation results in buffer overflow. This vulnerability is cataloged as CVE-2023-31430. The attack must be initiated from a local position. There is no exploit available. It is recommended to upgrade the affected component.

Detailsinfo

A vulnerability classified as critical has been found in Brocade Fabric OS. This affects some unknown processing of the component Command Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on availability. The summary by CVE is:

A buffer overflow vulnerability in “secpolicydelete” command in Brocade Fabric OS before Brocade Fabric OS v9.1.1c and v9.2.0 could allow an authenticated privileged user to crash the Brocade Fabric OS switch leading to a denial of service.

The weakness was shared 08/02/2023. It is possible to read the advisory at support.broadcom.com. This vulnerability is uniquely identified as CVE-2023-31430 since 04/28/2023. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 9.1.1c or 9.2.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Brocade

Name

Fabric OS

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.5
VulDB Meta Temp Score: 5.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 5.5
CNA Vector (Brocade Communications Systems, LLC): 🔍

CVSSv2info

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

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

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

04/28/2023 🔍
08/02/2023 +96 days 🔍
08/02/2023 +0 days 🔍
08/02/2023 +0 days 🔍

Sourcesinfo

Advisory: support.broadcom.com
Status: Confirmed

CVE: CVE-2023-31430 (🔍)
GCVE (CVE): GCVE-0-2023-31430
GCVE (VulDB): GCVE-100-235899

Entryinfo

Created: 08/02/2023 09:48
Changes: 08/02/2023 09:48 (49)
Complete: 🔍
Cache ID: 216::103