VDB-233033 · CVE-2023-34471 · GCVE-0-2023-34471

AMI MegaRAC SPX HMAC missing cryptographic step

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.
6.8	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in AMI MegaRAC SPX and classified as critical. This impacts an unknown function of the component HMAC. The manipulation leads to missing cryptographic step. This vulnerability is listed as CVE-2023-34471. The attack must be carried out from within the local network. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in AMI MegaRAC SPX (the affected version unknown) and classified as critical. This issue affects an unknown part of the component HMAC. The manipulation with an unknown input leads to a missing cryptographic step vulnerability. Using CWE to declare the problem leads to CWE-325. The product does not implement a required step in a cryptographic algorithm, resulting in weaker encryption than advertised by the algorithm. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

AMI SPx contains a vulnerability in the BMC where a user may cause a missing cryptographic step by generating a hash-based message authentication code (HMAC). A successful exploit of this vulnerability may lead to the loss confidentiality, integrity, and authentication.

The weakness was presented 07/06/2023. The advisory is shared at 9443417.fs1.hubspotusercontent-na1.net. The identification of this vulnerability is CVE-2023-34471 since 06/07/2023. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. MITRE ATT&CK project uses the attack technique T1600 for this issue.

Upgrading eliminates this vulnerability.

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Vendor

Name

MegaRAC SPX

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.9
VulDB Meta Temp Score: 6.8

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

NVD Base Score: 8.1
NVD Vector: 🔍

CNA Base Score: 6.3
CNA Vector (AMI): 🔍

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: Missing cryptographic step
CWE: CWE-325
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

06/07/2023 🔍
07/06/2023 +29 days 🔍
07/06/2023 +0 days 🔍
07/23/2023 +17 days 🔍

Sourcesinfo

Advisory: 9443417.fs1.hubspotusercontent-na1.net
Status: Confirmed

CVE: CVE-2023-34471 (🔍)
GCVE (CVE): GCVE-0-2023-34471
GCVE (VulDB): GCVE-100-233033

Entryinfo

Created: 07/06/2023 07:04
Updated: 07/23/2023 15:24
Changes: 07/06/2023 07:04 (47), 07/23/2023 15:24 (11)
Complete: 🔍
Cache ID: 216::103