AMI MegaRAC SPX HMAC missing cryptographic step

CVSS Meta Temp Score
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CTI Interest Score
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6.8$0-$5k0.00

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.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
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

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

Exploitinginfo

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

Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

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Price Prediction: 🔍
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Threat Intelligenceinfo

Interest: 🔍
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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 (🔍)

Entryinfo

Created: 07/06/2023 07:04 AM
Updated: 07/23/2023 03:24 PM
Changes: 07/06/2023 07:04 AM (47), 07/23/2023 03:24 PM (11)
Complete: 🔍
Cache ID: 18:B97:40

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