PAX Technology A920 USB injection

CVSS Meta Temp Score
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CTI Interest Score
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7.1$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in PAX Technology A920. This affects an unknown part of the component USB Handler. Such manipulation leads to input validation. This vulnerability is documented as CVE-2023-4818. The attack can be executed directly on the physical device. There is not any exploit available.

Detailsinfo

A vulnerability was found in PAX Technology A920 (the affected version unknown) and classified as critical. Affected by this issue is an unknown part of the component USB Handler. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

PAX A920 device allows to downgrade bootloader due to a bug in its version check. The signature is correctly checked and only bootloader signed by PAX can be used.  The attacker must have physical USB access to the device in order to exploit this vulnerability.

The weakness was released 01/15/2024 by Hubert Jasudowicz and Adam Kliś. The advisory is shared for download at blog.stmcyber.com. This vulnerability is handled as CVE-2023-4818 since 09/07/2023. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1055.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.1
VulDB Meta Temp Score: 7.1

VulDB Base Score: 6.6
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.6
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Injection
CWE: CWE-74 / CWE-707 / CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Yes
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/07/2023 🔍
01/15/2024 +130 days 🔍
01/15/2024 +0 days 🔍
10/10/2024 +269 days 🔍

Sourcesinfo

Advisory: blog.stmcyber.com
Researcher: Hubert Jasudowicz, Adam Kliś
Status: Confirmed

CVE: CVE-2023-4818 (🔍)
GCVE (CVE): GCVE-0-2023-4818
GCVE (VulDB): GCVE-100-250736

Entryinfo

Created: 01/15/2024 16:36
Updated: 10/10/2024 23:04
Changes: 01/15/2024 16:36 (37), 02/03/2024 12:44 (11), 10/10/2024 23:04 (17)
Complete: 🔍
Cache ID: 216::103

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