Motorola MTM5000 TETRA Authentication Challenge entropy

CVSS Meta Temp Score
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CTI Interest Score
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5.9$0-$5k0.00

Summaryinfo

A vulnerability classified as problematic was found in Motorola MTM5000. This issue affects some unknown processing of the component TETRA Authentication Challenge Handler. The manipulation results in entropy. This vulnerability was named CVE-2022-26943. The attack needs to be approached within the local network. There is no available exploit.

Detailsinfo

A vulnerability classified as problematic has been found in Motorola MTM5000 (version unknown). Affected is an unknown function of the component TETRA Authentication Challenge Handler. The manipulation with an unknown input leads to a entropy vulnerability. CWE is classifying the issue as CWE-332. The lack of entropy available for, or used by, a Pseudo-Random Number Generator (PRNG) can be a stability and security threat. This is going to have an impact on confidentiality. CVE summarizes:

The Motorola MTM5000 series firmwares generate TETRA authentication challenges using a PRNG using a tick count register as its sole entropy source. Low boottime entropy and limited re-seeding of the pool renders the authentication challenge vulnerable to two attacks. First, due to the limited boottime pool entropy, an adversary can derive the contents of the entropy pool by an exhaustive search of possible values, based on an observed authentication challenge. Second, an adversary can use knowledge of the entropy pool to predict authentication challenges. As such, the unit is vulnerable to CVE-2022-24400.

The weakness was presented 10/19/2023. This vulnerability is traded as CVE-2022-26943 since 03/11/2022. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1600.001.

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

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.9

VulDB Base Score: 3.1
VulDB Temp Score: 3.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Entropy
CWE: CWE-332 / CWE-331 / CWE-330
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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

03/11/2022 🔍
10/19/2023 +586 days 🔍
10/19/2023 +0 days 🔍
10/19/2023 +0 days 🔍

Sourcesinfo

Status: Not defined

CVE: CVE-2022-26943 (🔍)
GCVE (CVE): GCVE-0-2022-26943
GCVE (VulDB): GCVE-100-242928

Entryinfo

Created: 10/19/2023 13:31
Changes: 10/19/2023 13:31 (45)
Complete: 🔍
Cache ID: 216::103

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