eQ-3 Homematic CCU2/Homematic CCU3 Session ID resource consumption

CVSS Meta Temp Score
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CTI Interest Score
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6.7$0-$5k0.00

Summaryinfo

A vulnerability categorized as problematic has been discovered in eQ-3 Homematic CCU2 and Homematic CCU3. The impacted element is an unknown function of the component Session ID Handler. Executing a manipulation can lead to resource consumption. This vulnerability is tracked as CVE-2019-9583. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in eQ-3 Homematic CCU2 and Homematic CCU3 (affected version unknown). It has been declared as problematic. This vulnerability affects an unknown functionality of the component Session ID Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect confidentiality. CVE summarizes:

eQ-3 Homematic CCU2 and CCU3 obtain session IDs without login. This allows a Denial of Service and is a starting point for other attacks. Affected versions for CCU2: 2.35.16, 2.41.5, 2.41.8, 2.41.9, 2.45.6, 2.45.7, 2.47.10, 2.47.12, 2.47.15. Affected versions for CCU3: 3.41.11, 3.43.16, 3.45.5, 3.45.7, 3.47.10, 3.47.15.

The weakness was disclosed 08/14/2019. This vulnerability was named CVE-2019-9583 since 03/06/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

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

The entries VDB-140094 and VDB-140093 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.7

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

NVD Base Score: 8.2
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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

03/06/2019 🔍
08/14/2019 +161 days 🔍
08/15/2019 +1 days 🔍
11/25/2023 +1563 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2019-9583 (🔍)
GCVE (CVE): GCVE-0-2019-9583
GCVE (VulDB): GCVE-100-140092
See also: 🔍

Entryinfo

Created: 08/15/2019 11:43
Updated: 11/25/2023 14:59
Changes: 08/15/2019 11:43 (36), 07/28/2020 12:12 (17), 11/25/2023 14:59 (3)
Complete: 🔍
Cache ID: 216::103

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