CODESYS V3 TCP Connection CmpBlkDrvTcp resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.3$0-$5k0.00

Summaryinfo

A vulnerability was found in CODESYS V3. It has been declared as problematic. This affects the function CmpBlkDrvTcp of the component TCP Connection Handler. Executing a manipulation can lead to resource consumption. The identification of this vulnerability is CVE-2022-30791. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in CODESYS V3 (version now known). It has been declared as problematic. This vulnerability affects the function CmpBlkDrvTcp of the component TCP Connection 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 availability. CVE summarizes:

In CmpBlkDrvTcp of CODESYS V3 in multiple versions an uncontrolled ressource consumption allows an unauthorized attacker to block new TCP connections. Existing connections are not affected.

The weakness was shared 07/11/2022. The advisory is shared for download at customers.codesys.com. This vulnerability was named CVE-2022-30791 since 05/16/2022. There are known technical details, but no exploit is 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.

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: 5.3
VulDB Meta Temp Score: 5.3

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

CNA Base Score: 5.3
CNA Vector (CERT VDE): 🔍

CVSSv2info

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

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

05/16/2022 🔍
07/11/2022 +56 days 🔍
07/11/2022 +0 days 🔍
07/21/2022 +10 days 🔍

Sourcesinfo

Advisory: customers.codesys.com
Status: Confirmed

CVE: CVE-2022-30791 (🔍)
GCVE (CVE): GCVE-0-2022-30791
GCVE (VulDB): GCVE-100-203524

Entryinfo

Created: 07/11/2022 14:27
Updated: 07/21/2022 09:45
Changes: 07/11/2022 14:27 (38), 07/21/2022 09:45 (10)
Complete: 🔍
Cache ID: 216::103

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