WAGO 750-81xx Packet allocation of resources

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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7.3$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in WAGO 750-81xx, 750-82xx, 752-8303, 762-4xxx, 762-5xxx and 762-6xxx. The impacted element is an unknown function of the component Packet Handler. This manipulation causes allocation of resources. The identification of this vulnerability is CVE-2021-34568. It is possible to initiate the attack remotely. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in WAGO 750-81xx, 750-82xx, 752-8303, 762-4xxx, 762-5xxx and 762-6xxx. Affected by this vulnerability is an unknown functionality of the component Packet Handler. The manipulation with an unknown input leads to a allocation of resources vulnerability. The CWE definition for the vulnerability is CWE-770. The product allocates a reusable resource or group of resources on behalf of an actor without imposing any restrictions on the size or number of resources that can be allocated, in violation of the intended security policy for that actor. As an impact it is known to affect availability. The summary by CVE is:

In WAGO I/O-Check Service in multiple products an unauthenticated remote attacker can send a specially crafted packet containing OS commands to provoke a denial of service.

The weakness was shared 11/09/2022 as VDE-2020-036. It is possible to read the advisory at cert.vde.com. This vulnerability is known as CVE-2021-34568 since 06/10/2021. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

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

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.5
VulDB Meta Temp Score: 7.3

VulDB Base Score: 7.5
VulDB Temp Score: 7.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 7.5
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: Allocation of resources
CWE: CWE-770 / 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

06/10/2021 🔍
11/09/2022 +517 days 🔍
11/09/2022 +0 days 🔍
11/09/2022 +0 days 🔍

Sourcesinfo

Advisory: VDE-2020-036
Status: Not defined

CVE: CVE-2021-34568 (🔍)
GCVE (CVE): GCVE-0-2021-34568
GCVE (VulDB): GCVE-100-213319

Entryinfo

Created: 11/09/2022 20:44
Changes: 11/09/2022 20:44 (48)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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