CODESYS Products Request unexpected sign extension

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.3$0-$5k0.00

A vulnerability was found in CODESYS Products (version unknown). It has been rated as critical. This issue affects an unknown function of the component Request Handler. The manipulation with an unknown input leads to a unexpected sign extension vulnerability. Using CWE to declare the problem leads to CWE-194. The product performs an operation on a number that causes it to be sign extended when it is transformed into a larger data type. When the original number is negative, this can produce unexpected values that lead to resultant weaknesses. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

In multiple CODESYS products, a remote attacker may craft a request which may cause an unexpected sign extension, resulting in a denial-of-service condition or memory overwrite.

The weakness was presented 06/24/2022. It is possible to read the advisory at customers.codesys.com. The identification of this vulnerability is CVE-2022-32138 since 05/31/2022. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/14/2022).

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

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 9.3
VulDB Meta Temp Score: 9.3

VulDB Base Score: 9.8
VulDB Temp Score: 9.8
VulDB Vector: 🔍
VulDB Reliability: 🔍

CNA Base Score: 8.8
CNA Vector (CERT VDE): 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Unexpected sign extension
CWE: CWE-194 / CWE-189
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
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Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

05/31/2022 🔍
06/24/2022 +24 days 🔍
06/24/2022 +0 days 🔍
07/14/2022 +20 days 🔍

Sourcesinfo

Advisory: customers.codesys.com
Status: Confirmed

CVE: CVE-2022-32138 (🔍)

Entryinfo

Created: 06/24/2022 12:41
Updated: 07/14/2022 12:26
Changes: 06/24/2022 12:41 (37), 07/14/2022 12:26 (19)
Complete: 🔍

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