B&R APROL prior 4.2-07 Tbase Server stack-based overflow

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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9.6$0-$5k0.00

A vulnerability was found in B&R APROL. It has been declared as very critical. This vulnerability affects an unknown part of the component Tbase Server. The manipulation with an unknown input leads to a stack-based overflow vulnerability. The CWE definition for the vulnerability is CWE-121. A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

Insufficient validation of input parameters when changing configuration on Tbase server in B&R APROL versions < R 4.2-07 could result in buffer overflow. This may lead to Denial-of-Service conditions or execution of arbitrary code.

The weakness was released 02/08/2023. The advisory is available at br-automation.com. This vulnerability was named CVE-2022-43764 since 10/26/2022. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 02/08/2023).

Upgrading to version 4.2-07 eliminates this vulnerability.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv3info

VulDB Meta Base Score: 9.8
VulDB Meta Temp Score: 9.6

VulDB Base Score: 9.8
VulDB Temp Score: 9.4
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 9.8
CNA Vector (Asea Brown Boveri Ltd. (ABB)): 🔒

CVSSv2info

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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Stack-based overflow
CWE: CWE-121 / CWE-119
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: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: APROL 4.2-07

Timelineinfo

10/26/2022 CVE reserved
02/08/2023 +105 days Advisory disclosed
02/08/2023 +0 days VulDB entry created
02/08/2023 +0 days VulDB last update

Sourcesinfo

Advisory: br-automation.com
Status: Confirmed

CVE: CVE-2022-43764 (🔒)

Entryinfo

Created: 02/08/2023 02:01 PM
Changes: 02/08/2023 02:01 PM (49)
Complete: 🔍

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