An Improper Resource Locking vulnerability in the SDM component of B&R Automation Runtime versions before 6.3 and before Q4.93 may allow an unauthenticated network-based attacker to delete data causing denial of service conditions.
The flaw consists of improper resource locking (CWE-413) in the SDM component of B&R Automation Runtime. An attacker can send specially crafted requests over the network without any authentication, leading to data deletion. The lack of a proper resource locking mechanism causes data operations to not be adequately protected against concurrent or unauthorized network access.
An attacker can delete system data, resulting in service interruption and causing a denial of service (DoS) state. The vulnerability also affects data integrity in master and subordinate systems associated with the automation environment.
B&R Automation Runtime should be updated to version 6.3 or later, or to version Q4.93 or later. Detailed information about available patches is available in the vendor's security advisory: https://www.br-automation.com/fileadmin/SA25P002-f6a69e61.pdf
B&R Automation Runtime in versions earlier than 6.3 and earlier than Q4.93
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X