CERT-UA Reports: 11 Ukrainian Telecom Providers Hit by Cyberattacks

The Computer Emergency Response Team of Ukraine CERT-UA has revealed that threat actors "interfered" with at least 11 telecommunication service providers in the country between May and September 2023. The agency is tracking the activity under the name UAC-0165, stating the intrusions led to servi...

Ukrainian Military Targeted in Phishing Campaign Leveraging Drone Manuals

Ukrainian military entities are the target of a phishing campaign that leverages drone manuals as lures to deliver a Go-based open-source post-exploitation toolkit called Merlin. "Since drones or Unmanned Aerial Vehicles UAVs have been an integral tool used by the Ukrainian military, malware-lace...

Siemens SIMATIC, SIPLUS Products Integer Overflow or Wraparound (CVE-2023-28831)

The ANSI C OPC UA SDK contains an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation. This could allow an unauthenticated remote attacker to create a denial of service condition by sending a specially crafted certificate. Thi...

Siemens SIMATIC Products ANSI C OPC UA SDK Denial of Service Vulnerability

SIMATIC Cloud Connect 7 is an IoT gateway for connecting programmable logic controllers to cloud services and allows field devices with an OPC UA server interface to be connected as OPC UA clients.SIMATIC Drive Controllers are designed for the automation of production machines and combine the...

CVE-2023-28831

The OPC UA implementations ANSI C and C++ in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation. This could allow an unauthenticated remote attacker to create a denial of service condition by...

Integer overflow

The OPC UA implementations ANSI C and C++ in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation. This could allow an unauthenticated remote attacker to create a denial of service condition by...

CVE-2023-28831

The OPC UA implementations ANSI C and C++ in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation. This could allow an unauthenticated remote attacker to create a denial of service condition by...

CVE-2023-28831

The OPC UA implementations ANSI C and C++ in affected products contain an integer overflow vulnerability that could cause the application to run into an infinite loop during certificate validation. This could allow an unauthenticated remote attacker to create a denial of service condition by...

CVE-2023-28831

CVE-2023-28831 is an integer overflow in Siemens OPC UA SDKs (ANSI C/C++) that could cause an infinite loop during certificate validation, enabling unauthenticated remote DoS via a crafted certificate. Connected documents confirm affected products span Siemens SINUMERIK MC/ONE and related SIMATIC...

Cybercriminals Using PowerShell to Steal NTLMv2 Hashes from Compromised Windows

A new cyber attack campaign is leveraging the PowerShell script associated with a legitimate red teaming tool to plunder NTLMv2 hashes from compromised Windows systems primarily located in Australia, Poland, and Belgium. The activity has been codenamed Steal-It by Zscaler ThreatLabz. "In this...

Ukraine's CERT Thwarts APT28's Cyberattack on Critical Energy Infrastructure

The Computer Emergency Response Team of Ukraine CERT-UA on Tuesday said it thwarted a cyber attack against an unnamed critical energy infrastructure facility in the country. The intrusion, per the agency, started with a phishing email containing a link to a malicious ZIP archive that activates th...

Huawei HarmonyOS Denial of Service Vulnerability (CNVD-2023-70285)

SIMATIC Cloud Connect 7 is an IoT gateway for connecting programmable logic controllers to cloud services and allows field devices with an OPC UA server interface to be connected as OPC UA clients.SIMATIC Drive Controllers are designed for the automation of production machines and combine the...

(Pwn2Own) Softing Secure Integration Server Directory Traversal Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Softing Secure Integration Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handli...

(0Day) (Pwn2Own) Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC client certificates. The issue results...

(Pwn2Own) Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC UA ConditionRefresh requests. By sending...

(0Day) (Pwn2Own) Softing Secure Integration Server FileDirectory OPC UA Object Arbitrary File Creation Vulnerability

This vulnerability allows remote attackers to create arbitrary files on affected installations of Softing Secure Integration Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handli...

(0Day) (Pwn2Own) Inductive Automation Ignition ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability

This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Inductive Automation Ignition. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC UA ConditionRefresh requests. By sending...

(Pwn2Own) Inductive Automation Ignition OPC UA Quick Client Task Scheduling Exposed Dangerous Function Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. Authentication is required to exploit this vulnerability. The specific flaw exists within the Ignition Gateway server. The issue results from the exposure of a dangerou...

(Pwn2Own) Inductive Automation Ignition OPC UA Quick Client Missing Authentication for Critical Function Authentication Bypass Vulnerability

This vulnerability allows remote attackers to bypass authentication on affected installations of Inductive Automation Ignition. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the...

(Pwn2Own) Inductive Automation Ignition OPC UA Quick Client Cross-Site Scripting Remote Code Execution Vulnerability

This vulnerability allows remote attackers to execute arbitrary code on affected installations of Inductive Automation Ignition. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the...