Exploitation of Unitronics PLCs used in Water and Wastewater Systems

CISA is responding to active exploitationlink is external of Unitronics programmable logic controllers PLCs used in the Water and Wastewater Systems WWS Sector. Cyber threat actors are targeting PLCs associated with WWS facilities, including an identified Unitronics PLC, at a U.S. water facility...

CISA Adds One Known Exploited Vulnerability to Catalog

CISA has added one new vulnerability to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2023-4911 GNU C Library Buffer Overflow Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks...

CISA Releases Five Industrial Control Systems Advisories

CISA released five Industrial Control Systems ICS advisories on November 21, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-325-01 WAGO PFC200 Series ICSA-23-325-02 Fuji Electric Tellus Lite V-Simulator...

WAGO PFC200 Series

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 2.7 ATTENTION : low attack complexity Vendor : WAGO Equipment : PFC200 Series Vulnerability : Externally Controlled Reference to a Resource in Another Sphere 2. RISK EVALUATION Successful exploitation of this vulnerability could allow an attacker with...

golang: net/http, x/net/http2: rapid stream resets can cause excessive work (CVE-2023-44487)

A flaw was found in handling multiplexed streams in the HTTP/2 protocol. A client can repeatedly make a request for a new multiplex stream and immediately send an RSTSTREAM frame to cancel it. This creates extra work for the server setting up and tearing down the streams while not hitting any...

CISA Releases The Mitigation Guide: Healthcare and Public Health (HPH) Sector

Today, CISA released the Mitigation Guide: Healthcare and Public Health HPH Sector as a supplemental companion to the HPH Cyber Risk Summary, published July 19, 2023. This guide provides defensive mitigation strategy recommendations and best practices to combat pervasive cyber threats affecting...

Juniper Releases Security Advisory for Juniper Secure Analytics

Juniper released a security advisory to address multiple vulnerabilities affecting Juniper Secure Analytics. A cyber threat actor could exploit one of these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review the Juniper advisory JSA74298link ...

CISA Adds Three Security Flaws with Active Exploitation to KEV Catalog

The U.S. Cybersecurity and Infrastructure Security Agency CISA on Thursday added three security flaws to its Known Exploited Vulnerabilities KEV catalog based on evidence of active exploitation in the wild. The vulnerabilities are as follows - CVE-2023-36584 CVSS score: 5.4 - Microsoft Windows...

CISA and FBI Issue Warning About Rhysida Ransomware Double Extortion Attacks

The threat actors behind the Rhysida ransomware engage in opportunistic attacks targeting organizations spanning various industry sectors. The advisory comes courtesy of the U.S. Cybersecurity and Infrastructure Security Agency CISA, the Federal Bureau of Investigation FBI, and the Multi-State...

Scattered Spider

SUMMARY The Federal Bureau of Investigation FBI and Cybersecurity and Infrastructure Security Agency CISA are releasing this joint Cybersecurity Advisory CSA in response to recent activity by Scattered Spider threat actors against the commercial facilities sectors and subsectors. This advisory...

CISA Adds Three Known Exploited Vulnerabilities to Catalog

CISA has added three new vulnerabilities to its Known Exploited Vulnerabilities Catalog, based on evidence of active exploitation. CVE-2023-36584 Microsoft Windows Mark of the Web MOTW Security Feature Bypass Vulnerability CVE-2023-1671 Sophos Web Appliance Command Injection Vulnerability...

CISA Releases Fourteen Industrial Control Systems Advisories

CISA released fourteen Industrial Control Systems ICS advisories on November 16, 2023. These advisories provide timely information about current security issues, vulnerabilities, and exploits surrounding ICS. ICSA-23-320-01 Red Lion Sixnet RTUs ICSA-23-320-02 Hitachi Energy MACH System Software...

Citrix Releases Security Updates for Citrix Hypervisor

Citrix has released security updates addressing vulnerabilities in Citrix Hypervisor 8.2 CU1 LTSR. A cyber threat actor could exploit these vulnerabilities to take control of an affected system. CISA encourages users and administrators to review Citrix Hypervisor Security Bulletin for...

Red Lion Sixnet RTUs

View CSAF 1. EXECUTIVE SUMMARY CVSS v3 10.0 ATTENTION : Exploitable remotely/low attack complexity Vendor : Red Lion Equipment : Sixnet RTU Vulnerabilities : Authentication Bypass using an Alternative Path or Channel, Exposed Dangerous Method or Function 2. RISK EVALUATION Successful exploitation...

Rockwell Automation Stratix Network Time Protocol ntpq atoascii Memory Corruption (CVE-2015-7852)

Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service DoS condition or modify the time being advertised by a device acting as a...

Rockwell Automation Stratix Denial of Service CRYPTO_ASSOC Memory Leak (CVE-2015-7701)

Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service DoS condition or modify the time being advertised by a device acting as a...

Rockwell Automation Stratix Denial of Service by Priming the Pump (CVE-2015-7705)

Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service DoS condition or modify the time being advertised by a device acting as a...

Rockwell Automation Stratix 5900 (CVE-2014-3360)

A vulnerability in the Session Initiation Protocol SIP implementation in Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a reload of an affected device. To exploit this vulnerability, affected devices must be configured to process SIP messages...

Rockwell Automation Stratix Denial of Service AutoKey Malicious Message (CVE-2015-7702)

Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service DoS condition or modify the time being advertised by a device acting as a...

Rockwell Automation Stratix Denial of Service Long Control Packet Message (CVE-2015-7855)

Multiple Cisco products incorporate a version of the ntpd package. Versions of this package are affected by one or more vulnerabilities that could allow an unauthenticated, remote attacker to create a denial of service DoS condition or modify the time being advertised by a device acting as a...