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Palo Alto Networks has  shared  remediation guidance for a recently disclosed critical security flaw impacting PAN-OS that has come under active exploitation. The vulnerability, tracked as  CVE-2024-3400  (CVSS score: 10.0), could be weaponized to obtain unauthenticated remote shell command execution on susceptible devices. It has been addressed in multiple versions of PAN-OS 10.2.x, 11.0.x, and 11.1.x. There is evidence to suggest that the issue has been exploited as a zero-day since at least March 26, 2024, by a threat cluster tracked as UTA0218. The activity, codenamed  Operation MidnightEclipse , entails the use of the flaw to drop a Python-based backdoor called UPSTYLE that's capable of executing commands transmitted via specially crafted requests. The intrusions have not been linked to a known threat actor or group, but it's suspected to be a state-backed hacking crew given the tradecraft and the victimology observed. The  latest remediation advice  offered by Palo

The North Korea-linked threat actor known as Lazarus Group employed its time-tested fabricated job lures to deliver a new remote access trojan called Kaolin RAT as part of attacks targeting specific individuals in the Asia region in summer 2023. The malware could, "aside from standard RAT functionality, change the last write timestamp of a selected file and load any received DLL binary from [command-and-control] server," Avast security researcher Luigino Camastra  said  in a report published last week. The RAT acts as a pathway to deliver the FudModule rootkit, which has been recently observed leveraging a now-patched  admin-to-kernel exploit  in the appid.sys driver (CVE-2024-21338, CVSS score: 7.8) to obtain a kernel read/write primitive and ultimately disable security mechanisms. The Lazarus Group's use of job offer lures to infiltrate targets is not new. Dubbed Operation Dream Job, the  long-running campaign  has a  track record  of using various social media and

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A new malware campaign leveraged two zero-day flaws in Cisco networking gear to deliver custom malware and facilitate covert data collection on target environments. Cisco Talos, which dubbed the activity  ArcaneDoor , attributed it as the handiwork of a previously undocumented sophisticated state-sponsored actor it tracks under the name UAT4356 (aka Storm-1849 by Microsoft). "UAT4356 deployed two backdoors as components of this campaign, 'Line Runner' and 'Line Dancer,' which were used collectively to conduct malicious actions on-target, which included configuration modification, reconnaissance, network traffic capture/exfiltration and potentially lateral movement," Talos  said . The intrusions, which were first detected and confirmed in early January 2024, entail the exploitation of  two vulnerabilities  - CVE-2024-20353  (CVSS score: 8.6) - Cisco Adaptive Security Appliance and Firepower Threat Defense Software Web Services Denial-of-Service Vulnerabi

Researchers have identified a dependency confusion vulnerability impacting an archived Apache project called Cordova App Harness . Dependency confusion attacks  take place owing to the fact that package managers check the public repositories before private registries, thus allowing a threat actor to publish a malicious package with the same name to a public package repository. This causes the package manager to inadvertently download the fraudulent package from the public repository instead of the intended private repository. If successful, it can have serious consequences, such as infecting all downstream customers that install the package. A May 2023 analysis of npm and PyPI packages stored in cloud environments by enterprise security company Orca  revealed  that nearly 49% of organizations are vulnerable to a dependency confusion attack. While npm and other package managers have since introduced fixes to prioritize the private versions, application security firm Legit Security

The Russia-linked nation-state threat actor tracked as  APT28  weaponized a security flaw in the Microsoft Windows Print Spooler component to deliver a previously unknown custom malware called GooseEgg. The post-compromise tool, which is said to have been used since at least June 2020 and possibly as early as April 2019, leveraged a now-patched flaw that allowed for privilege escalation (CVE-2022-38028, CVSS score: 7.8). It was  addressed  by Microsoft as part of updates released in October 2022, with the U.S. National Security Agency (NSA) credited for reporting the flaw at the time. According to new findings from the tech giant's threat intelligence team,  APT28  – also called Fancy Bear and Forest Blizzard (formerly Strontium) – weaponized the bug in attacks targeting Ukrainian, Western European, and North American government, non-governmental, education, and transportation sector organizations. "Forest Blizzard has used the tool [...] to exploit the CVE-2022-38028 vu