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The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a critical security flaw impacting Jenkins to its Known Exploited Vulnerabilities ( KEV ) catalog, following its exploitation in ransomware attacks. The vulnerability, tracked as CVE-2024-23897 (CVSS score: 9.8), is a path traversal flaw that could lead to code execution. "Jenkins Command Line Interface (CLI) contains a path traversal vulnerability that allows attackers limited read access to certain files, which can lead to code execution," CISA said in a statement. It was first disclosed by Sonar security researchers in January 2024 and addressed in Jenkins versions 2.442 and LTS 2.426.3 by disabling the command parser feature. Back in March, Trend Micro said it uncovered several attack instances originating from the Netherlands, Singapore, and Germany, and that it found instances where remote code execution exploits for the flaw were actively being traded. In recent weeks, CloudSEK and ...

A new type of malware called UULoader is being used by threat actors to deliver next-stage payloads like Gh0st RAT and Mimikatz . The Cyberint Research Team, which discovered the malware, said it's distributed in the form of malicious installers for legitimate applications targeting Korean and Chinese speakers. There is evidence pointing to UULoader being the work of a Chinese speaker due to the presence of Chinese strings in program database (PDB) files embedded within the DLL file. "UULoader's 'core' files are contained in a Microsoft Cabinet archive (.cab) file which contains two primary executables (an .exe and a .dll) which have had their file header stripped," the company said in a technical report shared with The Hacker News. One of the executables is a legitimate binary that's susceptible to DLL side-loading, which is used to sideload the DLL file that ultimately loads the final stage, an obfuscate file named "XamlHost.sys" that...

Cybersecurity researchers have uncovered a surge in malware infections stemming from malvertising campaigns distributing a loader called FakeBat. "These attacks are opportunistic in nature, targeting users seeking popular business software," the Mandiant Managed Defense team said in a technical report. "The infection utilizes a trojanized MSIX installer, which executes a PowerShell script to download a secondary payload." FakeBat , also called EugenLoader and PaykLoader, is linked to a threat actor named Eugenfest. The Google-owned threat intelligence team is tracking the malware under the name NUMOZYLOD and has attributed the Malware-as-a-Service (MaaS) operation to UNC4536. Attack chains propagating the loader malware make use of drive-by download techniques to push users searching for popular software toward bogus lookalike sites that host booby-trapped MSI installers. Some of the malware families delivered via FakeBat include IcedID, RedLine Stealer, Lumma...

According to recent research on  employee offboarding , 70% of IT professionals say they’ve experienced the negative effects of incomplete IT offboarding, whether in the form of a security incident tied to an account that wasn't deprovisioned, a surprise bill for resources that aren’t in use anymore, or a missed handoff of a critical resource or account. This is despite an average of five hours spent per departing employee on activities like finding and deprovisioning SaaS accounts. As the SaaS footprint within most organizations continues to expand, it is becoming exponentially more difficult (and time-consuming) to ensure all access is deprovisioned or transferred when an employee leaves the organization.  How Nudge Security can help Nudge Security is a  SaaS management platform  for modern IT governance and security. It discovers every cloud and SaaS account ever created by anyone in your organization, including generative AI apps, giving you a single source of...

Malicious actors are using a cloud attack tool named Xeon Sender to conduct SMS phishing and spam campaigns on a large scale by abusing legitimate services. "Attackers can use Xeon to send messages through multiple software-as-a-service (SaaS) providers using valid credentials for the service providers," SentinelOne security researcher Alex Delamotte said in a report shared with The Hacker News. Examples of the services used to facilitate the en masse distribution of SMS messages include Amazon Simple Notification Service (SNS), Nexmo, Plivo, Proovl, Send99, Telesign, Telnyx, TextBelt, Twilio. It's important to note here that the activity does not exploit any inherent weaknesses in these providers. Rather, the tool uses legitimate APIs to conduct bulk SMS spam attacks. It joins tools like SNS Sender that have increasingly become a way to send bulk smishing messages and ultimately capture sensitive information from targets. Distributed via Telegram and hacking fo...

A newly patched security flaw in Microsoft Windows was exploited as a zero-day by Lazarus Group , a prolific state-sponsored actor affiliated with North Korea. The security vulnerability, tracked as CVE-2024-38193 (CVSS score: 7.8), has been described as a privilege escalation bug in the Windows Ancillary Function Driver (AFD.sys) for WinSock. "An attacker who successfully exploited this vulnerability could gain SYSTEM privileges," Microsoft said in an advisory for the flaw last week. It was addressed by the tech giant as part of its monthly Patch Tuesday update. Credited with discovering and reporting the flaw are Gen Digital researchers Luigino Camastra and Milánek. Gen Digital owns a number of security and utility software brands like Norton, Avast, Avira, AVG, ReputationDefender, and CCleaner. "This flaw allowed them to gain unauthorized access to sensitive system areas," the company disclosed last week, adding it discovered the exploitation in early J...