ZeroHour

Source: SecurityWeek

5 stories in the last 24h

$1 Million Sandbox Challenge Uncovers Linux Kernel Flaws

Vercel's $1M sandbox challenge surfaced two Linux kernel networking defects—one leaking host kernel memory, one crashing hosts—with CVEs pending.

Vercel ran a two-week, $1 million sandbox escape challenge (Aug 18–Sep 1) on its Firecracker-based microVM sandbox, receiving 1,285 reports and committing ~$325k in payouts (1 Critical, 7 High, 15 Medium, 49 Low validated so far). No attacker accessed real customer data. The most important filing found two independent Linux kernel networking stack defects—one leaks host kernel memory, the other deterministically crashes the host—with wide implications for cloud providers isolating workloads via the same kernel layer. Fixes are under private review with CVEs pending; Vercel also plans to open-source its agentic report-triage agent built on the Eve framework running Kimi K3.

SecurityWeek · 7h agoVulnerability

Texas Utility CenterPoint Energy Confirms Breach After Hacker Leaks Data

CenterPoint Energy confirmed hackers stole customer personal data from an external-facing system after a forum leak of 7.5 million records.

CenterPoint Energy, a Houston-based utility serving roughly 7 million customers across Indiana, Minnesota, Ohio and Texas, told the SEC that an unauthorized third party obtained customer personal information through an external-facing system. On September 12 a hacker claimed to have stolen nearly 7.5 million records and posted a 2.5 GB archive on a cybercrime forum, threatening to attack main infrastructure next. The company says electric and gas delivery is unaffected and it expects no material impact. Earlier 2024 leak claims were attributed to Cl0p's 2023 MOVEit campaign via a third party.

SecurityWeek · 7h agoData breach

240,000 Hit by Data Breach at Japan’s Digital Agency

Japan's Digital Agency says hackers exploited a VPN flaw and a maintenance account to steal ~246,000 records on 240,000 people.

Japan's Digital Agency disclosed a breach of its Government Solution Service (GSS) affecting roughly 240,000 individuals, discovered in late June. Attackers exploited a publicly disclosed vulnerability in a VPN product and used a maintenance and operations employee's account to access over 246,000 records, including names (~236,000), email addresses (~231,000), phone numbers (~94,000), and addresses (~1,000). The agency blocked external access to the affected server, suspended the account, and said no ID numbers or financial account data were compromised.

SecurityWeekupdated · 8h agofirst · 11h agoData breach in the wild 2 sources

Thai Broadband Provider Hacked via Fortinet Vulnerability

Hackers exploited Fortinet CVE-2024-21762 RCE to breach Thai broadband provider 3BB, deploying MeshCentral backdoors and credential-harvesting tools across its network.

Hunt.io uncovered an intrusion staging directory in Thailand containing 298 files of custom tooling built for Triple T Broadband (3BB) and its former owner Jasmine. Initial access came via fingerprinting a FortiGate SSL-VPN appliance and exploiting CVE-2024-21762 for remote code execution, after probing CVE-2018-13379, CVE-2022-42475, and CVE-2023-27997. The actor also probed F5 BIG-IP for CVE-2021-22986, CVE-2022-1388, and CVE-2023-46747, escalated privileges with PwnKit and Dirty COW, used MeshCentral as a C2 backdoor, harvested SSH/database/SNMP/Radius credentials, deployed PHP web shells, and ran cleanup scripts to hide the intrusion.

Hacked HBO Max Reddit Account Used for Malware Delivery via ClickFix Attack

Attackers hijacked HBO Max's verified Reddit account to push 108 malicious ads delivering AMOS and Amatera infostealers via ClickFix prompts.

Threat actors compromised the official u/hbomax Reddit account and ran 108 malicious ads over 48 hours in a campaign tracked as PasteSwitch, directing users to a fake hbomaxx[.]us site. ClickFix prompts tricked macOS users into running curl | zsh payloads (MacSync, AMOS Helper, fake wallets) and Windows users into executing MSHTA/PowerShell delivering Amatera Stealer. AnimateClipper and ZigClipper clipboard hijackers swapped cryptocurrency addresses using a blockchain-hosted C&C active since early 2026. Reddit suspended the ads after notification.

SecurityWeekupdated · 11h agofirst · 14h agoMalware in the wild 7 sources