All news with #authentication bypass tag

⚠️ A critical authentication flaw (CVE-2026-1579) in the MAVLink protocol used by PX4 Autopilot can allow unauthenticated actors with MAVLink access to execute arbitrary shell commands via the SERIAL_CONTROL message. The issue affects PX4 Autopilot v1.16.0_SITL_latest_stable. PX4 recommends enabling MAVLink 2.0 message signing for all non‑USB links and following the vendor's security hardening guidance to reduce exposure.

⚠️ CISA has ordered federal agencies to patch Citrix NetScaler appliances for CVE-2026-3055 by Thursday, April 2, after vendors warned the flaw is being actively exploited. The vulnerability arises from insufficient input validation in ADC and Gateway appliances configured as SAML identity providers and can enable unauthenticated attackers to steal admin session IDs and other sensitive information. Watchtowr reported in-the-wild abuse days after Citrix released fixes on March 23, and CISA has added the issue to its KEV Catalog and invoked BOD 22-01.

⚠️ A critical SQL injection, CVE-2026-21643, is being actively exploited against FortiClient EMS, allowing unauthenticated attackers to execute arbitrary SQL via crafted HTTP requests. The flaw affects EMS 7.4.4 when multi-tenant mode is enabled; Fortinet released 7.4.5 to remediate. Researchers note the endpoint returns database error messages and lacks lockout protections, enabling rapid data extraction and credential theft. Administrators should patch immediately, remove internet exposure, and inspect HTTP headers for anomalous SQL.

🔒 TP-Link released firmware updates for its Archer NX200, NX210, NX500, and NX600 routers to fix multiple vulnerabilities, including a critical authentication bypass that can permit unauthenticated firmware uploads via certain HTTP CGI endpoints. The vendor additionally removed a hardcoded cryptographic key and patched two command injection flaws that require administrative access. TP-Link warned customers to install the latest firmware immediately to block potential attacks. Failure to update may leave devices susceptible to takeover or configuration manipulation.

🛡️ Pharos Controls Mosaic Show Controller firmware 2.15.3 contains a Missing Authentication for Critical Function vulnerability (CVE-2026-2417) that can allow an unauthenticated attacker to execute arbitrary commands with root privileges. The flaw has a CVSS v3.1 base score of 9.8 (Critical). Pharos Controls recommends upgrading to version 2.16 or later and isolating controllers from public networks.

⚠ Citrix has published updates for NetScaler ADC and NetScaler Gateway to fix two vulnerabilities, including a critical memory overread (CVE-2026-3055) that can leak sensitive information from appliance memory. Exploitation requires specific configurations—SAML IdP for CVE-2026-3055 and gateway or AAA roles for CVE-2026-4368. Affected builds include 14.1 before 14.1-66.59 and 13.1 before 13.1-62.23; customers should inspect configurations and apply patches immediately.

🚨 Arctic Wolf reported exploitation of CVE-2025-32975 (CVSS 10.0), an authentication-bypass in Quest KACE Systems Management Appliance (SMA), against internet-exposed instances beginning the week of March 9, 2026. Attackers impersonated administrative users, executed remote commands to download Base64 payloads via curl from an external host, and created additional admin accounts using runkbot.exe. Observed post-compromise activity included Windows Registry modifications, credential harvesting with Mimikatz, reconnaissance, and RDP access to backup systems and domain controllers. Administrators should apply the May 2025 fixes and avoid exposing SMA directly to the internet.

🔒 Oracle has released fixes for a critical pre-authentication remote code execution flaw, CVE-2026-21992, affecting Oracle Identity Manager and Oracle Web Services Manager. The issue carries a CVSS score of 9.8 and is described by NVD as "easily exploitable" over HTTP by unauthenticated attackers. Oracle says the flaw can enable full takeover of vulnerable instances and urges customers to apply updates immediately.

⚠ Sansec has disclosed a critical file upload vulnerability dubbed PolyShell in Magento's REST API that can let unauthenticated attackers upload arbitrary executables and achieve remote code execution or account takeover. The flaw stems from how custom product options accept a base64-encoded file_info object and write files to pub/media/custom_options/quote/. Adobe applied a fix in the 2.4.9 pre-release (APSB25-94), but most production stores remain unpatched; operators should restrict and block access to the upload directory, verify nginx/Apache rules, scan for web shells, and consider a specialized WAF.

🔒 Researchers discovered nine critical vulnerabilities across several low-cost KVM-over-IP units, including Angeet/Yeeso, GL-iNet, Sipeed, and JetKVM. Flaws range from unauthenticated file uploads and command injection to weak firmware verification and exposed debugging interfaces, enabling pre-authentication root takeover on some devices. Eclypsium warns these inexpensive, Linux-based single-port KVMs are increasingly common in business and pose outsized risks if exposed directly to networks.

⚠ A newly disclosed vulnerability called PolyShell affects all Magento Open Source and Adobe Commerce version 2 installations, enabling unauthenticated code execution and potential account takeover. Adobe has issued a fix only in the 2.4.9 alpha, leaving production sites exposed. Sansec warns the exploit method is already circulating and urges admins to restrict access to pub/media/custom_options/, verify nginx/Apache rules, and scan for uploaded shells or backdoors.

🧛 Cisco Talos highlights a growing trend in 2025: attackers increasingly seek to be authorised as legitimate users rather than relying solely on loud exploits. Telemetry shows nearly a third of MFA spray attacks targeted IAM applications and fraudulent device registrations surged 178%, indicating adversaries focus on the mechanisms that grant access. Talos urges organisations to harden authentication, prioritise patching, manage EOS/EOL devices, and adopt phishing-resistant controls as part of a broader defensive posture.

🔒 Many organizations invest heavily in login protections but leave password reset paths less scrutinized, creating an easy escalation route once attackers gain a foothold. The article explains common abuse scenarios — from helpdesk social engineering and intercepted reset tokens to misuse by over-permissioned admins — and recommends seven practical mitigations, including MFA, device posture checks, strict password policies, and avoiding knowledge-based authentication. It also highlights Specops tools to harden reset workflows and block breached passwords.

🔒 Multiple vulnerabilities in IGL-Technologies eParking.fi allow unauthenticated actors to connect to OCPP WebSocket endpoints, impersonate charging stations, issue commands, hijack sessions, or disrupt charging services via denial-of-service. CISA rates the most severe issue CVSSv3.1 9.4 (Critical). IGL-Technologies has implemented stronger authentication, device-level whitelisting, rate limiting, and enhanced monitoring; encrypted OCPP deployments and the proprietary eTolppa protocol are not impacted.

⚠️ Multiple authentication and session-management vulnerabilities in CTEK Chargeportal could allow remote attackers to impersonate charging stations, send unauthorized OCPP commands, or disrupt charging services. The highest-severity issue (CVE-2026-25192) affects WebSocket authentication and is rated CVSS 9.4 (Critical). Other flaws enable brute-force attempts, session hijacking, and exposure of station identifiers. CTEK plans to sunset Chargeportal in April 2026; operators should restrict network exposure, isolate control networks, and contact CTEK support for guidance.

🤖 A user attempting to remotely control his own DJI Romo robot vacuum inadvertently gained control of approximately 7,000 devices around the world. The incident highlights how insecure many consumer IoT devices remain and how a single action can cascade into widespread exposure. Beyond mere nuisance, such mass control raises privacy and safety concerns if exploited at scale. The episode underscores the urgent need for stronger device authentication, secure update mechanisms, and clearer vendor responsibility.

🔒 Eclypsium researchers disclosed nine vulnerabilities in low-cost IP KVM devices from GL-iNet, Angeet/Yeeso, Sipeed, and JetKVM. The most severe flaws can allow unauthenticated attackers to gain root or execute arbitrary code and operate at BIOS/UEFI levels, enabling keystroke injection, booting from removable media, and persistence beyond OS defenses. Some vendors have issued firmware fixes, but critical issues in Angeet ES3 remain unpatched. Administrators should apply available updates, isolate KVMs, and enforce stronger access controls.

🔐 By 2026, the central competition in identity-related work will be the ability to prove that the person behind a high-impact action is a real, accountable human. Generative AI and deepfakes create synthetic identities that can pass routine checks, contaminate risk models and hijack estate workflows. Defenses must focus on provenance, cross-channel consistency and continuous, risk-based verification tied to audit-grade trails.

🔒 Apple has issued Background Security Improvements to address CVE-2026-20643, a cross-origin flaw in WebKit's Navigation API that could be exploited to bypass the same-origin policy when processing maliciously crafted web content. Apple fixed the issue by improving input validation and shipped patches in iOS 26.3.1 (a), iPadOS 26.3.1 (a), macOS 26.3.1 (a), and macOS 26.3.2 (a). Researcher Thomas Espach is credited with the report. Users should keep Automatically Install enabled in Settings > Privacy and Security to receive these lightweight fixes promptly.

🚨 A critical out-of-bounds write in the LINEMODE Set Local Characters (SLC) suboption handler of GNU InetUtils telnetd (CVE-2026-32746) enables unauthenticated remote attackers to achieve remote code execution as root. Discovered by Dream on March 11, 2026, the flaw affects releases through 2.7 and carries a CVSS score of 9.8. Exploitation can succeed during the initial Telnet handshake with a single connection to port 23; no credentials or user interaction are required. A patch is expected by April 1, 2026; until then, disable Telnet, avoid running telnetd as root, and block port 23.