All news with #authentication bypass tag

📷 An undocumented configuration export port on certain ZKTeco CCTV camera models permits unauthenticated access to sensitive device information. The exposed data can include running services and camera account credentials, creating a risk of information disclosure and unauthorized access. ZKTeco released a firmware update V5.0.1.2.20260421 to remediate the issue and urges immediate upgrading. CISA recommends minimizing network exposure, using firewalls and segmentation, and restricting Internet access to control devices.

🔒 A security researcher alleges Microsoft quietly changed Azure Backup for AKS behavior after rejecting his March disclosure and blocking a CVE, arguing the issue required pre-existing administrative access. The reported flaw purportedly allowed a user with only the Backup Contributor role to gain cluster-admin privileges via Trusted Access. Microsoft maintains the behavior was expected and that no product changes were made, yet the researcher observed new permission checks and a shift to manual Trusted Access configuration after disclosure. CERT/CC validated the bug but the CVE process stalled, leaving defenders with limited visibility.

⚠ Cisco has disclosed a maximum-severity authentication bypass in its Catalyst SD-WAN Controller and Catalyst SD-WAN Manager platforms that has been observed exploited in the wild. The flaw lets unauthenticated remote actors craft control-connection requests to bypass peer authentication and gain administrative privileges. Cisco has released updates and urges immediate patching because no workarounds exist. The issue is tracked as CVE-2026-20182 with a CVSS score of 10.0 and was added to CISA’s KEV list.

🔍 This post argues that many on-camera "age verification" schemes are not primarily about keeping minors out but about deanonymizing critics and giving governments a pretext to deny platform access. It notes real-world abuses such as attempts to de-bank protesters and explains why complete failure to exclude minors is unsurprising when that is not the objective. The piece also links related technical developments — from provocative zero-knowledge research to hard drive firmware reverse engineering — that change the threat landscape and raise questions about hardware attestation and vendor control.

🔒 CISA has added CVE-2026-20182, a critical authentication bypass in Cisco Catalyst SD-WAN Controller, to its Known Exploited Vulnerabilities catalog and requires Federal Civilian Executive Branch agencies to remediate by May 17, 2026. The flaw is rated 10.0 (CVSS) and allows an unauthenticated remote attacker to obtain administrative privileges. Cisco links active exploitation to threat cluster UAT-8616 and advises customers to follow its advisories and mitigation guidance.

🔒 Wordfence disclosed a critical authentication bypass in the Burst Statistics WordPress plugin (CVE-2026-8181) that lets unauthenticated actors impersonate admin users via REST API requests and even create rogue admin accounts. The flaw, introduced in versions 3.4.0 and 3.4.1, misinterprets wp_authenticate_application_password() return values, treating errors or null as successful authentication. Users should upgrade to 3.4.2 or disable the plugin immediately.

⚠ Cisco warns of an actively exploited authentication bypass in Cisco Catalyst SD-WAN Controller (CVE-2026-20182) rated 10.0, affecting on-premises and SD-WAN Cloud Manager deployments. The vulnerability stems from a peering authentication mechanism that "is not working properly" and can grant high-privileged, non-root administrative access and NETCONF control. Cisco detected exploitation in May, released security updates as the only full remediation, and advises restricting management-plane access and reviewing peering and auth logs for IOCs.

🔒 Cisco has released fixes for a maximum-severity authentication bypass in Cisco Catalyst SD-WAN Controller (CVE-2026-20182) that it says has been exploited in limited attacks. The flaw allows a remote unauthenticated attacker to become an authenticated peer and obtain administrative privileges by abusing the peering authentication mechanism. Affected deployments include On-Prem, Cisco SD-WAN Cloud-Pro, Cisco SD-WAN Cloud (Cisco Managed), and Cisco SD-WAN for Government (FedRAMP); Cisco urges immediate patching and recommends auditing /var/log/auth.log for suspicious peering or publickey entries.

⚠️ The Siemens SIPROTEC 5 series employs insufficiently random values for session identifiers on a subset of web endpoints, enabling an unauthenticated remote actor to brute-force and hijack valid sessions. Exploitation can permit limited read access to web server information without authorization. Siemens is preparing fixes and recommends updating to V11.0 or later where available, validating updates, and applying network protections such as segmentation, firewalls, and controlled remote access procedures.

🔒 Siemens reports that Opcenter RDnL is affected by a Missing Authentication for Critical Function in Apache ActiveMQ Artemis. An unauthenticated actor on an adjacent network can force a broker to open an outbound Core federation to an attacker-controlled broker, risking message injection and availability impacts. Siemens and Apache recommend updating to Apache Artemis 2.52.0 or later and applying mitigations such as Core interceptors, disabling Core on exposed acceptors, and enforcing two-way SSL.

🔒 PraisonAI contained a critical authentication bypass (CVE-2026-44338) in its legacy Flask API server that sets AUTH_ENABLED = False and AUTH_TOKEN = None by default. Exploitation allows unauthenticated callers to enumerate configured agents via /agents and to trigger workflows through /chat, potentially consuming model quotas and exposing run results. The flaw affects versions 2.5.6–4.6.33 and was fixed in v4.6.34; operators are advised to update, audit deployments, and rotate exposed credentials.

🔍 Sysdig reported that a newly disclosed authentication bypass in the open-source orchestration framework PraisonAI was probed by internet scanners about 3 hours and 44 minutes after a GitHub advisory published on May 11. The flaw stems from a legacy Flask API server that ships with authentication disabled by default, affecting versions 2.5.6 through 4.6.33 and fixed in 4.6.34. Researchers urge immediate upgrades and monitoring for the “CVE-Detector/1.0” user-agent and suspicious /api/agents and related paths.

🔒 A researcher known as Chaotic Eclipse (Nightmare-Eclipse on GitHub) published proof-of-concept exploits named YellowKey and GreenPlasma that bypass BitLocker protections and enable local privilege escalation on affected Windows versions. YellowKey abuses the Windows Recovery Environment (WinRE) and NTFS transaction replay to spawn a shell and access encrypted volumes, while GreenPlasma allows arbitrary memory-section creation that can be escalated to SYSTEM. The author said the disclosures were driven by dissatisfaction with Microsoft's handling of reports. Microsoft says it investigates and supports coordinated disclosure.

🔒Android 17, rolling out next month, expands security and privacy features to combat device theft, enhance threat detection, and block banking scam calls. The OS will work with banking apps to verify caller authenticity via app-level queries and bank-provided number lists, and will automatically terminate suspected scam calls. Initial partners include Revolut, Itaú Unibanco, and Nubank, and Google plans support back to Android 11. The release also broadens Live Threat Detection, strengthens Advanced Protection, and adds biometric Mark as lost locking and other anti-theft measures.

🔒 ABB disclosed multiple vulnerabilities in the WebPro SNMP Card PowerValue affecting earlier firmware releases. The flaws include an authentication bypass (the device validates only the first character of session cookies and tokens), insufficient session expiration and uncontrolled resource consumption that can cause DoS and Modbus instability on port 502. ABB issued fixes in v1.1.8.p and recommends contacting ABB Digital Service Support and applying defensive measures from the product manual.

⚠️ABB disclosed multiple vulnerabilities in AC500 V3 PLCs that can bypass user management, expose visualization files, compromise PKI certificates, or cause denial-of-service (CVE-2025-2595, CVE-2025-41659, CVE-2025-41691). The issues stem from forced browsing, a permission flaw in the optional CmpOpenSSL component, and a NULL pointer dereference in CmpDevice. ABB corrected the issues in firmware 3.9.0 via Automation Builder 2.9.0; no workarounds are available and customers should apply the update promptly.

🔒 SAP released its May 2026 security updates addressing 15 vulnerabilities across multiple products, including two critical flaws affecting Commerce Cloud and S/4HANA. The most severe (CVE-2026-34263) is a missing authentication check in Commerce Cloud that can allow unauthenticated remote code execution via improper Spring Security configuration. The other critical (CVE-2026-34260) permits low-complexity SQL injection by attackers with basic privileges, risking sensitive data exposure and potential service crashes. SAP also patched one high and 11 medium-severity issues and reports no evidence of in-the-wild exploitation to date.

🔒 Knostic’s internet-wide reconnaissance discovered 1,862 exposed MCP servers, and manual checks of 119 instances showed every sampled server returned internal tool listings without authentication. High-impact flaws like EchoLeak (CVE-2025-32711) and mcp-remote (CVE-2025-6514) illustrate how poisoned documents and command-injection in widely used packages can enable silent data exfiltration or full system compromise. The article prescribes immediate adoption of zero-trust controls: authentication on every interaction, network segmentation, cryptographic signing for tool definitions, continuous integrity monitoring, and human approval for sensitive actions.

🔐 Researchers disclosed a new Linux backdoor called PamDOORa, advertised on the Russian cybercrime forum Rehub by an actor named "darkworm". The PAM-based post-exploitation toolkit provides persistent OpenSSH access via a magic password and specific TCP port and can harvest credentials for all users who authenticate through the compromised host. Flare.io says the implant also includes anti-forensic features to tamper with authentication logs and evasion techniques. The seller listed it at $1,600 in March 2026, later reducing the price to about $900.

🔒 A critical WebSocket vulnerability in Cline's Kanban server (CVSS 9.7) allows any webpage a developer visits to silently exfiltrate workspace data, inject terminal commands and terminate agent sessions. Disclosed by Oasis Security on May 7, it affects the Kanban npm package v0.1.59 and stems from missing origin validation and authentication on three local WebSocket endpoints. Updating to v0.1.66 and disabling the default bypass permissions flag are recommended mitigations.