All news with #authentication bypass tag

🔒 Siemens Gridscale X Prepay versions prior to 4.2.1 contain two remotely exploitable authentication-related vulnerabilities that present low attack complexity. CVE-2025-40806 enables user enumeration via observable response discrepancies, and CVE-2025-40807 permits capture-replay authentication bypass allowing locked-out users to re-establish sessions. Siemens advises contacting local representatives and following SSA-356310 guidance; CISA recommends isolating devices, minimizing network exposure, and using secure remote access methods such as updated VPNs.

⚠️ Fortinet released patches for two critical FortiCloud SSO authentication bypass vulnerabilities (CVE-2025-59718, CVE-2025-59719) impacting FortiOS, FortiProxy, FortiSwitchManager, and FortiWeb. Attackers can abuse improper cryptographic signature verification in crafted SAML messages to bypass FortiCloud SSO controls. Administrators should disable FortiCloud SSO until devices are patched — either via System -> Settings in the GUI or with the provided CLI command — and apply the vendor firmware updates promptly. Fortinet also fixed related credential and password-hash issues (CVE-2025-59808, CVE-2025-64471).

🔒 CISA reports a critical authentication bypass (CWE-306, CVE-2025-13607) affecting multiple India-deployed CCTV products, including D-Link DCS-F5614-L1. The flaw permits unauthenticated remote retrieval of device configuration and account credentials with low attack complexity and high impact. D-Link has released a software update for the DCS-F5614-L1; users should install the patch, verify firmware versions, and minimize network exposure while seeking guidance from other vendors.

🔒 CISA warns of two critical vulnerabilities in Sunbird DCIM dcTrack and Power IQ appliances that could enable unauthorized access or credential theft. One is an authentication bypass via alternate remote-access channels (CVE-2025-66238); the other involves hard‑coded/default credentials (CVE-2025-66237) with a CVSS v4 high score of 8.4. Sunbird has released fixes (dcTrack 9.2.3, Power IQ 9.2.1); until systems are updated, CISA recommends restricting SSH and nonessential ports, changing deployment passwords, isolating control networks behind firewalls, and using secure VPNs for remote access.

🚨 A weak password recovery mechanism in MAXHUB Pivot client allows remote attackers to request password resets and potentially take over accounts. MAXHUB reports all Pivot client versions prior to v1.36.2 are affected and has released v1.36.2 to address the issue. CISA assigned CVE-2025-53704 and rates the flaw high severity (CVSS v4 8.7) with low attack complexity. Administrators should apply the update and follow recommended network-segmentation and access controls to reduce exposure.

🔒 CISA reports a high‑severity Missing Authentication for Critical Function vulnerability (CVE-2025-13510) affecting all versions of Iskra’s iHUB and iHUB Lite smart metering gateways, where the web management interface requires no credentials. With a CVSS v4 base score of 9.3, an unauthenticated remote attacker could reconfigure devices, update firmware, and manipulate connected systems. Iskra did not respond to coordination requests; CISA recommends isolating devices from the Internet, placing them behind firewalls, and using secure remote access methods such as VPNs while recognizing their limitations.

⚠️ Researchers warn a cross-tenant blind spot in Microsoft Teams can allow attackers to sidestep Microsoft Defender for Office 365 when users accept guest access in another tenant. Protections follow the hosting tenant, not the user's home organization, enabling attackers to create protection-free malicious tenants using low-tier licenses. Organizations should restrict B2B invitations, enable cross-tenant access controls, and train users to reject unsolicited guest invites.

🔒 Microsoft will update its Content Security Policy to block unauthorized script injection during browser-based Entra ID sign-ins at login.microsoftonline.com. The policy will permit script downloads only from Microsoft-trusted CDN domains and allow inline execution solely from trusted Microsoft sources. Rolled out globally in mid-to-late October 2026 under the Secure Future Initiative, the change excludes Microsoft Entra External ID. Organizations should test sign-in flows and avoid browser extensions or tools that inject code to prevent authentication friction.

🔒 The popular JavaScript cryptography library node-forge received a security update after researchers found a high-severity flaw that can bypass signature verification. Tracked as CVE-2025-12816, the issue stems from an ASN.1 validation interpretation conflict that allows crafted, malformed structures to pass schema checks while remaining cryptographically invalid. Maintainers released version 1.3.2; developers are strongly advised to upgrade immediately because applications relying on node-forge for PKI or signature enforcement could face authentication bypasses or signed-data tampering.

🔒 Microsoft will strengthen the Entra ID browser sign-in experience starting mid-to-late October 2026 by enforcing a stricter Content Security Policy that permits scripts only from Microsoft-trusted CDN domains and approved inline sources. The change applies to sign-ins at login.microsoftonline.com; Microsoft Entra External ID is not affected. Administrators should test sign-in flows, remove code-injecting extensions and review developer-console violations to identify and address dependencies before the rollout.

⚠️ASUS has released firmware updates to remediate nine vulnerabilities, including a critical authentication bypass (CVE-2025-59366) affecting routers with AiCloud enabled. The flaw is caused by an unintended Samba side effect and can be exploited by unauthenticated remote attackers chaining a path traversal and an OS command injection in low-complexity attacks. Users should apply the provided firmware (3.0.0.4_386, 3.0.0.4_388, 3.0.0.6_102) immediately or follow ASUS mitigation guidance for end-of-life models.

⚠️ SiRcom SMART Alert (SiSA) version 3.0.48 contains a Missing Authentication for Critical Function vulnerability that allows unauthenticated access to backend APIs and bypass of the login screen using browser developer tools. Assigned CVE-2025-13483, the issue has a CVSS v3.1 base score of 9.1 and a CVSS v4 base score of 8.8. Exploitation could enable remote activation or manipulation of emergency sirens, and CISA reports no vendor coordination; network isolation and secure remote access are recommended.

⚠️ Fluent Bit, a widely deployed log-processing agent used across containers, Kubernetes DaemonSets, and major cloud platforms, contains multiple critical vulnerabilities that can enable authentication bypass, arbitrary file writes, and full agent takeover. Oligo Security, in cooperation with AWS, disclosed five severe flaws impacting in_forward authentication and the tag-handling logic, plus path traversal and buffer-overflow defects. The project has released patches in v4.1.1 and v4.0.12; operators should update and validate configurations immediately to prevent log tampering, telemetry rerouting, and potential remote code execution.

⚠️ Grafana Labs has disclosed a maximum-severity vulnerability (CVE-2025-41115) in Grafana Enterprise that can allow new SCIM-provisioned users to be treated as administrators or used for privilege escalation. The flaw is only exploitable when SCIM provisioning is enabled and both the 'enableSCIM' feature flag and 'user_sync_enabled' option are true, because numeric SCIM externalId values were mapped directly to internal user.uid values. Affected self-managed Enterprise releases include 12.0.0 through 12.2.1; administrators should upgrade to a patched release (12.3.0, 12.2.1, 12.1.3, or 12.0.6) or disable SCIM. Grafana Cloud and managed services have already received patches.

🔒 Grafana has released security updates to address a maximum-severity flaw (CVE-2025-41115) in its SCIM provisioning component that can enable user impersonation or privilege escalation under specific configurations. The issue allows a malicious or compromised SCIM client to provision a user with a numeric externalId that may be mapped to an internal user ID. It affects Grafana Enterprise 12.0.0–12.2.1 and was fixed in 12.0.6+security-01, 12.1.3+security-01, 12.2.1+security-01 and 12.3.0. Grafana discovered the bug during an audit on November 4, 2025 and urges immediate patching.

⚠️Fortinet has faced criticism for quietly patching two zero-day vulnerabilities in its FortiWeb WAFs before publicly disclosing them. The first, CVE-2025-64446, is rated critical (CVSS 9.4) and involves a GUI path-traversal plus an authentication-bypass flaw; the second, CVE-2025-58034 (CVSS 6.7), is an OS command injection that may allow authenticated code execution. Both fixes were included in the 8.0.2 update on October 28 and have been observed exploited in the wild, prompting calls for greater transparency and urgent patching.

⚠️ D-Link has issued an advisory for remotely exploitable command-execution vulnerabilities in its end-of-life DIR-878 router. A researcher using the name Yangyifan (GitHub: yifan20020708) published technical details and proof-of-concept code demonstrating the issues. Four CVEs are listed—three allow unauthenticated remote command execution and one is a USB/physical-access overflow. D-Link recommends replacing EOL units and disabling WAN/remote management until devices are replaced.

🔒 CISA reports that iCam365 ROBOT PT Camera P201 and Night Vision Camera QC021 (versions 43.4.0.0 and prior) allow unauthenticated access to ONVIF and RTSP services. Successful exploitation could expose live video streams and camera configuration data. Two CVEs were assigned (CVE-2025-64770 and CVE-2025-62674), with CISA-calculated CVSS v4 base scores of 7.0 and CVSS v3.1 scores of 6.8. iCam365 did not respond to CISA; recommended mitigations include network isolation, firewalling, and use of secure remote access methods.

🔒 Schneider Electric has released updates for PowerChute Serial Shutdown to address multiple vulnerabilities that may be exploited locally on the network. The issues include path traversal (CWE-22, CVE-2025-11565), excessive authentication attempts (CWE-307, CVE-2025-11566), and incorrect default permissions (CWE-276, CVE-2025-11567) with CVSS scores up to 7.8. Schneider Electric published version 1.4 with fixes for Windows and Linux; administrators should upgrade and apply recommended permissions and network isolation measures.

🔒 METZ CONNECT released firmware updates addressing multiple critical vulnerabilities in EWIO2 devices that allow unauthenticated remote attackers to bypass authentication, upload and execute arbitrary code, and read PHP source files. The flaws include an authentication bypass, PHP remote file inclusion, unrestricted file uploads, path traversal, and improper access control. METZ CONNECT firmware 2.2.0 remediates these issues; administrators should schedule and install the update and ensure devices are not exposed to the internet.