All news with #patch tag

Understanding Zero-Day Attacks: Risks and Defenses

🛡️ Zero-day attacks exploit software vulnerabilities that are unknown to the vendor, enabling attackers to compromise systems before patches are available. They target high-value platforms such as operating systems, web browsers, enterprise applications, and IoT devices, often using spear-phishing or zero-click techniques. Because signature-based tools frequently miss novel exploits, effective defense requires rapid patching, behavior-based detection (EDR, NDR, XDR), network segmentation, and investigative analysis of packet-level data to detect, contain, and learn from incidents.

Windows updates hide password icon on lock screen issue

🔒 Microsoft warned that updates to Windows 11 released since August may make the password sign‑in icon invisible on the lock screen for systems with multiple sign‑in options. The button remains functional — hovering over the blank space reveals the password control. The issue is tied to the non‑security preview KB5064081 and later releases on 24H2/25H2. Microsoft has provided no timeline for a fix and offers no workaround beyond the hover action.

Hardening Microsoft Exchange SE for 2026 and Beyond

🔒 The article by Stan Kaminsky summarizes practical hardening steps for on-premises Microsoft Exchange, emphasizing that Exchange Server Subscription Edition (Exchange SE) will be the only supported on-premises option in 2026 following the end of support for Exchange Server 2019. It outlines common attacker techniques — from password spraying and web shells to mail-flow rule abuse — and highlights immediate actions like migrating to Exchange SE or obtaining Extended Security Updates, applying regular Cumulative Updates, and enabling the Emergency Mitigation service. Recommendations also cover baseline configuration, EDR/EPP deployment, modern authentication, Kerberos adoption, TLS and HSTS, administrative access controls, PowerShell stream signing and protections for forged mail headers.

node-forge patched for ASN.1 signature verification bypass

🔒 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.

Talos Discloses Multiple Dell, Lasso, GL.iNet Flaws

🔒 Cisco Talos disclosed multiple vulnerabilities across Dell ControlVault, the Entr'ouvert Lasso SAML library, and the GL.iNet Slate AX travel router. Issues range from a hard-coded password and privilege escalation in ControlVault to memory corruption and buffer overflows that can enable arbitrary code execution, a type confusion bug and DoS in Lasso, and an OTA firmware downgrade in GL.iNet. Vendors have issued patches under Cisco’s disclosure policy and Snort rule updates are available to detect exploitation. Administrators should apply vendor updates, verify OTA integrity mechanisms, and deploy IDS signatures promptly.

ASUS warns of critical auth bypass in AiCloud routers

⚠️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.

Webinar: Safely Patching Systems Using Community Tools

🔒 Community-driven package managers like Chocolatey and Winget speed deployments but can introduce supply-chain risks when packages are added or updated without rigorous vetting. Gene Moody, Field CTO at Action1, will lead a free webinar that tests these tools in practice, highlights common weak points, and demonstrates pragmatic safeguards such as source pinning, allow-lists, and hash/signature verification. The session focuses on actionable steps to help teams prioritize updates using known-exploited vulnerability data (KEV) and to choose whether to rely on community repos, vendor sources, or a hybrid approach while maintaining operational velocity.

Opto 22 groov View: API exposes user API keys and metadata

🔒 CISA warns that Opto 22's groov View API exposes API keys and user metadata through a users endpoint that returns keys for all accounts to any principal with an Editor role. The issue affects groov View Server for Windows R1.0a–R4.5d and GRV‑EPIC‑PR1/PR2 firmware prior to 4.0.3. Successful exploitation could disclose credentials, reveal keys, and enable privilege escalation; Opto 22 has released patches and recommends upgrading to Server R4.5e and firmware 4.0.3 alongside network-level mitigations.

Rockwell Arena Stack-Based Buffer Overflow Patch Released

🔒 Rockwell Automation has released an update for Arena Simulation to address a stack-based buffer overflow (CWE-121) in the parsing of DOE files that could allow local attackers to execute arbitrary code. The issue, tracked as CVE-2025-11918 (CVSS v4 7.1), affects versions 16.20.10 and earlier and requires opening a malicious DOE file. Rockwell fixed the vulnerability in 16.20.11; users should upgrade or apply recommended mitigations to reduce exposure.

Ashlar-Vellum Products: Out-of-Bounds Write & Heap Overflow

🔒 Ashlar-Vellum has released updates addressing two vulnerabilities—an Out-of-Bounds Write (CVE-2025-65084) and a Heap-based Buffer Overflow (CVE-2025-65085)—affecting Cobalt, Xenon, Argon, Lithium, and Cobalt Share up to version 12.6.1204.207. Both flaws could allow local attackers to disclose information or execute arbitrary code; vendor updates to 12.6.1204.208 or later are available. CISA assigns a CVSS v4 base score of 8.4, notes low attack complexity, and reports no known public exploitation; these issues are not remotely exploitable.

Fluent Bit Bugs Could Enable Complete Cloud Takeover

⚠️ 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.

Fluent Bit Vulnerabilities Threaten Cloud and Kubernetes

⚠️ Researchers disclosed five vulnerabilities in Fluent Bit, the open-source telemetry agent, that can be chained to bypass authentication, write or overwrite files, execute code, corrupt logs, and cause denial-of-service conditions. CERT/CC noted many issues require network access, and fixes were released in Fluent Bit 4.1.1 and 4.0.12 with AWS participating in coordinated disclosure. Operators are urged to update immediately and apply mitigations such as avoiding dynamic tags, mounting configs read-only, and running the agent as a non-root user.

SCCM and WSUS in Hybrid Environments: Adopt Cloud Patching

☁️ Legacy Windows patching tools like SCCM and WSUS are struggling to meet the needs of distributed workforces because they depend on LAN or VPN check‑ins. The piece highlights WSUS deprecation and frequent synchronization, database, and re‑indexing failures that stall remediation. Cloud‑native, SaaS patch management (for example, Action1) allows endpoints to check in securely over the internet, use global delivery networks, and deliver faster, more consistent compliance without on‑prem infrastructure.

Critical Fluent Bit Vulnerabilities Expose Telemetry Risk

⚠️ Fluent Bit, a widely deployed telemetry agent, has multiple critical vulnerabilities disclosed by Oligo Security affecting inputs, tag processing and output handling. Patches are available in Fluent Bit v4.1.1 and v4.0.12 released in early October 2025; older releases remain at risk. Operators are advised to update immediately, avoid dynamic tags, lock down output file parameters, run with least privilege and mount configuration directories read-only to reduce exposure.

Pre-auth RCE in Oracle Identity Manager Forces Patching

⚠️ The Cybersecurity and Infrastructure Security Agency (CISA) added a critical pre-authenticated remote code execution flaw in Oracle Identity Manager (CVE-2025-61757) to its Known Exploited Vulnerabilities catalog after active exploitation was observed. Searchlight Cyber reported that a flawed authentication filter combined with matrix/query parameters lets attackers bypass auth and reach a Groovy compile endpoint, enabling RCE through compile-time annotation processing. Oracle fixed the issue in its October 2025 Critical Patch Update; federal agencies must remediate by December 12, 2025.

CISA Adds Critical Oracle Identity Manager RCE to KEV

🔴 Oracle Identity Manager is affected by a critical unauthenticated remote code execution flaw, CVE-2025-61757, impacting versions 12.2.1.4.0 and 14.1.2.1.0. Disclosed by Searchlight Cyber on 20 November and reported by Oracle on 21 November, the bug was added to the CISA KEV catalog the same day. The issue resides in the REST WebServices component and carries a CVSS score of 9.8, enabling HTTP access to execute arbitrary code and potentially allowing full takeover. CISA urges immediate patching or isolation of affected services from the public internet.

Windows 11 24H2 Bug Crashes Explorer and Start Menu

⚠️ Microsoft confirmed a Windows 11, version 24H2 bug in cumulative updates released since July 2025 that causes XAML dependency packages not to register in time, leading Explorer, StartMenuExperienceHost, ShellHost.exe and other shell components to crash or fail to initialize. Microsoft provided three PowerShell Add-AppxPackage commands as a temporary workaround and says a restart is required after running them. Organizations using non-persistent VDI should run a logon script to provision the packages before Explorer launches; a permanent fix is in development with no timeline.

ShadowPad Delivered via WSUS Exploits CVE-2025-59287

🛡️ A recently patched WSUS deserialization flaw, CVE-2025-59287, has been weaponized to install the ShadowPad backdoor on Windows servers. AhnLab's ASEC reports attackers used PowerCat to spawn a CMD shell and then leveraged certutil and curl to retrieve payloads from 149.28.78.189:42306. ShadowPad was deployed via DLL side-loading of ETDApix.dll by ETDCtrlHelper.exe and runs as an in-memory loader with plugin support, anti-detection, and persistence.

CISA Adds Oracle Identity Manager Flaw to KEV List

⚠️ CISA has added CVE-2025-61757 to its Known Exploited Vulnerabilities (KEV) catalog following reports of active exploitation targeting Oracle Identity Manager. The flaw, a missing-authentication issue with a CVSS score of 9.8, affects versions 12.2.1.4.0 and 14.1.2.1.0 and was addressed in Oracle's recent quarterly updates. Searchlight Cyber researchers demonstrated that an allow-list bypass using URI tricks such as ?WSDL or ;.wadl can expose protected API endpoints and enable pre-authenticated remote code execution via the groovyscriptstatus endpoint. Federal civilian agencies must apply the patch by December 12, 2025.

CISA Warns: Oracle Identity Manager RCE Actively Exploited

🚨 CISA has added CVE-2025-61757, a pre-authentication remote code execution vulnerability in Oracle Identity Manager, to its Known Exploited Vulnerabilities catalog and ordered federal agencies to patch by December 12 under BOD 22-01. The flaw, disclosed by Searchlight Cyber, abuses an authentication bypass in REST APIs by appending parameters such as ?WSDL or ;.wadl to URL paths, exposing a Groovy compilation endpoint. Researchers showed that Groovy's annotation-processing can execute code at compile time, enabling pre-auth RCE. Oracle released a fix on October 21, 2025; CISA warned the issue is being actively exploited.