All news with #rce tag

Ten Vulnerabilities in Libbiosig and Multiple Vendors

🔒 Cisco Talos disclosed multiple vulnerabilities affecting libbiosig, Tenda AC6, SAIL, PDF‑XChange Editor, and Foxit PDF Reader. The flaws include integer overflows, heap and stack buffer overflows, out‑of‑bounds reads, authentication and firmware validation weaknesses, and other memory corruption issues that can lead to remote code execution or information disclosure. Vendors have released patches in coordination with Talos and Snort coverage is available to detect exploitation attempts. Apply vendor updates and detection rules immediately to reduce exposure.

ShadowSilk Targets 35 Government Entities in APAC Region

🔎 Group-IB attributes a new cluster dubbed ShadowSilk to recent intrusions against 35 government and related organizations across Central Asia and APAC. The operators employ spear-phishing with password-protected archives to deploy a custom loader that conceals command-and-control traffic using Telegram bots and achieves persistence via Windows Registry modifications. Observed tooling includes web shells (ANTSWORD, Behinder, Godzilla, FinalShell), tunneling utilities, Cobalt Strike, and bespoke credential-stealing components used to exfiltrate data.

Countering PRC State-Sponsored Network Compromise Worldwide

🛡️ U.S. and international agencies warn that People's Republic of China (PRC) state-sponsored actors have been compromising global networks since at least 2021 to collect communications and other intelligence. Actors targeted telecommunications backbone routers, provider- and customer-edge devices, and infrastructure across government, transportation, lodging, and military sectors. They exploited known CVEs (for example CVE-2024-21887, CVE-2024-3400, Cisco CVEs), modified devices to maintain persistence using on-box PCAP/containers and tunnels, and exfiltrated data via peering and covert channels. The advisory includes IP indicators, binary hashes, Yara/Snort rules, hunting guidance, and prioritized mitigations to patch, isolate management planes, harden credentials, and detect PCAP creation.

Citrix Patches NetScaler Zero-Days as Active Exploits Continue

🔒Citrix has released patches for three critical zero-day vulnerabilities in NetScaler ADC and NetScaler Gateway (CVE-2025-7775, CVE-2025-7776, CVE-2025-8424), including pre-auth remote code execution observed in the wild. The vendor provided fixes for affected 14.1, 13.1 and 12.1-FIPS/NDcPP builds and said no workaround is available. Security researchers and CISA urged immediate patching and forensic checks for potential backdoors.

Citrix Patches NetScaler Flaws; Confirms Active Exploitation

🔒 Citrix has issued patches for three vulnerabilities in NetScaler ADC and NetScaler Gateway, and confirmed active exploitation of CVE-2025-7775. The flaws include two memory overflow issues (CVSS 9.2 and 8.8) that can lead to remote code execution or denial-of-service, and an improper access-control bug (CVSS 8.7) affecting the management interface. Fixes are available in multiple 12.x–14.x releases with no workarounds; Citrix credited external researchers for reporting the issues.

MixShell Malware Targets U.S. Supply Chain via Contact Forms

⚠️ Cybersecurity researchers warn of a targeted social‑engineering campaign delivering an in‑memory implant called MixShell to supply‑chain manufacturers through corporate 'Contact Us' forms. The activity, tracked as ZipLine by Check Point, uses weeks of credible exchanges, fake NDAs and weaponized ZIPs containing LNK files that trigger PowerShell loaders. MixShell runs primarily in memory, uses DNS tunneling for C2 with HTTP fallback, and enables remote commands, file access, reverse proxying, persistence and lateral movement. Malicious archives are staged on abused Heroku subdomains, illustrating use of legitimate PaaS for tailored delivery.

INVT VT-Designer and HMITool Vulnerabilities Alert Issued

🔔 CISA warns of multiple memory-corruption vulnerabilities in INVT products VT-Designer (v2.1.13) and HMITool (v7.1.011). The flaws—several out-of-bounds writes and a type confusion bug—occur in PM3 and VPM file parsing and can enable arbitrary code execution in the vulnerable process. Issues are tracked as CVE-2025-7223 through CVE-2025-7231 with CVSS v4 scores up to 8.5. Exploitation requires user interaction, such as opening a crafted file.

CISA Adds Three Actively Exploited Flaws in Citrix, Git

🚨 CISA added three vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog affecting Citrix Session Recording and Git. Two Citrix issues (CVE-2024-8068, CVE-2024-8069; CVSS 5.1) can lead to privilege escalation to the NetworkService account or limited remote code execution for authenticated intranet users, while CVE-2025-48384 (CVSS 8.1) in Git stems from carriage return handling that can enable arbitrary code execution. Federal agencies must mitigate these issues by September 15, 2025.

What 17,845 GitHub MCP Servers Reveal About Risk and Abuse

🛡️ VirusTotal ran a large-scale audit of 17,845 GitHub projects implementing the MCP (Model Context Protocol) using Code Insight powered by Gemini 2.5 Flash. The automated review initially surfaced an overwhelming number of issues, and a refined prompt focused on intentional malice marked 1,408 repos as likely malicious. Manual checks showed many flagged projects were demos or PoCs, but the analysis still exposed numerous real attack vectors—credential harvesting, remote code execution via exec/subprocess, supply-chain tricks—and recurring insecure practices. The post recommends treating MCP servers like browser extensions: sign and pin versions, sandbox or WASM-isolate them, enforce strict permissions and filter model outputs to remove invisible or malicious content.

Code Insight Expands to Cover Software Supply Chain Risks

🛡️ VirusTotal’s Code Insight now analyzes a broader set of software supply chain formats — including CRX, XPI, VSIX, Python WHL, NPM packages, and MCP protocol integrations. The tool inspects code logic to detect obfuscation, dynamic code fetching, credential theft, and remote command execution in extensions and packages. Recent findings include malicious Chrome and Firefox extensions, a deceptive VS Code extension, and compromised Python and NPM packages. This capability complements traditional signature- and ML-based classification by surfacing behavior-based risks.

Threat Actors Abuse SDKs to Sell Victim Bandwidth Stealthily

🔍 Unit 42 observed a campaign exploiting CVE-2024-36401 in GeoServer to remotely deploy legitimate SDKs or apps that sell victims' internet bandwidth. The attackers leverage JXPath evaluation to achieve RCE across multiple GeoServer endpoints, then install lightweight binaries that operate quietly to monetize unused network capacity. This approach often uses unmodified vendor SDKs to maximize stealth and persistence while avoiding traditional malware indicators.

Static Tundra: Russian State Actor Targets Cisco Devices

🔒 Cisco Talos identifies the threat cluster Static Tundra as a long-running, Russian state-sponsored actor that compromises unpatched and end-of-life Cisco networking devices to support espionage operations. The group aggressively exploits CVE-2018-0171 and leverages weak SNMP community strings to enable local TFTP retrieval of startup and running configurations, often exposing credentials and monitoring data. Talos also observed persistent firmware implants, notably SYNful Knock, and recommends immediate patching or disabling Smart Install, strengthening authentication, and implementing configuration auditing and network monitoring to detect exfiltration and implanted code.

PerfektBlue: Bluetooth Vulnerabilities in Car Infotainment

🔒 Researchers have identified a chain of four Bluetooth vulnerabilities collectively named PerfektBlue in the OpenSynergy Blue SDK, used in millions of vehicles. An attacker that pairs via Bluetooth can exploit AVRCP flaws to execute code on the head unit and inherit its Bluetooth privileges, potentially accessing microphones, location data, and personal information. Vehicle owners should update head-unit firmware when patches are available and disable Bluetooth when not in use.

CISA Adds Trend Micro Apex One KEV OS Command Injection

🛡️ CISA has added CVE-2025-54948, an OS command injection vulnerability in Trend Micro Apex One, to its Known Exploited Vulnerabilities (KEV) Catalog after observing active exploitation. The entry underscores the significant risk these flaws pose to federal and nonfederal networks and reiterates that BOD 22-01 requires Federal Civilian Executive Branch agencies to remediate KEV entries by specified deadlines. CISA strongly urges all organizations to prioritize timely remediation and integrate KEV fixes into standard vulnerability management practices.

Siemens Engineering Platforms Vulnerability Advisory

⚠️ Siemens and CISA published an advisory describing a deserialization of untrusted data flaw in multiple engineering and automation products that has been assigned CVE-2024-54678 and a CVSS v3.1 base score of 8.2. The vulnerability permits a local, authenticated attacker to misuse a Windows Named Pipe to cause type confusion and execute arbitrary code with application privileges. Siemens lists numerous affected SIMATIC, SIMOTION, SINAMICS, SIRIUS, and TIA Portal components and offers mitigations such as running affected software on single-user Windows hosts or restricting OS access to administrators; some products currently have no fix planned and are documented in SSA-693808.

Rockwell Micro800 Series: Critical Remote Exploitation Risk

⚠️ Rockwell Automation's Micro800 family contains multiple high-severity vulnerabilities (CVSS v4 9.3) that could be exploited remotely to achieve code execution or privilege escalation. Affected models include Micro820, Micro850, and Micro870 series on specified firmware versions; impacts stem from flaws in Azure RTOS NetX Duo and ThreadX and malformed CIP packets. Rockwell and CISA advise updating to V23.011+ where available, applying vendor fixes for CVE-2023-48691/48692/48693 and CVE-2025-7693, minimizing network exposure, and performing risk assessments before deployment.

Microsoft Patch Tuesday: August 2025 Security Fixes

🔒 Microsoft released fixes for more than 100 vulnerabilities in August 2025, including at least 13 rated Critical. Notable flaws include CVE-2025-53786, which lets attackers pivot from compromised on‑premises Exchange Server instances into cloud tenant services, and CVE-2025-53779 (BadSuccessor), a Kerberos dMSA weakness that can yield domain admin rights. Other high‑risk bugs affect GDI+, Word preview and NTLM; several fixes require configuration steps beyond patch installation.

Microsoft August 2025 Patch Tuesday: 111 Vulnerabilities

⚠️ Microsoft released its August 2025 Patch Tuesday updates addressing 111 vulnerabilities, including 13 marked critical. The fixes span remote code execution, elevation-of-privilege and information-disclosure flaws across Windows, Hyper-V, Microsoft Office, GDI+ and cloud services. Microsoft reports no observed in-the-wild exploitation but notes several issues where exploitation is assessed as “more likely.” Talos is issuing Snort detection rules and urges administrators to apply vendor updates and intrusion-detection signatures promptly.

August 2025 Patch Tuesday: 107 CVEs, 13 Critical, Zero-Day

🛡️ Microsoft’s August 2025 Patch Tuesday addresses 107 CVEs, including one publicly disclosed Windows Kerberos zero‑day (CVE-2025-53779) and 13 Critical flaws. Notable fixes cover high‑severity RCEs in the Windows Graphics Component and GDI+ and an NTLM elevation‑of‑privilege issue. Microsoft has released patches; organizations should apply updates promptly and use Falcon Exposure Management to prioritize and visualize exposure.

Erlang/OTP SSH RCE: CVE-2025-32433 Exploitation Wave

⚠️ Unit 42 details active exploitation of CVE-2025-32433, a critical (CVSS 10.0) unauthenticated RCE in the Erlang/OTP SSH daemon that processes SSH protocol messages prior to authentication. Researchers reproduced and validated the bug and observed exploit bursts from May 1–9, 2025, with payloads delivering reverse shells and DNS-based callbacks to randomized subdomains. Immediate remediation is to upgrade to OTP-27.3.3, OTP-26.2.5.11 or OTP-25.3.2.20 (or later); temporary measures include disabling SSH, restricting access and applying Unit 42 signature 96163.