A brief daily summary of what is important in information security. The podcast is published every weekday and designed to get you ready for the day with a brief, usually 5 minute long, summary of current network security related events. The content is late breaking, educational and based on listener input as well as on input received by the SANS Internet Stormcenter. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
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SANS Stormcast Wednesday, September 24th, 2025: DoS against the Analyst; GitHub Improvements; Solarwinds and Supermicro BMC vulnerabilities
Distracting the Analyst for Fun and Profit Our undergraduate intern, Tyler House analyzed what may have been a small DoS attack that was likely more meant to distract than to actually cause a denial of service https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Distracting%20the%20Analyst%20for%20Fun%20and%20Profit/32308 GitHub s plan for a more secure npm supply chain GitHub outlined its plan to harden the supply chain, in particular in light of the recent attack against npm packages https://github.blog/security/supply-chain-security/our-plan-for-a-more-secure-npm-supply-chain/ SolarWinds Web Help Desk AjaxProxy Deserialization of Untrusted Data Remote Code Execution Vulnerability (CVE-2025-26399) SolarWinds Web Help Desk was found to be susceptible to an unauthenticated AjaxProxy deserialization remote code execution vulnerability that, if exploited, would allow an attacker to run commands on the host machine. This vulnerability is a patch bypass of CVE-2024-28988, which in turn is a patch bypass of CVE-2024-28986. https://www.solarwinds.com/trust-center/security-advisories/cve-2025-26399 Vulnerabilities in Supermicro BMC Firmware CVE-2025-7937 CVE-2025-6198 Supermicro fixed two vulnerabilities that could allow an attacker to compromise the BMC with rogue firmware. https://www.supermicro.com/en/support/security_BMC_IPMI_Sept_2025
SANS Stormcast Tuesday, September 23rd, 2025: Ivanti EPMM Exploit; GitHub Impersonation
CISA Reports Ivanti EPMM Exploit Sightings Two different organizations submitted backdoors to CISA, which are believed to have been installed using Ivanti vulnerabilities patched in May. https://www.cisa.gov/news-events/analysis-reports/ar25-261a Lastpass Observes Impersonation on GitHub Lastpass noted a number of companies being impersonated via fake GitHub repositories in order to trick victims to download Mac malware. https://blog.lastpass.com/posts/attack-targeting-macs-via-github-pages Oracle Scheduler Ransomware Ransomware has been discovered that gained access to systems via an exposed Oracle Database Scheduler service. https://labs.yarix.com/2025/09/elons-proxima-black-shadow-related-ransomware-attack-via-oracle-dbs-external-jobs/
SANS Stormcast Monday, September 22nd, 2025: Odd HTTP Reuqest; GoAnywhere MFT Bug; EDR Freeze
Help Wanted: What are these odd requests about? An odd request is hitting a number of our honeypots with a somewhat unusual HTTP request header. Please let me know if you no what the request is about. https://isc.sans.edu/forums/diary/Help+Wanted+What+are+these+odd+reuqests+about/32302/ Forta GoAnywhere MFT Vulnerability Forta s GoAnywhere MFT product suffers from a critical deserialization vulnerability. Forta released an advisory disclosing the vulnerability on Thursday. https://www.fortra.com/security/advisories/product-security/fi-2025-012 EDR Freeze A new tool, EDR Freeze, allows regular users to suspend EDR processes. https://www.zerosalarium.com/2025/09/EDR-Freeze-Puts-EDRs-Antivirus-Into-Coma.html
SANS Stormcast Friday, September 19th, 2025: Honeypot File Analysis (@sans_edu); SonicWall Breach; DeepSeek Bias; Chrome 0-day
Exploring Uploads in a Dshield Honeypot Environment This guest diary by one of our SANS.edu undergraduate interns shows how to analyze files uploaded to Cowrie https://isc.sans.edu/diary/Exploring%20Uploads%20in%20a%20Dshield%20Honeypot%20Environment%20%5BGuest%20Diary%5D/32296 Sonicwall Breach SonicWall MySonicWall accounts were breached via credential brute forcing https://www.sonicwall.com/support/knowledge-base/mysonicwall-cloud-backup-file-incident/250915160910330 DeepSeek Bias Cloudflare found significant biases in code created by the Chinese AI engine DeepSeek. Code for organizations not aligned with China s politics contained significantly more bugs https://www.washingtonpost.com/technology/2025/09/16/deepseek-ai-security/ Google Chrome 0-day Google fixed an already-exploited vulnerability in Google Chrome https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_17.html
SANS Stormcast Thursday, September 18th, 2025: DLL Hooking; Entra ID Actor Tokens; Watchguard and NVidia Patches
CTRL-Z DLL Hooking Attackers may use a simple reload trick to overwrite breakpoints left by analysts to reverse malicious binaries. https://isc.sans.edu/diary/CTRL-Z%20DLL%20Hooking/32294 Global Admin in every Entra ID tenant via Actor tokens As part of September s patch Tuesday, Microsoft patched CVE-2025-55241. The discoverer of the vulnerability, Dirk-jan Mollema has published a blog post showing how this vulnerability could have been exploited. https://dirkjanm.io/obtaining-global-admin-in-every-entra-id-tenant-with-actor-tokens/ WatchGuard Firebox iked Out of Bounds Write Vulnerability CVE-2025-9242 WatchGuard patched an out-of-bounds write vulnerability, which could allow an unauthenticated attacker to compromise the devices. https://www.watchguard.com/wgrd-psirt/advisory/wgsa-2025-00015 NVidia Triton Inference Server NVIDIA patched critical vulnerabilities in its Triton Inference Server. https://nvidia.custhelp.com/app/answers/detail/a_id/5691
SANS Stormcast Wednesday, September 17th, 2025: Phishing Resistants; More npm Attacks; ChatGPT MCP abuse
Why You Need Phishing-Resistant Authentication NOW. The recent compromise of a number of high-profile npmjs.com accounts has yet again shown how dangerous a simple phishing email can be. https://isc.sans.edu/diary/Why%20You%20Need%20Phishing%20Resistant%20Authentication%20NOW./32290 S1ngularity/nx Attackers Strike Again A second wave of attacks has hit over a hundred npm-related GitHub repositories. The updated payload implements a worm that propagates itself to other repositories. https://www.aikido.dev/blog/s1ngularity-nx-attackers-strike-again ChatGPT s Calendar Integration Can Be Exploited to Steal Emails ChatGPT s new MCP integration can be used, via prompt injection, to affect software connected to ChatGPT via MCP. https://www.linkedin.com/posts/eito-miyamura-157305121_we-got-chatgpt-to-leak-your-private-email-activity-7372306174253256704-xoX1/
SANS Stormcast Tuesday, September 16th, 2025: Apple Updates; Rust Phishing; Samsung 0-day
Apple Updates Apple released major updates for all of its operating systems. In addition to new features, these updates patch 33 different vulnerabilities. https://isc.sans.edu/diary/Apple%20Updates%20Everything%20-%20iOS%20macOS%2026%20Edition/32286 Microsoft End of Life October 14th, support for Windows 10, Exchange 2016, and Exchange 2019 will end. https://support.microsoft.com/en-us/windows/windows-10-support-ends-on-october-14-2025-2ca8b313-1946-43d3-b55c-2b95b107f281#:~:text=As%20a%20reminder%2C%20Windows%2010,one%20that%20supports%20Windows%2011. https://techcommunity.microsoft.com/blog/exchange/t-9-months-exchange-server-2016-and-exchange-server-2019-end-of-support/4366605 Phishing Targeting Rust Developers Rust developers are reporting similar phishing emails as the emails causing the major NPM compromise last week. https://github.com/rust-lang/crates.io/discussions/11889#discussion-8886064 Samsung Patches 0-Day Samsung released its monthly updates for its flagship phones fixing, among other vulnerability, an already exploited 0-day. https://security.samsungmobile.com/securityUpdate.smsb
SANS Stormcast Monday, September 15th, 2025: More Archives; Salesforce Attacks; White Cobra; BSides Augusta
Web Searches For Archives Didier observed additional file types being searched for as attackers continue to focus on archive files as they spider web pages https://isc.sans.edu/diary/Web%20Searches%20For%20Archives/32282 FBI Flash Alert: Salesforce Attacks The FBI is alerting users of Salesforce of two different threat actors targeting Salesforce. There are no new vulnerabilities disclosed, but the initial access usually takes advantage of social engineering or leaked data from the Salesdrift compromise. https://www.ic3.gov/CSA/2025/250912.pdf VSCode Cursor Extensions Malware Koe Security unmasked details about a recent malicious cursor extension campaign they call White Cobra. https://www.koi.security/blog/whitecobra-vscode-cursor-extensions-malware BSides Augusta https://bsidesaugusta.org/
SANS Stormcast Friday, September 12th, 2025: DShield SIEM Update; Another Sonicwall Warning; Website Keystroke Logging
DShield SIEM Docker Updates Guy updated the DShield SIEM which graphically summarizes what is happening inside your honeypot. https://isc.sans.edu/diary/DShield%20SIEM%20Docker%20Updates/32276 Again: Sonicwall SSL VPN Compromises The Australian Government s Signals Directorate noted an increase in compromised Sonicwall devices. https://www.cyber.gov.au/about-us/view-all-content/alerts-and-advisories/ongoing-active-exploitation-of-sonicwall-ssl-vpns-in-australia Website Keystroke Logging Many websites log every keystroke, not just data submitted in forms. https://arxiv.org/pdf/2508.19825
SANS Stormcast Thursday, September 11th, 2025: BASE64 in DNS; Google Chrome, Ivantii and Sophos Patches; Apple Memory Integrity Feature
BASE64 Over DNS The base64 character set exceeds what is allowable in DNS. However, some implementations will work even with these invalid characters. https://isc.sans.edu/diary/BASE64%20Over%20DNS/32274 Google Chrome Update Google released an update for Google Chrome, addressing two vulnerabilities. One of the vulnerabilities is rated critical and may allow code execution. https://chromereleases.googleblog.com/2025/09/stable-channel-update-for-desktop_9.html Ivanti Updates Ivanti patched a number of vulnerabilities, several of them critical, across its product portfolio. https://forums.ivanti.com/s/article/September-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gateways-and-Neurons-for-Secure-Access-Multiple-CVEs Sophos Patches Sophos resolved authentication bypass vulnerability in Sophos AP6 series wireless access point firmware (CVE-2025-10159) https://www.sophos.com/en-us/security-advisories/sophos-sa-20250909-ap6 Apple Introduces Memory Integrity Enforcement With the new hardware promoted in yesterday s event, Apple also introduced new memory integrity features based on this new hardware. https://security.apple.com/blog/memory-integrity-enforcement/
SANS Stormcast Wednesday, September 10th, 2025: Microsoft Patch Tuesday;
Microsoft Patch Tuesday As part of its September patch Tuesday, Microsoft addressed 177 different vulnerabilities, 86 of which affect Microsoft products. None of the vulnerabilities has been exploited before today. Two of the vulnerabilities were already made public. Microsoft rates 13 of the vulnerabilities are critical. https://isc.sans.edu/diary/Microsoft%20Patch%20Tuesday%20September%202025/32270 Adobe Patches Adobe released patches for nine products, including Adobe Commerce, Coldfusion, and Acrobat. https://helpx.adobe.com/security/security-bulletin.html SAP Patches SAP patched vulnerabilities across its product portfolio. Particularly interesting are a few critical vulnerabilities in Netweaver, one of which scored a perfect 10.0 CVSS score. https://onapsis.com/blog/sap-security-notes-september-2025-patch-day/
SANS Stormcast Tuesday, September 9th, 2025: Major npm compromise; HTTP Request Signature
Major npm compromise A number of high-profile npm libraries were compromised after developers fell for a phishing email. This compromise affected libraries with a total of hundreds of millions of downloads a week. https://bsky.app/profile/bad-at-computer.bsky.social/post/3lydioq5swk2y https://github.com/orgs/community/discussions/172738 https://github.com/chalk/chalk/issues/656#issuecomment-3266894253 https://www.aikido.dev/blog/npm-debug-and-chalk-packages-compromised HTTP Request Signatures It looks like some search engines and AI bots are starting to use the HTTP request signature. This should make it easier to identify bot traffic. https://isc.sans.edu/diary/HTTP%20Request%20Signatures/32266
SANS Stormcast Monday, September 8th, 2025: YARA to Debugger Offsets; SVG JavaScript Phishing; FreePBX Patches;
From YARA Offsets to Virtual Addresses Xavier explains how to convert offsets reported by YARA into offsets suitable for the use with debuggers. https://isc.sans.edu/diary/From%20YARA%20Offsets%20to%20Virtual%20Addresses/32262 Phishing via JavaScript in SVG Files Virustotal uncovered a Colombian phishing campaign that takes advantage of JavaScript in SVG files. https://blog.virustotal.com/2025/09/uncovering-colombian-malware-campaign.html FreePBX Patches FreePBX released details regarding two vulnerabilities patched last week. One of these vulnerabilities was already actively exploited. https://github.com/FreePBX/security-reporting/security/advisories/GHSA-3r47-p39v-vqqf
SANS Stormcast Friday, September 5th, 2025: Cloudflare Response to 1.1.1.1 Certificate; AI Modem Namespace Reuse; macOS Vulnerability Allowed Keychain Decryption
Unauthorized Issuance of Certificate for 1.1.1.1 Cloudflare published a blog post with more details regarding the bad 1.1.1.1 certificate that was issued by Fina. https://blog.cloudflare.com/unauthorized-issuance-of-certificates-for-1-1-1-1/ AI Model Namespace Reuse Deleted accounts on Huggingface can be taken over by other entities unrelated to the original owner. https://unit42.paloaltonetworks.com/model-namespace-reuse/ macOS vulnerability allowed Keychain and iOS app decryption without a password Excessive entitlements for the gcore binary facilitated access to key material that was sufficient to access secrets stored in Apple s keychain. https://www.helpnetsecurity.com/2025/09/04/macos-gcore-vulnerability-cve-2025-24204/
SANS Stormcast Thursday, September 4th, 2025: Dassault DELMIA Apriso Exploit Attempts; Android Updates; 1.1.1.1 Certificate Issued
Exploit Attempts for Dassault DELMIA Apriso. CVE-2025-5086 Our honeypots detected attacks against the manufacturing management system DELMIA Apriso. The deserialization vulnerability was patched in June and is one of a few critical vulnerabilities patched in recent months. https://isc.sans.edu/diary/Exploit%20Attempts%20for%20Dassault%20DELMIA%20Apriso.%20CVE-2025-5086/32256 Android Bulletin Google released its September update, fixing two already-exploited privilege escalation flaws and some remote code execution issues. https://source.android.com/docs/security/bulletin/2025-09-01 Mis-issued Certificates for SAN iPAddress:1.1.1.1 by Fina RDC 2020 Certificate authority Fina RDC issues a certificate for Cloudflare s IP address 1.1.1.1 https://groups.google.com/a/mozilla.org/g/dev-security-policy/c/SgwC1QsEpvc