Claim OwnershipSANS Stormcast: Daily Cyber Security News
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© Copyright Johannes Ullrich
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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 minutes 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 Storm Center. You may submit questions and comments via our contact form at https://isc.sans.edu/contact.html .
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Apple Patches Everything, Again Apple released a minor OS upgrade across its lineup, fixing a number of security vulnerabilities.https://isc.sans.edu/diary/Apple%20Patches%20Everything%2C%20Again/32448 Remote Access Tools Used to Compromise Trucking and Logistics Attackers infect trucking and logistics companies with regular remote management tools to inject malware into other companies or learn about high-value loads in order to steal them.https://www.proofpoint.com/us/blog/threat-insight/remote-access-real-cargo-cybercriminals-targeting-trucking-and-logistics Google Android Patch Day Google released its usual monthly Android updates this weekhttps://source.android.com/docs/security/bulletin/2025-11-01
XWiki SolrSearch Exploit Attempts CVE-2025-24893 We have detected a number of exploit attempts against XWiki taking advantage of a vulnerability that was added to the KEV list on Friday.https://isc.sans.edu/diary/XWiki%20SolrSearch%20Exploit%20Attempts%20%28CVE-2025-24893%29%20with%20link%20to%20Chicago%20Gangs%20Rappers/32444 AMD Zen 5 Random Number Generator Bug The RDSEED function for AMD s Zen 5 processors does return 0 more often than it should.https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7055.html SleepyDuck malware invades Cursor through Open VSX Yet another Open VSX extension stealing crypto credentialshttps://secureannex.com/blog/sleepyduck-malware/
Scans for WSUS: Port 8530/8531 TCP, CVE-2025-59287 We did observe an increase in scans for TCP ports 8530 and 8531. These ports are associated with WSUS and the scans are likely looking for servers vulnerable to CVE-2025-59287https://isc.sans.edu/diary/Scans%20for%20Port%208530%208531%20%28TCP%29.%20Likely%20related%20to%20WSUS%20Vulnerability%20CVE-2025-59287/32440 BADCANDY Webshell Implant Deployed via The Australian Signals Directorate warns that they still see Cisco IOS XE devices not patches for CVE-2023-20198. A threat actor is now using this vulnerability to deploy the BADCANDY implant for persistent accesshttps://www.cyber.gov.au/about-us/view-all-content/alerts-and-advisories/badcandy Improvements to Open VSX Security In reference to the Glassworm incident, OpenVSX published a blog post outlining some of the security improvements they will make to prevent a repeat of this incident.https://blogs.eclipse.org/post/mika l-barbero/open-vsx-security-update-october-2025
X-Request-Purpose: Identifying "research" and bug bounty related scans? Our honeypots captured a few requests with bug bounty specific headers. These headers are meant to make it easier to identify requests related to bug bounty, and they are supposed to identify the researcher conducting the scanshttps://isc.sans.edu/diary/X-Request-Purpose%3A%20Identifying%20%22research%22%20and%20bug%20bounty%20related%20scans%3F/32436 Proton Breach Observatory Proton opened up its breach observatory. This website will collect information about breaches affecting companies that have not yet made the breach public.https://proton.me/blog/introducing-breach-observatory Microsoft Exchange Server Security Best Practices A new document published by a collaboration of national cyber security agencies summarizes steps that should be taken to harden Exchange Server.https://www.nsa.gov/Portals/75/documents/resources/cybersecurity-professionals/CSI_Microsoft_Exchange_Server_Security_Best_Practices.pdf?ver=9mpKKyUrwfpb9b9r4drVMg%3d%3d MOVEit Vulnerability Progress published an advisory for its file transfer program MOVEIt . This software has had heavily exploited vulnerabilities in the past.https://community.progress.com/s/article/MOVEit-Transfer-Vulnerability-CVE-2025-10932-October-29-2025
How to Collect Memory-Only Filesystems on Linux Systems Getting forensically sound copies of memory-only file systems on Linux can be tricky, as tools like dd do not work.https://isc.sans.edu/diary/How%20to%20collect%20memory-only%20filesystems%20on%20Linux%20systems/32432 Microsoft Azure Front Door Outage Today, Microsoft s Azure Front Door service failed, leading to users not being able to authenticate to various Azure-related services.https://azure.status.microsoft/en-us/status Docker-Compose Vulnerability A vulnerability in docker-compose may be used to trick users into creating files outside the docker-compose directoryhttps://github.com/docker/compose/security/advisories/GHSA-gv8h-7v7w-r22q
Phishing with Invisible Characters in the Subject Line Phishing emails use invisible UTF-8 encoded characters to break up keywords used to detect phishing (or spam). This is aided by mail clients not rendering some characters that should be rendered.https://isc.sans.edu/diary/A%20phishing%20with%20invisible%20characters%20in%20the%20subject%20line/32428 Apache Tomcat PUT Directory Traversal Apache released an update to Tomcat fixing a directory traversal vulnerability in how the PUT method is used. Exploits could upload arbitrary files, leading to remote code execution.https://lists.apache.org/thread/n05kjcwyj1s45ovs8ll1qrrojhfb1tog BIND9 DNS Spoofing Vulnerability A PoC exploit is now available for the recently patched BIND9 spoofing vulnerabilityhttps://gist.github.com/N3mes1s/f76b4a606308937b0806a5256bc1f918
Bytes over DNS Didiear investigated which bytes may be transmitted as part of a hostname in DNS packets, depending on the client resolver and recursive resolver constraintshttps://isc.sans.edu/diary/Bytes%20over%20DNS/32420 Unifi Access Vulnerability Unifi fixed a critical vulnerability in it s Access producthttps://community.ui.com/releases/Security-Advisory-Bulletin-056-056/ce97352d-91cd-40a7-a2f4-2c73b3b30191 OpenAI Atlas Omnibox Prompt Injection OpenAI s latest browser can be jailbroken by inserting prompts in URLshttps://neuraltrust.ai/blog/openai-atlas-omnibox-prompt-injection
Bilingual Phishing for Cloud Credentials Guy observed identical phishing messages in French and English attempting to phish cloud credentialshttps://isc.sans.edu/diary/Phishing%20Cloud%20Account%20for%20Information/32416 Kaitai Struct WebIDE The binary file analysis tool Kaitai Struct is now available in a web only versionhttps://isc.sans.edu/diary/Kaitai%20Struct%20WebIDE/32422 WSUS Emergency Update Microsoft released an emergency patch for WSUS to fix a currently exploited critical vulnerabilityhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-59287 Network Security Devices Endanger Orgs with 90s-era Flaws Attackers increasingly use simple-to-exploit network security device vulnerabilities to compromise organizations.https://www.csoonline.com/article/4074945/network-security-devices-endanger-orgs-with-90s-era-flaws.html
Infostealer Targeting Android Devices This infostealer, written in Python, specifically targets Android phones. It takes advantage of Termux to gain access to data and exfiltrates it via Telegram.https://isc.sans.edu/diary/Infostealer%20Targeting%20Android%20Devices/32414 Attackers exploit recently patched Adobe Commerce Vulnerability CVE-2025-54236 Six weeks after Adobe's emergency patch, SessionReaper (CVE-2025-54236) has entered active exploitation. E-Commerce security company SanSec has detected multiple exploit attempts.https://sansec.io/research/sessionreaper-exploitation Patch for BIND and unbound nameservers CVE-2025-40780 The Internet Systems Consortium (ISC.org), as well as the Unbound project, patched a flaw that may allow for DNS spoofing due to a weak random number generator.https://kb.isc.org/docs/cve-2025-40780 WSUS Exploit Released CVE-2025-59287 Hawktrace released a walk through showing how to exploit the recently patched WSUS vulnerabilityhttps://hawktrace.com/blog/CVE-2025-59287
webctrl.cgi/Blue Angel Software Suite Exploit Attempts. Maybe CVE-2025-34033 Variant? Our honeypots detected attacks that appear to exploit CVE-2025-34033 or a similar vulnerability in the Blue Angle Software Suite.https://isc.sans.edu/diary/webctrlcgiBlue+Angel+Software+Suite+Exploit+Attempts+Maybe+CVE202534033+Variant/32410 Oracle Critical Patch Update Oracle released its quarterly critical patch update. The update includes patches for 374 vulnerabilities across all of Oracle s products. There are nine more patches for Oracle s e-Business Suite.https://www.oracle.com/security-alerts/cpuoct2025.html#AppendixEBS Rust TAR Library Vulnerability A vulnerability in the popular, but no longer maintained, async-tar vulnerability could lead to arbitrary code executionhttps://edera.dev/stories/tarmageddon
What time is it? Accuracy of pool.ntp.org. How accurate and reliable is pool.ntp.org? Turns out it is very good!https://isc.sans.edu/diary/What%20time%20is%20it%3F%20Accuracy%20of%20pool.ntp.org./32390 Xubuntu Compromise The Xubuntu website was compromised last weekend and served malwarehttps://floss.social/@bluesabre/115401767635718361 Squid Proxy Vulnerability The Squid team fixed an information disclosure vulnerabilty that may leak authentication credentials.https://github.com/squid-cache/squid/security/advisories/GHSA-c8cc-phh7-xmxr Lanscope Endpoint Manager Vulnerablityhttps://jvn.jp/en/jp/JVN86318557/index.html
Using Syscall() for Obfuscation/Fileless Activity Fileless malware written in Python can uses syscall() to create file descriptors in memory, evading signatures.https://isc.sans.edu/diary/Using%20Syscall%28%29%20for%20Obfuscation%20Fileless%20Activity/32384 AWS Outages AWS has had issues most of the day on Monday, affecting numerous services.https://health.aws.amazon.com/health/status Time Server Hack China reports a compromise of its time standard servers. https://thehackernews.com/2025/10/mss-claims-nsa-used-42-cyber-tools-in.html
TikTok Videos Promoting Malware InstallationTikTok Videos Promoting Malware Installation Tiktok videos advertising ways to obtain software like Photoshop for free will instead trick users into downloading https://isc.sans.edu/diary/TikTok%20Videos%20Promoting%20Malware%20Installation/32380 Google Ads Advertise Malware Targeting MacOS Developers Hunt.io discovered Google ads that pretend to advertise tools like Homebrew and password managers to spread malwarehttps://hunt.io/blog/macos-odyssey-amos-malware-campaign Satellite Transmissions are often unencrypted A large amount of satellite traffic is unencrypted and easily accessible to eavesdroppinghttps://satcom.sysnet.ucsd.edu
New DShield Support Slack Workspace Due to an error on Salesforce s side, we had to create a new Slack Workspace for DShield support.https://isc.sans.edu/diary/New%20DShield%20Support%20Slack/32376 Attackers Exploiting Recently Patched Cisco SNMP Flaw (CVE-2025-20352) Trend Micro published details explaining how attackers took advantage of a recently patched Cisco SNMP Vulnerabilityhttps://www.trendmicro.com/en_us/research/25/j/operation-zero-disco-cisco-snmp-vulnerability-exploit.htmlhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-snmp-x4LPhte Framework BIOS Backdoor The mm command impleneted in Framework BIOS shells can be used to compromise a device pre-boot.https://eclypsium.com/blog/bombshell-the-signed-backdoor-hiding-in-plain-sight-on-framework-devices/ SANS.edu Research: Mark Stephens, Validating the Effectiveness of MITRE Engage and Active Defensehttps://www.sans.edu/cyber-research/validating-effectiveness-mitre-engage-active-defense/
Clipboard Image Stealer Xavier presents an infostealer in Python that steals images from the clipboard.https://isc.sans.edu/diary/Clipboard%20Pictures%20Exfiltration%20in%20Python%20Infostealer/32372 F5 Compromise F5 announced a wide-ranging compromise today. Source code and information about unpatched vulnerabilities were stolen.https://my.f5.com/manage/s/article/K000157005 https://my.f5.com/manage/s/article/K000156572 https://my.f5.com/manage/s/article/K000154696 Adobe Updates Adobe updated 12 different products yesterday. https://helpx.adobe.com/security.html SAP Patchday Among the critical vulnerabilities patched in SAP s products are two deserialization vulnerabilities with a CVSS score of 10.0https://support.sap.com/en/my-support/knowledge-base/security-notes-news/october-2025.htmlhttps://onapsis.com/blog/sap-security-patch-day-october-2025/
Microsoft Patch Tuesday Microsoft not only released new patches, but also the last patches for Windows 10, Office 2016, Office 2019, Exchange 2016 and Exchange 2019.https://isc.sans.edu/diary/Microsoft%20Patch%20Tuesday%20October%202025/32368 Ivanti Advisory Ivanti released an advisory with some mitigation steps users can take until the recently made public vulnerablities are patched.https://forums.ivanti.com/s/article/Security-Advisory-Ivanti-Endpoint-Manager-EPM-October-2025?language=en_US Fortinet Patcheshttps://fortiguard.fortinet.com/psirt/FG-IR-25-010https://fortiguard.fortinet.com/psirt/FG-IR-24-361
Scans for ESAFENET CDG V5 We do see some increase in scans for the Chinese secure document management system, ESAFENET.https://isc.sans.edu/diary/Heads%20Up%3A%20Scans%20for%20ESAFENET%20CDG%20V5%20/32364 Investigating targeted payroll pirate attacks affecting US universities Microsoft wrote about how payroll pirates redirect employee paychecks via phishing.https://www.microsoft.com/en-us/security/blog/2025/10/09/investigating-targeted-payroll-pirate-attacks-affecting-us-universities/ Attacks against Edge via IE Mode Microsoft Edge offers an IE legacy mode to support websites created for Internet Explorer. The old JavaScript engine, which is part of this mode, has been abused in recent attacks, and Microsoft will make it more difficult to enable IE Mode to counter these attacks.https://microsoftedge.github.io/edgevr/posts/Changes-to-Internet-Explorer-Mode-in-Microsoft-Edge/
New Oracle E-Business Suite Patches Oracle released one more patch for the e-business suite. Oracle does not state if it is already exploited, but the timing of the patch suggests that it should be expedited.https://www.oracle.com/security-alerts/alert-cve-2025-61884.html Widespread Sonicwall SSLVPN Compromise Huntress Labs observed the widespread compromise of the Sonicwall SSLVPN appliance.https://www.huntress.com/blog/sonicwall-sslvpn-compromise Active Exploitation of Gladinet CentreStack and Triofox Local File Inclusion Flaw (CVE-2025-11371) An unpatched vulnerability in the secure file sharing solutions Gladinet CentreStack and TrioFox is being exploited.https://www.huntress.com/blog/gladinet-centrestack-triofox-local-file-inclusion-flaw Two 7-Zip Vulnerabilities CVE-2025-11002, CVE-2025-11001 7-Zip patched two vulnerabilities that may lead to arbitrary code executionhttps://www.zerodayinitiative.com/advisories/ZDI-25-949/https://www.zerodayinitiative.com/advisories/ZDI-25-950/
Building Better Defenses: RedTail Observations Defending against attacks like RedTail is more then blocking IoCs, but instead one must focus on the techniques and tactics attackers use.https://isc.sans.edu/diary/Guest+Diary+Building+Better+Defenses+RedTail+Observations+from+a+Honeypot/32312 Sonicwall: It wasn t the user s fault Sonicwall admits to a breach resulting in the loss of user configurations stored in its cloud servicehttps://www.sonicwall.com/support/knowledge-base/mysonicwall-cloud-backup-file-incident/250915160910330 Crowdstrike has Issues Crowdstrike fixes two vulnerabilities in the Windows version of its Falcon sensor.https://www.crowdstrike.com/en-us/security-advisories/issues-affecting-crowdstrike-falcon-sensor-for-windows/ Interrogators: Attack Surface Mapping in an Agentic World A SANS.edu master s degree student research paper by Michael Samsonhttps://isc.sans.edu/researchpapers/pdfs/michael_samson.pdf keywords: ai; agentic; attack surface; crowdstrike; sonicwall; ivanti; zero day; initiative; redline
Polymorphic Python Malware Xavier discovered self-modifying Python code on Virustotal. The remote access tool takes advantage of the inspect module to modify code on the fly.https://isc.sans.edu/diary/Polymorphic%20Python%20Malware/32354 SSH ProxyCommand Vulnerability A user cloning a git repository may be tricked into executing arbitrary code via the SSH proxycommand option.https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984 Framelink Figma MCP Server CVE-2025-53967 Framelink Figma s MCP server suffers from a remote code execution vulnerability.
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