SANS Internet Stormcenter Daily Cyber Security Podcast (Stormcast)

Copyright: © (c) SANS Institute 2024 This work is licensed under a Creative Commons License - Attribution-NonCommercial-ShareAlike - https://creativecommons.org/licenses/by-nc-sa/4.0/

Latest Episodes:

SANS ISC Stormcast, Jan 27, 2025: Access Brokers; Llama Stack Vuln; ESXi SSH Tunnels; Zyxel Boot Loops; Subary StarLeak Jan 27, 2025

Show notes

Guest Diary: How Access Brokers Maintain Persistence
Explore how cybercriminals utilize access brokers to persist within networks and the impact this has on organizational security.
https://isc.sans.edu/forums/diary/Guest+Diary+How+Access+Brokers+Maintain+Persistence/31600/
Critical Vulnerability in Meta's Llama Stack (CVE-2024-50050)
A deep dive into CVE-2024-50050, a critical vulnerability affecting Meta's Llama Stack, with exploitation details and mitigation strategies.
https://www.oligo.security/blog/cve-2024-50050-critical-vulnerability-in-meta-llama-llama-stack
ESXi Ransomware and SSH Tunneling Defense Strategies
Learn how to fortify your infrastructure against ransomware targeting ESXi environments, focusing on SSH tunneling and proactive measures.
https://www.sygnia.co/blog/esxi-ransomware-ssh-tunneling-defense-strategies/
Zyxel USG FLEX/ATP Series Application Signature Recovery Steps
Addressing issues with Zyxel s USG FLEX/ATP Series application signatures as of January 24, 2025, with a detailed recovery guide.
https://support.zyxel.eu/hc/en-us/articles/24159250192658-USG-FLEX-ATP-Series-Recovery-Steps-for-Application-Signature-Issue-on-January-24th-2025
Subaru Starlink Vulnerability Exposed Cars to Remote Hacking
Discussing how a vulnerability in Subaru s Starlink system left vehicles susceptible to remote exploitation and the steps taken to resolve it.
https://www.securityweek.com/subaru-starlink-vulnerability-exposed-cars-to-remote-hacking/

SANS ISC Stormcast, Jan 24, 2025: XSS in Email, SonicWall Exploited; Cisco Vulnerablities; AI and SOAR (@sans_edu research paper by Anthony Russo) Jan 24, 2025

Show notes

In today's episode, learn how an attacker attempted to exploit webmail XSS vulnerablities against us. Sonicwall released a critical patch fixing an already exploited vulnerability in its SMA 1000 appliance. Cisco fixed vulnerabilities in ClamAV and its Meeting Manager REST API. Learn from SANS.edu student Anthony Russo how to take advantage of AI for SOAR.
XSS Attempts via E-Mail
https://isc.sans.edu/diary/XSS%20Attempts%20via%20E-Mail/31620
An analysis of a recent surge in email-based XSS attack attempts targeting users and organizations. Learn the implications and mitigation techniques.
SonicWall PSIRT Advisory: CVE-2025-23006
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2025-0002 CVE-2025-23006
Details of a critical vulnerability in SonicWall appliances (SNWLID-2025-0002) and what you need to do to secure your systems.
Cisco ClamAV Advisory: OLE2 Parsing Vulnerability
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-clamav-ole2-H549rphA
A DoS vulnerability in the popular open source anti virus engine ClamAV
Cisco CMM Privilege Escalation Vulnerability
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cmm-privesc-uy2Vf8pc
A patch of a privilege escalation flaw in Cisco s CMM module.

SANS ISC Stormcast, Jan 23, 2025: PFSync Protocol; Oracle CPU; Korean VPN Supply Chain Attack; Ivanti Guidance Jan 22, 2025

Show notes

In today's episode, we start by talking about the PFSYNC protocol used to synchronize firewall states to support failover. Oracle released it's quarterly critical patch update. ESET is reporting about a critical VPN supply chain attack and CISA released guidance for victims of recent Ivanti related attacks.
Catching CARP: Fishing for Firewall States in PFSync Traffic
https://isc.sans.edu/diary/Catching%20CARP%3A%20Fishing%20for%20Firewall%20Stat%20es%20in%20PFSync%20Traffic/31616)**
Discover how attackers exploit PFSync traffic to manipulate firewall states. This deep dive explores vulnerabilities and mitigation strategies in network defense.
Oracle Critical Patch Update January 2025
https://www.oracle.com/security-alerts/cpujan2025.html)**
Oracle's January 2025 patch release addresses numerous critical vulnerabilities across their product suite. Learn about key updates and how to secure your systems.
PlushDaemon: Compromising the Supply Chain of a Korean VPN Service
https://www.welivesecurity.com/en/eset-research/plushdaemon-compromises-supply-chain-korean-vpn-service/
ESET Research uncovers PlushDaemon, a sophisticated supply chain attack targeting a Korean VPN provider. Understand the implications for supply chain security.
CISA Cybersecurity Advisory: AA25-022A
https://www.cisa.gov/news-events/cybersecurity-advisories/aa25-022a
The latest advisory highlights active threats and mitigation strategies for critical infrastructure. Stay ahead with CISA s guidance on emerging cyber risks.

SANS ISC Stormcast, Jan 22, 2025: Geolocation via Starlink and Cloudflare; AI Prompt Risks; Homebrew Phishing Jan 22, 2025

Show notes

This episodes covers how Starlink users can be geolocated and how Cloudflare may help deanonymize users. The increased use of AI helpers leads to leaking data via careless prompts.
Geolocation and Starlink
https://isc.sans.edu/diary/Geolocation%20and%20Starlink/31612
Discover the potential geolocation risks associated with Starlink and how they might be exploited. This diary entry dives into new concerns for satellite internet users.
Deanonymizing Users via Cloudflare
https://gist.github.com/hackermondev/45a3cdfa52246f1d1201c1e8cdef6117
Deanonymizing users by identifying which cloudflare server cashed particular content
Sage's AI Assistant and Customer Data Concerns
https://www.theregister.com/2025/01/20/sage_copilot_data_issue/
Examine how a Sage AI tool inadvertently exposed sensitive customer data, raising questions about AI governance and trust in business applications.
The Threat of Sensitive Data in Generative AI Prompts
https://www.darkreading.com/threat-intelligence/employees-sensitive-data-genai-prompts
Analyze how employees careless prompts to generative AI tools can lead to sensitive data breaches and the importance of awareness training.
Homebrew Phishing
https://x.com/ryanchenkie/status/1880730173634699393

SANS ISC Stormcast, Jan 21, 2025: Downloading Partial ZIP files; Remote Tools Used in Attakcs; Azure DevOps SSRF Jan 21, 2025

Show notes

In this episode, we talk about downloading and analyzing partial ZIP files, how legitimate remote access tools are used in recent compromises and how a research found an SSRF vulnerability in Azure DevOps
Partial ZIP File Downloads
A closer look at how attackers are leveraging partial ZIP file downloads to bypass file verification systems and plant malicious content.
https://isc.sans.edu/diary/Partial%20ZIP%20File%20Downloads/31608
Ukrainian CERT Advisory on AnyDesk Threat
The Ukrainian CERT provides detailed guidance on identifying and mitigating recent cyber threats exploiting AnyDesk for unauthorized access.
https://cert.gov.ua/article/6282069
Finding SSRFs in Azure DevOps
An in-depth analysis of how server-side request forgery (SSRF) vulnerabilities are discovered and exploited in Azure DevOps pipelines.
https://binarysecurity.no/posts/2025/01/finding-ssrfs-in-devops

SANS ISC Stormcast, Jan 20, 2025: Honeypots for Offense; SimpleHelp and UEFI Secure Boot Vulnerabilities Jan 20, 2025

Show notes

In this episode, we cover how to use honeypot data to keep your offensive infrastructure alive longer, three critical vulnerabilities in SimpleHelp that must be patched now, and an interesting vulnerability affecting many systems allowing UEFI Secure Boot bypass.
Leveraging Honeypot Data for Offensive Security Operations [Guest Diary] A recent guest diary on the SANS Internet Storm Center discusses how offensive security professionals can utilize honeypot data to enhance their operations. The diary highlights the detection of scans from multiple IP addresses, emphasizing the importance of monitoring non-standard user-agent strings in web requests.
https://isc.sans.edu/diary/Leveraging%20Honeypot%20Data%20for%20Offensive%20Security%20Operations%20%5BGuest%20Diary%5D/31596
Security Vulnerabilities in SimpleHelp 5.5.7 and Earlier SimpleHelp has released version 5.5.8 to address critical security vulnerabilities present in versions 5.5.7 and earlier. Users are strongly advised to upgrade to the latest version to prevent potential exploits. Detailed information and upgrade instructions are available on SimpleHelp's official website.
https://simple-help.com/kb---security-vulnerabilities-01-2025#send-us-your-questions
Under the Cloak of UEFI Secure Boot: Introducing CVE-2024-7344 ESET researchers have identified a new vulnerability, CVE-2024-7344, that allows attackers to bypass UEFI Secure Boot on most UEFI-based systems. This flaw enables the execution of untrusted code during system boot, potentially leading to the deployment of malicious UEFI bootkits. Affected users should apply available patches to mitigate this risk.
https://www.welivesecurity.com/en/eset-research/under-cloak-uefi-secure-boot-introducing-cve-2024-7344/

SANS ISC Stormcast, Jan 17, 2025: Analyzing Complex Datasets, Citrix Update Issues, Ivanti's Security Advisory, and the Future of Passkeys (@sans_edu) Jan 17, 2025

Show notes

In this episode, we explore the efficient storage of honeypot logs in databases, issues with Citrix's Session Recording Agent and Windows Update. Ivanti is having another interesting security event and our SANS.edu graduate student Rich Green talks about his research on Passkeys.
Extracting Practical Observations from Impractical Datasets: A SANS Internet Storm Center diary entry discusses strategies for analyzing complex datasets to derive actionable insights.
https://isc.sans.edu/diary/Extracting%20Practical%20Observations%20from%20Impractical%20Datasets/31582
Citrix Session Recording Agent Update Issue: Citrix reports that Microsoft's January security update fails or reverts on machines with the 2411 Session Recording Agent installed, providing guidance on addressing this issue.
https://support.citrix.com/s/article/CTX692505-microsofts-january-security-update-failsreverts-on-a-machine-with-2411-session-recording-agent?language=en_US
Ivanti Endpoint Manager Security Advisory: Ivanti releases a security advisory for Endpoint Manager versions 2024 and 2022 SU6, detailing vulnerabilities and recommended actions.
https://forums.ivanti.com/s/article/Security-Advisory-EPM-January-2025-for-EPM-2024-and-EPM-2022-SU6?language=en_US
Revolutionizing Enterprise Security: The Exciting Future of Passkeys Beyond Passwords: A SANS.edu research paper explores the shift from traditional passwords to passkeys, highlighting the benefits and challenges of adopting passwordless authentication methods.
https://www.sans.edu/cyber-research/revolutionizing-enterprise-security-exciting-future-passkeys-beyond-passwords/

SANS ISC Stormcast, Jan 16, 2025: Critical Vulnerabilities and Cybersecurity Updates You Need to Know Jan 16, 2025

Show notes

Today's episode covers an odd 12 year old Netgear vulnerability that only received a proper CVE number last year. Learn about how to properly identify OpenID connect users and avoid domain name resue. Good old rsync turns out to be in need of patching and Fortinet: Not sure if it needs patching. Probably it does. Go ahead and patch it.
The Curious Case of a 12-Year-Old Netgear Router Vulnerability
Outdated Netgear routers remain a security risk, with attackers actively exploiting a 2013 vulnerability to deploy crypto miners. Learn how to protect your network by updating or replacing legacy hardware.
URL: https://isc.sans.edu/diary/The%20Curious%20Case%20of%20a%2012-Year-Old%20Netgear%20Router%20Vulnerability/31592
Millions at Risk Due to Google s OAuth Flaw
A flaw in Google s OAuth implementation enables attackers to exploit defunct domain accounts, exposing sensitive data. Tips on implementing MFA and domain monitoring to reduce risks.
URL: https://trufflesecurity.com/blog/millions-at-risk-due-to-google-s-oauth-flaw
Rsync 3.4.0 Security Release
The latest rsync update fixes critical vulnerabilities, including buffer overflows and symbolic link issues. Upgrade immediately to protect your file synchronization processes.
URL: https://download.samba.org/pub/rsync/NEWS#3.4.0
Fortinet PSIRT Advisories: Stay Secure
Fortinet's latest advisories address vulnerabilities in FortiOS, FortiProxy, and more. Review and apply patches promptly to secure your perimeter defenses.
URL: https://www.fortiguard.com/psirt

SANS ISC Stormcast, Jan 14 2025: Microsoft Patch Tuesday, FortiOS and FortiProxy Patches; Paessler PRTG Patches Jan 15, 2025

Show notes

Today, Microsoft Patch Tuesday headlines our news with Microsoft patching 209 vulnerabilities, some
of which have already been exploited. Fortinet suspects a so far unpatched Node.js authentication
bypass to be behind some recent exploits of FortiOS and FortiProxy devices.
Microsoft January 2025 Patch Tuesday
This month's Microsoft patch update addresses a total of 209 vulnerabilities, including 12 classified as critical. Among these, 3 vulnerabilities have been actively exploited in the wild, and 5 have been disclosed prior to the patch release, marking them as zero-days.
https://isc.sans.edu/diary/rss/31590
Fortinet Security Advisory FG-IR-24-535 CVE-2024-55591
An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS and FortiProxy may allow a remote attacker to gain super-admin privileges via crafted requests to Node.js websocket module.
https://fortiguard.fortinet.com/psirt/FG-IR-24-535
PRTG Network Monitor Update:
Update for an already exploited XSS vulnerability in Paesler PRTG Network Monitor CVE-2024-12833
https://www.paessler.com/prtg/history/stable

SANS ISC Stormcast, Jan 14, 2025: Brute-Forcing Hikvision Devices, macOS SIP Bypass, Linux Rootkits, Aviatrix Exploits, and AWS Ransomware Tactics Jan 13, 2025

Show notes

Episode Summary:
This episode covers brute-force attacks on the password reset functionality of Hikvision devices, a macOS SIP bypass vulnerability, Linux rootkit malware, and a novel ransomware campaign targeting AWS S3 buckets.
Topics Covered:
Hikvision Password Reset Brute Forcing
URL: https://isc.sans.edu/diary/Hikvision%20Password%20Reset%20Brute%20Forcing/31586
Hikvision devices are being targeted using old brute-force attacks exploiting predictable password reset codes.
Analyzing CVE-2024-44243: A macOS System Integrity Protection Bypass
URL: https://www.microsoft.com/en-us/security/blog/2025/01/13/analyzing-cve-2024-44243-a-macos-system-integrity-protection-bypass-through-kernel-extensions/
Microsoft details a macOS vulnerability allowing attackers to bypass SIP using kernel extensions.
Rootkit Malware Controls Linux Systems Remotely
URL: https://cybersecuritynews.com/rootkit-malware-controls-linux-systems-remotely/
A sophisticated rootkit targeting Linux systems uses zero-day vulnerabilities for remote control.
Abusing AWS Native Services: Ransomware Encrypting S3 Buckets with SSE-C
URL: https://www.halcyon.ai/blog/abusing-aws-native-services-ransomware-encrypting-s3-buckets-with-sse-c
Attackers are using AWS s SSE-C encryption to lock S3 buckets during ransomware campaigns. We cover how the attack works and how to protect your AWS environment.

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