SANS Stormcast Friday, May 16th: Increase in Sonicwall Scans; RVTools Compromised?; RountPress (#)
SANS Internet Storm Center's Daily Network Security News Podcast
Release Date: 05/15/2025
SANS Stormcast Friday, June 6th, 2025: Fake Zoom Clients; Python tarfile vulnerability; HPE Insight Remote Support Patch (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Friday, June 6th, 2025: Fake Zoom Clients; Python tarfile vulnerability; HPE Insight Remote Support Patch Be Careful With Fake Zoom Client Downloads Miscreants are tricking victims into downloading fake Zoom clients (and likely other meeting software) by first sending them fake meeting invites that direct victims to a page that offers malware for download as an “update” to the Zoom client. https://isc.sans.edu/diary/Be%20Careful%20With%20Fake%20Zoom%20Client%20Downloads/32014 Python tarfile Vulnerability Recently, the Python tarfile module introduced a “filter” option to...
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SANS Stormcast Thursday, June 5th, 2025: Phishing Comment Trick; AWS default logging mode change; Cisco Backdoor Fixed; Infoblox Vulnerability Details Released (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Thursday, June 5th, 2025: Phishing Comment Trick; AWS default logging mode change; Cisco Backdoor Fixed; Infoblox Vulnerability Details Released Phishing e-mail that hides malicious links from Outlook users Jan found a phishing email that hides the malicious link from Outlook users. The email uses specific HTML comment clauses Outlook interprets to render or not render specific parts of the email’s HTML code. Jan suggests that the phishing email is intented to not expose users of...
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SANS Stormcast Wednesday, June 4th, 2025: vBulletin Exploited; Chrome 0-Day Patch; Roundcube RCE Patch; Multiple HP StoreOnce Vulns Patched (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Wednesday, June 4th, 2025: vBulletin Exploited; Chrome 0-Day Patch; Roundcube RCE Patch; Multiple HP StoreOnce Vulns Patched vBulletin Exploits CVE-2025-48827, CVE-2025-48828 We do see exploit attempts for the vBulletin flaw disclosed about a week ago. The flaw is only exploitable if vBulltin is run on PHP 8.1, and was patched over a year ago. However, vBulltin never disclosed the type of vulnerability that was patched. https://isc.sans.edu/diary/vBulletin%20Exploits%20%28CVE-2025-48827%2C%20CVE-2025-48828%29/32006 Google Chrome 0-Day Patched Google released a security update...
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SANS Stormcast Tuesday, June 3rd, 2025: Windows SSH C2; Google Removes CAs from trusted list; MSFT issues Emergency Patch to fix Crash issue; Qualcom Adreno GPU 0-day (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Tuesday, June 3rd, 2025: Windows SSH C2; Google Removes CAs from trusted list; MSFT issues Emergency Patch to fix Crash issue; Qualcom Adreno GPU 0-day Simple SSH Backdoor Xavier came across a simple SSH backdoor taking advantage of the ssh client preinstalled on recent Windows systems. The backdoor is implemented via an SSH configuration file that instructs the SSH client to connect to a remote system and forward a shell on a random port. This will make the shell accessible to anybody able to connect to the C2 host. https://isc.sans.edu/diary/Simple%20SSH%20Backdoor/32000...
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SANS Stormcast Monday, May 2nd, 2025: PNG with RAT; Cisco IOS XE WLC Exploit; vBulletin Exploit (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Monday, May 2nd, 2025: PNG with RAT; Cisco IOS XE WLC Exploit; vBulletin Exploit A PNG Image With an Embedded Gift Xavier shows how Python code attached to a PNG image can be used to implement a command and control channel or a complete remote admin kit. https://isc.sans.edu/diary/A+PNG+Image+With+an+Embedded+Gift/31998 Cisco IOS XE WLC Arbitrary File Upload Vulnerability (CVE-2025-20188) Analysis Horizon3 analyzed a recently patched flaw in Cisco Wireless Controllers. This arbitrary file upload flaw can easily be used to execute arbitrary code....
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SANS Stormcast Friday, May 30th 2025: Alternate Data Streams; Connectwise Breach; Google Calendar C2; (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Friday, May 30th 2025: Alternate Data Streams; Connectwise Breach; Google Calendar C2; Alternate Data Streams: Adversary Defense Evasion and Detection Good Primer of alternate data streams and how they are abused, as well as how to detect and defend against ADS abuse. https://isc.sans.edu/diary/Alternate%20Data%20Streams%20%3F%20Adversary%20Defense%20Evasion%20and%20Detection%20%5BGuest%20Diary%5D/31990 Connectwise Breach Affects ScreenConnect Customers Connectwise’s ScreenConnect solution was compromised, leading to attacks against a small number of customers. This is yet...
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SANS Stormcast Thursday May 29th 2025: LLM Assisted Analysis; MSP Ransomware; Everetz Vulnerability (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Thursday May 29th 2025: LLM Assisted Analysis; MSP Ransomware; Everetz Vulnerability Exploring a Use Case of Artificial Intelligence Assistance with Understanding an Attack Jennifer Wilson took a “weird string” found in a recent honeypot sample and worked with ChatGPT to figure out what it is all about. https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Exploring%20a%20Use%20Case%20of%20Artificial%20Intelligence%20Assistance%20with%20Understanding%20an%20Attack/31980 Ransomware Deployed via SimpleHelp Vulnerabilities Ransomware actors are using vulnerabilities in SimpleHelp to...
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SANS Stormcast Wednesday May 28th 2025: Securing authorized_keys; ADAuditPlus SQL Injection; Dero Miner vs Docker API (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Wednesday May 28th 2025: Securing authorized_keys; ADAuditPlus SQL Injection; Dero Miner vs Docker API SSH authorized_keys File One of the most common techniques used by many bots is to add rogue keys to the authorized_keys file, implementing an SSH backdoor. Managing these files and detecting unauthorized changes is not hard and should be done if you operate Unix systems. https://isc.sans.edu/diary/Securing%20Your%20SSH%20authorized_keys%20File/31986 REMOTE COMMAND EXECUTION ON SMARTBEDDED METEOBRIDGE (CVE-2025-4008) Weatherstation software Meteobridge suffers from an easily...
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SANS Stormcast Tuesday, May 27th 2025: SVG Steganography; Fortinet PoC; GitLab Duo Prompt Injection (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Tuesday, May 27th 2025: SVG Steganography; Fortinet PoC; GitLab Duo Prompt Injection SVG Steganography Steganography is not only limited to pixel-based images but can be used to embed messages into vector-based formats like SVG. https://isc.sans.edu/diary/SVG%20Steganography/31978 Fortinet Vulnerability Details CVE-2025-32756 Horizon3.ai shows how it was able to find the vulnerability in Fortinet’s products, and how to possibly exploit this issue. The vulnerability is already being exploited in the wild and was patched May 13th...
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SANS Stormcast Friday, May 23rd 2025: Backup Connectivity; Windows 2025 dMSA Abuse; Samlify Vulnerability (#)
SANS Internet Storm Center's Daily Network Security News Podcast
SANS Stormcast Friday, May 23rd 2025: Backup Connectivity; Windows 2025 dMSA Abuse; Samlify Vulnerability Resilient Secure Backup Connectivity for SMB/Home Users Establishing resilient access to a home network via a second ISP may lead to unintended backdoors. Secure the access and make sure you have the visibility needed to detect abuse. https://isc.sans.edu/diary/Resilient%20Secure%20Backup%20Connectivity%20for%20SMB%20Home%20Users/31972 BadSuccessor: Abusing dMSA to Escalate Privileges in Active Directory An attacker with the ability to create service accounts may be able to manipulate...
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