SANS Stormcast: Daily Cyber Security News

More Exotic Excel Files Dropping AgentTesla https://isc.sans.edu/diary/More%20Exotic%20Excel%20Files%20Dropping%20AgentTesla/30150 CVE-2023-38831 WinRAR Vulnerability Exploited https://www.group-ib.com/blog/cve-2023-38831-winrar-zero-day/ Aruba Vulnerabilities https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2023-012.txt

Fernet Encryption in Malware https://isc.sans.edu/forums/diary/Have%20You%20Ever%20Heard%20of%20the%20Fernet%20Encryption%20Algorithm%3F/30146/ Malware Triage With Inotify Tools https://isc.sans.edu/diary/Quick+Malware+Triage+With+Inotify+Tools/30142/ Adobe Coldfusion Exploited https://www.cisa.gov/known-exploited-vulnerabilities-catalog Openfire Admin Console Vulnerability Exploited https://vulnc...

Fernet Encryption in Malware https://isc.sans.edu/forums/diary/Have%20You%20Ever%20Heard%20of%20the%20Fernet%20Encryption%20Algorithm%3F/30146/ Malware Triage With Inotify Tools https://isc.sans.edu/diary/Quick+Malware+Triage+With+Inotify+Tools/30142/ Adobe Coldfusion Exploited https://www.cisa.gov/known-exploited-vulnerabilities-catalog Openfire Admin Console Vulnerability Exploited https://vulnc...

SystemBC Scans and ProxyNation https://isc.sans.edu/diary/SystemBC%20Malware%20Activity%20/30138 https://cybersecurity.att.com/blogs/labs-research/proxynation-the-dark-nexus-between-proxy-apps-and-malware Exchange Server Security Update Re-Release https://techcommunity.microsoft.com/t5/exchange-team-blog/re-release-of-august-2023-exchange-server-security-update/ba-p/3900025 Ivanti Sentry Vulnerabi...

SystemBC Scans and ProxyNation https://isc.sans.edu/diary/SystemBC%20Malware%20Activity%20/30138 https://cybersecurity.att.com/blogs/labs-research/proxynation-the-dark-nexus-between-proxy-apps-and-malware Exchange Server Security Update Re-Release https://techcommunity.microsoft.com/t5/exchange-team-blog/re-release-of-august-2023-exchange-server-security-update/ba-p/3900025 Ivanti Sentry Vulnerabi...

From a Zalando Phish to a RAT https://isc.sans.edu/diary/From%20a%20Zalando%20Phishing%20to%20a%20RAT/30136 RARLAB WinRAR Recovery Volume Vulnerability https://www.zerodayinitiative.com/advisories/ZDI-23-1152/ Hotmail SPF Record Error Leads to spam false positives https://www.bleepingcomputer.com/news/microsoft/hotmail-email-delivery-fails-after-microsoft-misconfigures-dns/ Chinese Entanglement |...

From a Zalando Phish to a RAT https://isc.sans.edu/diary/From%20a%20Zalando%20Phishing%20to%20a%20RAT/30136 RARLAB WinRAR Recovery Volume Vulnerability https://www.zerodayinitiative.com/advisories/ZDI-23-1152/ Hotmail SPF Record Error Leads to spam false positives https://www.bleepingcomputer.com/news/microsoft/hotmail-email-delivery-fails-after-microsoft-misconfigures-dns/ Chinese Entanglement |...

Command Line Parsing - Are These Really Unique Strings? https://isc.sans.edu/diary/Command%20Line%20Parsing%20-%20Are%20These%20Really%20Unique%20Strings%3F/30126 iOS 16 Fake Airplane Mode https://www.jamf.com/blog/fake-airplane-mode-a-mobile-tampering-technique-to-maintain-connectivity/ LinkedIn Attacks https://cyberint.com/blog/research/linkedin-accounts-under-attack-how-to-protect-yourself/ Rob...

Command Line Parsing - Are These Really Unique Strings? https://isc.sans.edu/diary/Command%20Line%20Parsing%20-%20Are%20These%20Really%20Unique%20Strings%3F/30126 iOS 16 Fake Airplane Mode https://www.jamf.com/blog/fake-airplane-mode-a-mobile-tampering-technique-to-maintain-connectivity/ LinkedIn Attacks https://cyberint.com/blog/research/linkedin-accounts-under-attack-how-to-protect-yourself/ Rob...

PowerShell Gallery Prone to Typosqatting, Other Sypply Chain Attacks https://www.darkreading.com/application-security/powershell-gallery-prone-to-typosquatting-other-supply-chain-attacks Windows Random Time Issues https://arstechnica.com/security/2023/08/windows-feature-that-resets-system-clocks-based-on-random-data-is-wreaking-havoc/ Energy Company Targeted in QR Code Campaign https://cofense.com...

PowerShell Gallery Prone to Typosqatting, Other Sypply Chain Attacks https://www.darkreading.com/application-security/powershell-gallery-prone-to-typosquatting-other-supply-chain-attacks Windows Random Time Issues https://arstechnica.com/security/2023/08/windows-feature-that-resets-system-clocks-based-on-random-data-is-wreaking-havoc/ Energy Company Targeted in QR Code Campaign https://cofense.com...

macOS Background Task Manager Bypass https://www.wired.com/story/apple-mac-background-task-management-flaw/ Ivanti Avalanche Vulnerability https://www.tenable.com/security/research/tra-2023-27 Exploiting Synology NAS Cloud Connectivity https://claroty.com/team82/research/a-pain-in-the-nas-exploiting-cloud-connectivity-to-pwn-your-nas-synology-ds920-edition Fake Crypto Currency Apps Offered as "Bet...

macOS Background Task Manager Bypass https://www.wired.com/story/apple-mac-background-task-management-flaw/ Ivanti Avalanche Vulnerability https://www.tenable.com/security/research/tra-2023-27 Exploiting Synology NAS Cloud Connectivity https://claroty.com/team82/research/a-pain-in-the-nas-exploiting-cloud-connectivity-to-pwn-your-nas-synology-ds920-edition Fake Crypto Currency Apps Offered as "Bet...

PDFiD False Positives Revisited https://isc.sans.edu/diary/PDFiD%3A%20False%20Positives%20Revisited/30122 CVE-2023-32019 Fix Enabled by Default; https://support.microsoft.com/en-us/topic/kb5028407-how-to-manage-the-vulnerability-associated-with-cve-2023-32019-bd6ed35f-48b1-41f6-bd19-d2d97270f080 CyberPower and Dataprobe Vulnerabilities https://www.trellix.com/en-us/about/newsroom/stories/research/...

PDFiD False Positives Revisited https://isc.sans.edu/diary/PDFiD%3A%20False%20Positives%20Revisited/30122 CVE-2023-32019 Fix Enabled by Default; https://support.microsoft.com/en-us/topic/kb5028407-how-to-manage-the-vulnerability-associated-with-cve-2023-32019-bd6ed35f-48b1-41f6-bd19-d2d97270f080 CyberPower and Dataprobe Vulnerabilities https://www.trellix.com/en-us/about/newsroom/stories/research/...

Show Me All Your Windows https://isc.sans.edu/diary/Show%20me%20All%20Your%20Windows!/30116 Zero Touch Pwn https://blog.syss.com/posts/zero-touch-pwn/ Maginot DNS Spoofing Attack https://www.usenix.org/conference/usenixsecurity23/presentation/li-xiang

Show Me All Your Windows https://isc.sans.edu/diary/Show%20me%20All%20Your%20Windows!/30116 Zero Touch Pwn https://blog.syss.com/posts/zero-touch-pwn/ Maginot DNS Spoofing Attack https://www.usenix.org/conference/usenixsecurity23/presentation/li-xiang

Some things never change, such as SQL Authentication "Encryption" https://isc.sans.edu/diary/Some%20things%20never%20change%20%3F%20such%20as%20SQL%20Authentication%20%3Fencryption%3F/30112 Defender Pretender: When Windows Defender Updates Become a Security Risk https://www.blackhat.com/us-23/briefings/schedule/#defender-pretender-when-windows-defender-updates-become-a-security-risk-32706 Dell Com...

Some things never change, such as SQL Authentication "Encryption" https://isc.sans.edu/diary/Some%20things%20never%20change%20%3F%20such%20as%20SQL%20Authentication%20%3Fencryption%3F/30112 Defender Pretender: When Windows Defender Updates Become a Security Risk https://www.blackhat.com/us-23/briefings/schedule/#defender-pretender-when-windows-defender-updates-become-a-security-risk-32706 Dell Com...

Tunnelcrack VPN Vulnerability https://papers.mathyvanhoef.com/usenix2023-tunnelcrack.pdf Mozilla VPN Vulnerablity https://www.openwall.com/lists/oss-security/2023/08/03/1 Non English Exchange Server Patch Issues https://techcommunity.microsoft.com/t5/exchange-team-blog/released-august-2023-exchange-server-security-updates/bc-p/3894481/highlight/true VSCode Token Security https://cycode.com/blog/ex...

Tunnelcrack VPN Vulnerability https://papers.mathyvanhoef.com/usenix2023-tunnelcrack.pdf Mozilla VPN Vulnerablity https://www.openwall.com/lists/oss-security/2023/08/03/1 Non English Exchange Server Patch Issues https://techcommunity.microsoft.com/t5/exchange-team-blog/released-august-2023-exchange-server-security-updates/bc-p/3894481/highlight/true VSCode Token Security https://cycode.com/blog/ex...

Microsoft Patch Tuesday https://isc.sans.edu/diary/Microsoft%20August%202023%20Patch%20Tuesday/30106 Adobe Updates https://helpx.adobe.com/security/security-bulletin.html

Microsoft Patch Tuesday https://isc.sans.edu/diary/Microsoft%20August%202023%20Patch%20Tuesday/30106 Adobe Updates https://helpx.adobe.com/security/security-bulletin.html

Update: Researchers Scanning the Internet https://isc.sans.edu/diary/Update%3A%20Researchers%20scanning%20the%20Internet/30102 Malicious OpenBullet Configuration Files https://www.kasada.io/threat-intel-openbullet-malware/ Abusing Cloudflare Tunnels https://www.guidepointsecurity.com/blog/tunnel-vision-cloudflared-abused-in-the-wild/

Update: Researchers Scanning the Internet https://isc.sans.edu/diary/Update%3A%20Researchers%20scanning%20the%20Internet/30102 Malicious OpenBullet Configuration Files https://www.kasada.io/threat-intel-openbullet-malware/ Abusing Cloudflare Tunnels https://www.guidepointsecurity.com/blog/tunnel-vision-cloudflared-abused-in-the-wild/