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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ISC StormCast for Monday, April 26th, 2021
Compact VBA Macros https://isc.sans.edu/forums/diary/Malicious+PowerPoint+AddOn+Small+Is+Beautiful/27342/ Base64 Strings Used in Web Scanning https://isc.sans.edu/forums/diary/Base64+Hashes+Used+in+Web+Scanning/27346/ Clickstudios Password Manager Compromise https://www.csis.dk/newsroom-blog-overview/2021/moserpass-supply-chain/ Homebrew Code Execution Vulnerability https://brew.sh/2021/04/21/security-incident-disclosure/ Apple AirDrop Shares Personal Data https://www.informatik.tu-darmstadt.de/fb20/ueber_uns_details_231616.en.jsp
ISC StormCast for Monday, April 26th, 2021
Compact VBA Macros https://isc.sans.edu/forums/diary/Malicious+PowerPoint+AddOn+Small+Is+Beautiful/27342/ Base64 Strings Used in Web Scanning https://isc.sans.edu/forums/diary/Base64+Hashes+Used+in+Web+Scanning/27346/ Clickstudios Password Manager Compromise https://www.csis.dk/newsroom-blog-overview/2021/moserpass-supply-chain/ Homebrew Code Execution Vulnerability https://brew.sh/2021/04/21/security-incident-disclosure/ Apple AirDrop Shares Personal Data https://www.informatik.tu-darmstadt.de/fb20/ueber_uns_details_231616.en.jsp
ISC StormCast for Friday, April 23rd, 2021
How Safe are Your Docker Images https://isc.sans.edu/forums/diary/How+Safe+Are+Your+Docker+Images/27340/ Additional SolarWinds Infrastructure https://www.riskiq.com/blog/external-threat-management/solarwinds-c2-servers-new-tactics/ Cellebrite Exploit https://signal.org/blog/cellebrite-vulnerabilities/ Duo 2FA Bypass https://sensepost.com/blog/2021/duo-two-factor-authentication-bypass/
ISC StormCast for Friday, April 23rd, 2021
How Safe are Your Docker Images https://isc.sans.edu/forums/diary/How+Safe+Are+Your+Docker+Images/27340/ Additional SolarWinds Infrastructure https://www.riskiq.com/blog/external-threat-management/solarwinds-c2-servers-new-tactics/ Cellebrite Exploit https://signal.org/blog/cellebrite-vulnerabilities/ Duo 2FA Bypass https://sensepost.com/blog/2021/duo-two-factor-authentication-bypass/
ISC StormCast for Thursday, April 22nd, 2021
Linux Kernel Maintainer Calls Out "hypocrite commits" by University of Minnesota https://lore.kernel.org/lkml/20210421130105.1226686-38-gregkh@linuxfoundation.org/ https://github.com/QiushiWu/QiushiWu.github.io/blob/main/papers/OpenSourceInsecurity.pdf https://www-users.cs.umn.edu/~kjlu/papers/clarifications-hc.pdf QNAP QLocker uses 7-Zip https://www.bleepingcomputer.com/news/security/massive-qlocker-ransomware-attack-uses-7zip-to-encrypt-qnap-devices/ Chrome O-Day Fixed https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html
ISC StormCast for Thursday, April 22nd, 2021
Linux Kernel Maintainer Calls Out "hypocrite commits" by University of Minnesota https://lore.kernel.org/lkml/20210421130105.1226686-38-gregkh@linuxfoundation.org/ https://github.com/QiushiWu/QiushiWu.github.io/blob/main/papers/OpenSourceInsecurity.pdf https://www-users.cs.umn.edu/~kjlu/papers/clarifications-hc.pdf QNAP QLocker uses 7-Zip https://www.bleepingcomputer.com/news/security/massive-qlocker-ransomware-attack-uses-7zip-to-encrypt-qnap-devices/ Chrome O-Day Fixed https://thehackernews.com/2021/04/update-your-chrome-browser-immediately.html
ISC StormCast for Wednesday, April 21st, 2021
Pulse Secure VPN 0-Day Exploited https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/ SonicWall Vulnerabilities https://www.sonicwall.com/support/product-notification/security-notice-sonicwall-email-security-zero-day-vulnerabilities/210416112932360/ Synology Vulnerability https://blog.talosintelligence.com/2021/04/vuln-spotlight-synology-dsm.html#more Air Fryer Vulnerability https://blog.talosintelligence.com/2021/04/vuln-spotlight-co.html
ISC StormCast for Wednesday, April 21st, 2021
Pulse Secure VPN 0-Day Exploited https://www.fireeye.com/blog/threat-research/2021/04/suspected-apt-actors-leverage-bypass-techniques-pulse-secure-zero-day.html https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44784/ SonicWall Vulnerabilities https://www.sonicwall.com/support/product-notification/security-notice-sonicwall-email-security-zero-day-vulnerabilities/210416112932360/ Synology Vulnerability https://blog.talosintelligence.com/2021/04/vuln-spotlight-synology-dsm.html#more Air Fryer Vulnerability https://blog.talosintelligence.com/2021/04/vuln-spotlight-co.html
ISC StormCast for Tuesday, April 20th, 2021
Hunting Phishing Websites with Favicon Hashes https://isc.sans.edu/forums/diary/Hunting+phishing+websites+with+favicon+hashes/27326/ Nagios XI Vulnerability Exploited by Cryptominers https://unit42.paloaltonetworks.com/nagios-xi-vulnerability-cryptomining/ XCSSET Malware Adapting to MacOS 11 and M1 https://www.trendmicro.com/en_us/research/21/d/xcsset-quickly-adapts-to-macos-11-and-m1-based-macs.html QNAP Patches https://www.qnap.com/de-de/security-advisories?ref=security_advisory_details Juniper Updates https://kb.juniper.net/InfoCenter/index?page=content&channel=SECURITY_ADVISORIES
ISC StormCast for Tuesday, April 20th, 2021
Hunting Phishing Websites with Favicon Hashes https://isc.sans.edu/forums/diary/Hunting+phishing+websites+with+favicon+hashes/27326/ Nagios XI Vulnerability Exploited by Cryptominers https://unit42.paloaltonetworks.com/nagios-xi-vulnerability-cryptomining/ XCSSET Malware Adapting to MacOS 11 and M1 https://www.trendmicro.com/en_us/research/21/d/xcsset-quickly-adapts-to-macos-11-and-m1-based-macs.html QNAP Patches https://www.qnap.com/de-de/security-advisories?ref=security_advisory_details Juniper Updates https://kb.juniper.net/InfoCenter/index?page=content&channel=SECURITY_ADVISORIES
ISC StormCast for Monday, April 19th, 2021
Decoding Cobalt Strike Traffic https://isc.sans.edu/forums/diary/Decoding+Cobalt+Strike+Traffic/27322/ Codecov Breach https://about.codecov.io/security-update/ Google Project Zero Tweaks Disclosure Rules https://googleprojectzero.blogspot.com EIPStackGroup OpENer Ethernet/IP https://us-cert.cisa.gov/ics/advisories/icsa-21-105-02 DNS Problems with Windows 10 Security Update https://www.bleepingcomputer.com/news/microsoft/mandatory-windows-10-update-causing-dns-and-shared-folder-issues/
ISC StormCast for Monday, April 19th, 2021
Decoding Cobalt Strike Traffic https://isc.sans.edu/forums/diary/Decoding+Cobalt+Strike+Traffic/27322/ Codecov Breach https://about.codecov.io/security-update/ Google Project Zero Tweaks Disclosure Rules https://googleprojectzero.blogspot.com EIPStackGroup OpENer Ethernet/IP https://us-cert.cisa.gov/ics/advisories/icsa-21-105-02 DNS Problems with Windows 10 Security Update https://www.bleepingcomputer.com/news/microsoft/mandatory-windows-10-update-causing-dns-and-shared-folder-issues/
ISC StormCast for Friday, April 16th, 2021
Why and How You Should be Using an Internal Certificate Authority https://isc.sans.edu/forums/diary/Why+and+How+You+Should+be+Using+an+Internal+Certificate+Authority/27314/ Vulnerabilities Used By Russian Foreign Intelligence Service https://www.nsa.gov/News-Features/Feature-Stories/Article-View/Article/2573391/russian-foreign-intelligence-service-exploiting-five-publicly-known-vulnerabili/ Insecurity URL Handling https://positive.security/blog/url-open-rce SANS Research Paper: Bryan Scarbrough; Malware Detection in Encrypted TLS Traffic Through Machine Learning https://www.sans.org/reading-room/whitepapers/artificialintelligence/malware-detection-encrypted-tls-traffic-machine-learning-40185
ISC StormCast for Friday, April 16th, 2021
Why and How You Should be Using an Internal Certificate Authority https://isc.sans.edu/forums/diary/Why+and+How+You+Should+be+Using+an+Internal+Certificate+Authority/27314/ Vulnerabilities Used By Russian Foreign Intelligence Service https://www.nsa.gov/News-Features/Feature-Stories/Article-View/Article/2573391/russian-foreign-intelligence-service-exploiting-five-publicly-known-vulnerabili/ Insecurity URL Handling https://positive.security/blog/url-open-rce SANS Research Paper: Bryan Scarbrough; Malware Detection in Encrypted TLS Traffic Through Machine Learning https://www.sans.org/reading-room/whitepapers/artificialintelligence/malware-detection-encrypted-tls-traffic-machine-learning-40185
ISC StormCast for Thursday, April 15th, 2021
April 2021 Forensics Quiz Solution https://isc.sans.edu/forums/diary/April+2021+Forensic+Quiz+Answers+and+Analysis/27308/ Adobe Patch Tuesday https://helpx.adobe.com/security.html Chrome 90 Released (and 0-Day Exploits) https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop_14.html https://github.com/avboy1337/1195777-chrome0day https://github.com/r4j0x00/exploits/tree/master/chrome-0day SAP Updates https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=573801649 Linux/Mac Malware included in npm Module https://blog.sonatype.com/damaging-linux-mac-malware-bundled-within-browserify-npm-brandjack-attempt Congratulations to the SANS.edu National Cyber League Teams! https://twitter.com/SANS_EDU/status/1382453652602941440