Date Author Title

SSL VPN

2021-07-10Guy BruneauScanning for Microsoft Secure Socket Tunneling Protocol
2020-03-15Guy BruneauVPN Access and Activity Monitoring

SSL

2023-06-28/a>Jan KoprivaKazakhstan - the world's last SSLv2 superpower... and a country with potentially vulnerable last-mile internet infrastructure
2023-06-01/a>Jan KoprivaAfter 28 years, SSLv2 is still not gone from the internet... but we're getting there
2023-02-25/a>Didier StevensCrypto Inside a Browser
2022-06-27/a>Johannes UllrichEncrypted Client Hello: Anybody Using it Yet?
2021-09-28/a>Jan KoprivaTLS 1.3 and SSL - the current state of affairs
2021-07-10/a>Guy BruneauScanning for Microsoft Secure Socket Tunneling Protocol
2021-04-16/a>Xavier MertensHTTPS Support for All Internal Services
2021-03-30/a>Jan KoprivaOld TLS versions - gone, but not forgotten... well, not really "gone" either
2020-12-30/a>Jan KoprivaTLS 1.3 is now supported by about 1 in every 5 HTTPS servers
2020-09-20/a>Guy BruneauAnalysis of a Salesforce Phishing Emails
2020-05-15/a>Rob VandenBrinkSHA3 Hashes (on Windows) - Where Art Thou?
2020-04-10/a>Xavier MertensPowerShell Sample Extracting Payload From SSL
2020-03-15/a>Guy BruneauVPN Access and Activity Monitoring
2019-12-13/a>Jan KoprivaInternet banking sites and their use of TLS... and SSLv3... and SSLv2?!
2019-10-22/a>Bojan ZdrnjaTesting TLSv1.3 and supported ciphers
2019-08-07/a>Bojan ZdrnjaVerifying SSL/TLS configuration (part 2)
2019-07-23/a>Bojan ZdrnjaVerifying SSL/TLS configuration (part 1)
2018-11-27/a>Xavier MertensMore obfuscated shell scripts: Fake MacOS Flash update
2018-09-19/a>Rob VandenBrinkCertificates Revisited - SSL VPN Certificates 2 Ways
2018-08-10/a>Remco VerhoefHunting SSL/TLS clients using JA3
2018-01-22/a>Didier StevensHTTPS on every port?
2017-12-03/a>Xavier MertensStartSSL: Termination of Services is Now Scheduled
2017-03-08/a>Richard PorterWhat is really being proxied?
2016-07-28/a>Bojan ZdrnjaVerifying SSL/TLS certificates manually
2016-05-03/a>Rick WannerOpenSSL Updates
2016-02-27/a>Guy BruneauOpenSSL Security Update Planned for 1 March Release
2016-01-31/a>Guy BruneauOpenSSL 1.0.2 Advisory and Update
2015-03-26/a>Daniel WesemannPin-up on your Smartphone!
2015-03-17/a>Didier StevensImproperly issued SSL certificate for domain "live.fi" could be used in attempts to spoof content. https://technet.microsoft.com/library/security/3046310
2015-03-12/a>Johannes UllrichWho got the bad SSL Certificate? Using tshark to analyze the SSL handshake.
2015-02-11/a>Johannes UllrichDid PCI Just Kill E-Commerce By Saying SSL is Not Sufficient For Payment Info ? (spoiler: TLS!=SSL)
2015-02-01/a>Rick WannerImproving SSL Warnings
2014-12-09/a>Johannes UllrichPOODLE Strikes (Bites?) Again
2014-08-11/a>Bojan ZdrnjaVerifying preferred SSL/TLS ciphers with Nmap
2014-08-06/a>Chris MohanOpenSSL Security Advisories http://www.openssl.org/news/secadv_20140806.txt
2014-06-12/a>Johannes UllrichMetasploit now includes module to exploit CVE-2014-0195 (OpenSSL DTLS Fragment Vuln.)
2014-06-05/a>Johannes UllrichCritical OpenSSL Patch Available. Patch Now!
2014-06-05/a>Johannes UllrichInternet Storm Center Briefing on OpenSSL Vulnerabilities today at 12pm ET (8am PT/4pm UTC) https://www.sans.org/webcasts/98445
2014-06-05/a>Johannes UllrichMore Details Regarding CVE-2014-0195 (DTLS arbitrary code execution)
2014-06-05/a>Johannes UllrichUpdated OpenSSL Patch Presentation
2014-04-26/a>Guy BruneauNew Project by Linux Foundation - Core Infrastructure Initiative
2014-04-21/a>Daniel WesemannOpenSSL Rampage
2014-04-21/a>Daniel WesemannFinding the bleeders
2014-04-16/a>Johannes UllrichNew Feature: Monitoring Certification Revocation Lists https://isc.sans.edu/crls.html
2014-04-15/a>Richard PorterVMWare Advisory VMSA-2014-0004 - Updates on OpenSSL HeartBleed http://www.vmware.com/security/advisories/VMSA-2014-0004.html
2014-04-14/a>Kevin ShorttINFOCon Green: Heartbleed - on the mend
2014-04-11/a>Johannes UllrichTonight OpenSSL Webcast #4: Client Side Issues / What to tell your kids & managers about it https://www.sans.org/webcasts/side-heartbleed-client-vulnerabilities-98135
2014-04-08/a>Guy BruneauOpenSSL CVE-2014-0160 Fixed
2014-04-08/a>Johannes Ullrich* Patch Now: OpenSSL "Heartbleed" Vulnerability
2014-02-25/a>Alex StanfordApple releases OS X 10.9.2 patching SSL vulnerability and updates Safari
2014-02-24/a>Russ McReeExplicit Trusted Proxy in HTTP/2.0 or...not so much
2014-01-02/a>John BambenekOpenSSL.org Defaced by Attackers Gaining Access to Hypervisor
2013-12-29/a>Russ McReeOpenSSL suffers apparent defacement
2013-12-11/a>Johannes UllrichBrowser Fingerprinting via SSL Client Hello Messages
2013-10-09/a>Johannes UllrichCSAM: SSL Request Logs
2013-09-09/a>Johannes UllrichSSL is broken. So what?
2013-08-21/a>Alex StanfordPsst. Your Browser Knows All Your Secrets.
2013-07-23/a>Bojan ZdrnjaSessions with(out) cookies
2013-05-17/a>Johannes UllrichSSL: Another reason not to ignore IPv6
2013-02-11/a>John BambenekOpenSSL 1.0.1e Released with Corrected fix for CVE-2013-1069, more here: http://www.openssl.org/
2013-01-03/a>Manuel Humberto Santander PelaezNew year and new CA compromised
2012-07-03/a>Johannes Ullrichocsp.comodoca.com blocklisted (by comodo itself)
2012-06-04/a>Johannes UllrichMicrosoft Emergency Bulletin: Unauthorized Certificate used in "Flame"
2012-06-04/a>Rob VandenBrinkBrowsers and SSL Security - a Race to the Bottom !
2012-05-31/a>Johannes UllrichSCADA@Home: Your health is no secret no more!
2012-05-22/a>Johannes Ullrichnmap 6 released
2012-05-21/a>Johannes UllrichWe updated our SSL certificate. Also note that we are deprecating various old hostname (isc.sans.org/incidents.org) and redirect now to isc.sans.edu. please update your bookmarks.
2012-04-24/a>Russ McReeOpenSSL reissues fix for ASN1 BIO vulnerability
2012-04-19/a>Kevin ShorttOpenSSL Security Advisory - CVE-2012-2110
2012-03-20/a>Johannes UllrichA Reminder: Private Key Security
2012-03-12/a>Guy BruneauOpenSSL Security Update
2012-02-08/a>Jim ClausingChrome to stop checking Certificate Revocation List (CRL)?
2012-01-05/a>Russ McReeOpenSSL vulnerability fixes
2011-11-07/a>Rob VandenBrinkStuff I Learned Scripting - Evaluating a Remote SSL Certificate
2011-10-26/a>Rob VandenBrinkThe Theoretical "SSL Renegotiation" Issue gets a Whole Lot More Real !
2011-10-05/a>Johannes UllrichAdobe SSL Certificate Problem (fixed)
2011-10-03/a>Bojan ZdrnjaBeauty and the BEAST
2011-09-23/a>Mark HofmanSSL/TLS Vulnerability Details to be Released Friday (Part 2)
2011-09-15/a>Swa FrantzenDigiNotar looses their accreditation for qualified certificates
2011-09-13/a>Swa FrantzenGlobalSign back in operation
2011-09-13/a>Swa FrantzenMore DigiNotar intermediate certificates blocklisted at Microsoft
2011-09-07/a>Lenny ZeltserGlobalSign Temporarily Stops Issuing Certificates to Investigate a Potential Breach
2011-09-06/a>Johannes UllrichMicrosoft Releases Diginotar Related Patch and Advisory
2011-09-01/a>Swa FrantzenDigiNotar breach - the story so far
2011-08-31/a>Johannes UllrichFirefox/Thunderbird 6.0.1 released to blocklist bad DigiNotar SSL certificates
2011-08-30/a>Johannes UllrichDigiNotar SSL Breach
2011-07-25/a>Johannes UllrichiOS 4.3.5 released fixing an SSL certificate verification flaw. http://support.apple.com/kb/HT1222
2011-07-10/a>Raul SilesSecurity Testing SSL/TLS (HTTPS) Implementations
2011-06-29/a>Johannes UllrichRandom SSL Tips and Tricks
2011-03-23/a>Johannes UllrichFirefox 3 Updates and SSL Blocklist extension
2011-03-23/a>Johannes UllrichMicrosoft Advisory about fraudulent SSL Certificates
2011-03-23/a>Johannes UllrichComodo RA Compromise
2010-11-16/a>Guy Bruneau OpenSSL TLS Extension Parsing Race Condition
2010-07-24/a>Manuel Humberto Santander PelaezTransmiting logon information unsecured in the network
2010-06-02/a>Mark HofmanOpenSSL version 1.0.0a released. This fixes a number of security issues. Don't forget a number of commercial appliances will be using this, so look for vendor updates soon.
2010-04-25/a>Raul SilesManual Verification of SSL/TLS Certificate Trust Chains using Openssl
2010-04-21/a>Johannes Ullrichisc.sans.org SSL Certificate and URL extensions
2010-03-29/a>Adrien de BeaupreOpenSSL V 1.0.0 released!
2010-02-26/a>Rick WannerOpenSSL 0.9.8m released.
2010-02-10/a>Marcus SachsVulnerability in TLS/SSL Could Allow Spoofing
2010-01-19/a>Jim ClausingApple Security Update 2010-001
2009-12-01/a>Chris CarboniClientless SSL VPN products break web browser domain-based security models
2009-11-13/a>Adrien de BeaupreTLS & SSLv3 renegotiation vulnerability explained
2009-11-06/a>Andre LudwigNew version of OpenSSL released - OpenSSL 0.9.8l
2009-11-05/a>Swa FrantzenTLS Man-in-the-middle on renegotiation vulnerability made public
2009-10-28/a>Johannes UllrichSniffing SSL: RFC 4366 and TLS Extensions
2009-10-12/a>Mark HofmanSome interesting SSL SPAM
2009-01-08/a>Kyle HaugsnessBIND OpenSSL follow-up
2008-12-30/a>Johannes UllrichMD5 SSL Summary
2008-09-11/a>David GoldsmithCookieMonster is coming to Pown (err, Town)
2008-07-29/a>Kyle HaugsnessGoogle SSL cert expired for POP/IMAP users
2008-05-16/a>Daniel WesemannINFOcon back to green
2008-05-15/a>Bojan ZdrnjaINFOCon yellow: update your Debian generated keys/certs ASAP
2008-05-15/a>Bojan ZdrnjaDebian and Ubuntu users: fix your keys/certificates NOW
2006-11-29/a>Toby KohlenbergNew Vulnerability Announcement and patches from Apple

VPN

2024-01-16/a>Johannes UllrichScans for Ivanti Connect "Secure" VPN Vulnerability (CVE-2023-46805, CVE-2024-21887)
2023-09-18/a>Johannes UllrichInternet Wide Multi VPN Search From Single /24 Network
2023-09-07/a>Johannes UllrichFleezeware/Scareware Advertised via Facebook Tags; Available in Apple App Store
2023-06-21/a>Yee Ching TokAnalyzing a YouTube Sponsorship Phishing Mail and Malware Targeting Content Creators
2021-09-21/a>Johannes UllrichA First Look at Apple's iOS 15 "Private Relay" feature.
2021-07-10/a>Guy BruneauScanning for Microsoft Secure Socket Tunneling Protocol
2020-07-29/a>Johannes UllrichConsumer VPNs: You May Be Fine Without
2020-03-15/a>Guy BruneauVPN Access and Activity Monitoring
2018-09-19/a>Rob VandenBrinkCertificates Revisited - SSL VPN Certificates 2 Ways
2017-04-02/a>Guy BruneauIPFire - A Household Multipurpose Security Gateway
2015-12-22/a>Rick WannerThe other Juniper vulnerability - CVE-2015-7756
2015-02-13/a>Johannes UllrichMicrosoft February Patch Failures Continue: KB3023607 vs. Cisco AnyConnect Client
2012-12-06/a>Johannes UllrichHow to identify if you are behind a "Transparent Proxy"
2011-06-28/a>Johannes UllrichDeja-Vu: Cisco VPN Windows Client Privilege Escalation
2010-10-19/a>Rob VandenBrinkCyber Security Awareness Month - Day 19 - Remote User VPN Tunnels - to Split or not to Split?
2010-10-19/a>Rob VandenBrinkCyber Security Awareness Month - Day 19 - VPN Architectures – SSL or IPSec?
2010-10-19/a>Rob VandenBrinkCyber Security Awareness Month - Day 19 - Remote User VPN Access – Are things getting too easy, or too hard?
2010-10-19/a>Rob VandenBrinkCyber Security Awareness Month - Day 19 - VPN and Remote Access Tools
2009-12-01/a>Chris CarboniClientless SSL VPN products break web browser domain-based security models
2009-11-17/a>Guy BruneauOpenVPN Fixed OpenSSL Session Renegotiation Issue