Tag: certificates

security

SANS Stormcast Wednesday, January 21st, 2026: Punycode Hunting; telnetd vuln; 6 day Certs and IP Certs; Oracle Patches

Add Punycode to your Threat Hunting Routine Punycode patterns in DNS queries make excellent hunting opportunities. https://isc.sans.edu/diary/Add%20Punycode%20to%20your%20Threat%20Hunting%20Routine/32640 GNU InetUtils Security Advisory: remote authentication by-pass intelnetd telnetd shipping with InetUtils suffers from a critical authentication by-pass vulnerability. https://www.openwall.com/lists/oss-security/2026/01/20/2 6-day and IP Address Certificates are Generally Available Let s Encrypt will now offer 6-day certificates as an […]

Mehr lesen โ†’
security

SANS Stormcast Friday, September 5th, 2025: Cloudflare Response to 1.1.1.1 Certificate; AI Modem Namespace Reuse; macOS Vulnerability Allowed Keychain Decryption

Unauthorized Issuance of Certificate for 1.1.1.1 Cloudflare published a blog post with more details regarding the bad 1.1.1.1 certificate that was issued by Fina. https://blog.cloudflare.com/unauthorized-issuance-of-certificates-for-1-1-1-1/ AI Model Namespace Reuse Deleted accounts on Huggingface can be taken over by other entities unrelated to the original owner. https://unit42.paloaltonetworks.com/model-namespace-reuse/ macOS vulnerability allowed Keychain and iOS app decryption without […]

Mehr lesen โ†’
security

SANS Stormcast Monday, July 7th, 2025: interesting usernames; More sudo issues; CitrixBleed2 PoC; Short Lived Certs

Interesting ssh/telnet usernames Some interesting usernames observed in our honeypots https://isc.sans.edu/diary/A%20few%20interesting%20and%20notable%20ssh%20telnet%20usernames/32080 More sudo trouble The host option in Sudo can be exploited to execute commands on unauthorized hosts. https://www.stratascale.com/vulnerability-alert-CVE-2025-32462-sudo-host CitrixBleed2 PoC Posted (CVE-2025-5777) WatchTwer published additional details about the recently patched CitrixBleed vulnerability, including a PoC exploit. https://labs.watchtowr.com/how-much-more-must-we-bleed-citrix-netscaler-memory-disclosure-citrixbleed-2-cve-2025-5777/ Instagram Using Six Day Certificates Instagram changes […]

Mehr lesen โ†’