Collaborate Disseminate
By Ben Reardon, Corelight Security Researcher This month’s Microsoft Patch Tuesday included a severe Remote Code Execution vulnerability in the way that Windows TCP/IP handles IPv6 “Router Advertisement” ICMP messages. Due to the severity and wide scop… Continue reading Community detection: CVE-2020-16898
Are you familiar with the Element chat system of https://app.element.io ? Are you familiar with its connections to Matrix.org (for a free account)? Is there a way that I can sniff this traffic on the OS when I hit the enter key on a messag… Continue reading How To Validate Secure Traffic from Chrome with Element To Matrix.org on Linux
I have started working with winpcap, and i got a funny situation with tcp/udp ports.
I wrote a packet forwarder, that sniff on interface and forward packets from specified ports. I do not open the ports because i sniff directly from interf… Continue reading Open TCP/UDP with no socket [closed]
I have started working with winpcap, and i got a funny situation with tcp/udp ports.
I wrote a packet forwarder, that sniff on interface and forward packets from specified ports. I do not open the ports because i sniff directly from interf… Continue reading Open TCP/UDP with no socket [closed]
By Christian Kreibich, Principal Engineer, Corelight The past few weeks have seen several developments around Community ID, our open standard for rendering network traffic flow tuples into a concise textual representation. I’d like to summarize them in… Continue reading Community ID support for Wireshark
By Christian Kreibich, Principal Engineer, Corelight The past few weeks have seen several developments around Community ID, our open standard for rendering network traffic flow tuples into a concise textual representation. I’d like to summarize them in… Continue reading Community ID support for Wireshark
My current project contains multiple heterogeneous TCP servers, but our IT guys have clearly declared that they will give me only one 443 port, which is fair enough.
Two options are on the table now. One is VPN. We can set up a VPN serve… Continue reading Exposing different services on the same port
My current project contains multiple heterogeneous TCP servers, but our IT guys have clearly declared that they will give me only one 443 port, which is fair enough.
Two options are on the table now. One is VPN. We can set up a VPN serve… Continue reading Exposing different services on the same port
From my understanding, TCP spoofing can be carried out if the attacker can correctly guess the sequence numbers from the response packets (to mimic the real client). The attacker may even obtain this sequence of numbers via sniffing. Furth… Continue reading Does an attacker need to guess or brute-force a password for TCP spoofing?
I know TCP SYN packets can be sent using PF_PACKET raw sockets. If I put the wrong source IP address in the ethernet frame, the router doesn’t change the source IP address? and spoofing source mac address is needed?
If I send packets using… Continue reading How IP spoofed syn flood works? [closed]