There is a minor bug on the Microsoft Server 2008 DNS service that responds with the list of all root servers when queried for non-authoritative domains, even when recursion is set to OFF. This allows a malicious party to spoof the source ip on a udp DNS request to any Microsoft Server 2008 DNS and elicit a 533 byte response to a victim, making the server a contributor to coordinated distributed denial of service attacks. The response contains the default list of root DNS servers.
3ab734fcb865afbabdc1004a74625865444aad1020e90004c4aa22a1133b0f2aUbuntu Security Notice 2113-1 - Saran Neti reported a flaw in the ipv6 UDP Fragmentation Offload (UFI) in the Linux kernel. A remote attacker could exploit this flaw to cause a denial of service (panic). Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.
b4b98d6e24984870cfe76d2ee9c3764dde0cfada14d2de91292681590d95ce1eUbuntu Security Notice 2113-1 - Saran Neti reported a flaw in the ipv6 UDP Fragmentation Offload (UFI) in the Linux kernel. A remote attacker could exploit this flaw to cause a denial of service (panic). Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.
b4b98d6e24984870cfe76d2ee9c3764dde0cfada14d2de91292681590d95ce1eUbuntu Security Notice 2117-1 - Saran Neti reported a flaw in the ipv6 UDP Fragmentation Offload (UFI) in the Linux kernel. A remote attacker could exploit this flaw to cause a denial of service (panic). Mathy Vanhoef discovered an error in the the way the ath9k driver was handling the BSSID masking. A remote attacker could exploit this error to discover the original MAC address after a spoofing attack. Andrew Honig reported a flaw in the Linux Kernel's kvm_vm_ioctl_create_vcpu function of the Kernel Virtual Machine (KVM) subsystem. A local user could exploit this flaw to gain privileges on the host machine. Various other issues were also addressed.
988c359c9d2af2f86d73d91b71720fa19adc7f621c4b9b65867f1729c58bb05cipt_pkd is an iptables extension implementing port knock detection with SPA (single packet authorization). This project provides 3 parts: the kernel module ipt_pkd, the iptables user space module libipt_pkd.so, and a user space client knock program. For the knock packet, it uses a UDP packet sent to a random port that contains a SHA-256 of a timestamp, small header, random bytes, and a shared key. ipt_pkd checks the time window of the packet and does the SHA-256 to verify the packet. The shared key is never sent.
80cfd1f2cb606a00ce131d4f55531bcda605931849efe12331e37b5a2a1bba48ipt_pkd is an iptables extension implementing port knock detection with SPA (single packet authorization). This project provides 3 parts: the kernel module ipt_pkd, the iptables user space module libipt_pkd.so, and a user space client knock program. For the knock packet, it uses a UDP packet sent to a random port that contains a SHA-256 of a timestamp, small header, random bytes, and a shared key. ipt_pkd checks the time window of the packet and does the SHA-256 to verify the packet. The shared key is never sent.
ad61827f4306220c69140ffabd99f6c79379ac7b1d18b80550d610c13b008aafRed Hat Security Advisory 2014-0100-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's TCP/IP protocol suite implementation handled sending of certain UDP packets over sockets that used the UDP_CORK option when the UDP Fragmentation Offload feature was enabled on the output device. A local, unprivileged user could use this flaw to cause a denial of service or, potentially, escalate their privileges on the system. A flaw was found in the way the perf_trace_event_perm() function in the Linux kernel checked permissions for the function tracer functionality. An unprivileged local user could use this flaw to enable function tracing and cause a denial of service on the system.
727398f9fbb6e96f7d037aef65ed857962d0af32a4a9cdc6be996dd37bd672bcSimple Packet Sender (SPS) is a Linux packet crafting tool. It supports IPv4, IPv6 (but not extension headers yet), and tunneling IPv6 over IPv4. Written in C on Linux with GUI built using GTK+. Both source and binaries are included. Features include packet crafting and sending one, multiple, or flooding packets of type TCP, ICMP, or UDP. All values within ethernet frame can be modified arbitrarily. Supports TCP, ICMP and UDP data as well, with input from either keyboard as UTF-8/ASCII, keyboard as hexadecimal, or from file. Various other features exist as well.
2207203916300a941ef91bb9840ffeb11378e996d7ea1b05693921744df6b351Ubuntu Security Notice 2073-1 - Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Multiple integer overflow flaws were discovered in the Alchemy LCD frame- buffer drivers in the Linux kernel. An unprivileged local user could exploit this flaw to gain administrative privileges. Various other issues were also addressed.
16859392296a8e49c730dd0be2040d64bc697c90cd6f5ed3e029c79b42dca9afUbuntu Security Notice 2069-1 - Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Multiple integer overflow flaws were discovered in the Alchemy LCD frame- buffer drivers in the Linux kernel. An unprivileged local user could exploit this flaw to gain administrative privileges. Various other issues were also addressed.
ff28440a1056bceaebba0542f35684ebacb0eb83dda2f047d34bdc6807345b25Ubuntu Security Notice 2067-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
f026924acc26aeec8f7f134fa6517d8629dc2787dfd6d43f822b523543fcffd0Ubuntu Security Notice 2066-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
8c36dcc617fba5e580a95c0a946cd2ed38307f4107c63ecd9381c14a771a9437GNUnet is a peer-to-peer framework with focus on providing security. All peer-to-peer messages in the network are confidential and authenticated. The framework provides a transport abstraction layer and can currently encapsulate the network traffic in UDP (IPv4 and IPv6), TCP (IPv4 and IPv6), HTTP, or SMTP messages. GNUnet supports accounting to provide contributing nodes with better service. The primary service build on top of the framework is anonymous file sharing.
11b4bdb47be09aabfd74593ea132001bce44d0a7ea020aefcd12723f0f61177fRed Hat Security Advisory 2013-1801-01 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's TCP/IP protocol suite implementation handled sending of certain UDP packets over sockets that used the UDP_CORK option when the UDP Fragmentation Offload feature was enabled on the output device. A local, unprivileged user could use this flaw to cause a denial of service or, potentially, escalate their privileges on the system. A divide-by-zero flaw was found in the apic_get_tmcct() function in KVM's Local Advanced Programmable Interrupt Controller implementation. A privileged guest user could use this flaw to crash the host.
d0f1b4d682fc9cc34de66855fdecdbfa199350b9da866e2821619994c2c3dc37Ubuntu Security Notice 2046-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
03785f067577ddb309b03a9c22e4a48647107a96022c5542a8d1e205dce12690Ubuntu Security Notice 2044-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
69dddc0e11072dfec4e5cfed767210007ebc58a07e36bdafb16dbcf97192b474Ubuntu Security Notice 2043-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
dc9ad1fd4040c0efabd27e3cf552fea80f91fdd21b95f70f70341c917b59fe10Ubuntu Security Notice 2042-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
480e958bba4ab37b1a3cfcf0c5a4c49492b0c37fbcdadacc0664eea458c53352Ubuntu Security Notice 2040-1 - A flaw was discovered in the Linux kernel's dm snapshot facility. A remote authenticated user could exploit this flaw to obtain sensitive information or modify/corrupt data. Hannes Frederic Sowa discovered a flaw in the Linux kernel's UDP Fragmentation Offload (UFO). An unprivileged local user could exploit this flaw to cause a denial of service (system crash) or possibly gain administrative privileges. Various other issues were also addressed.
af9463083a622904006c60e2c6be905bedc2d93a64cda6378ec05d653f777575Red Hat Security Advisory 2013-1645-02 - The kernel packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way the Linux kernel's IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.
97d65ec407c60f5d7fb845675304c446d1888daf065dc7d8976e4e16c33033abRed Hat Security Advisory 2013-1490-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. A flaw was found in the way IP packets with an Internet Header Length of zero were processed in the skb_flow_dissect() function in the Linux kernel. A remote attacker could use this flaw to trigger an infinite loop in the kernel, leading to a denial of service. A flaw was found in the way the Linux kernel's IPv6 implementation handled certain UDP packets when the UDP Fragmentation Offload feature was enabled. A remote attacker could use this flaw to crash the system or, potentially, escalate their privileges on the system.
940f925cc01d5946698f3c8f547317f6ac1c6b045d85b6aabe0408192318c0ecCisco Security Advisory - A vulnerability in the Resource Reservation Protocol (RSVP) feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger an interface queue wedge on the affected device. The vulnerability is due to improper parsing of UDP RSVP packets. An attacker could exploit this vulnerability by sending UDP port 1698 RSVP packets to the vulnerable device. An exploit could cause Cisco IOS Software and Cisco IOS XE Software to incorrectly process incoming packets, resulting in an interface queue wedge, which can lead to loss of connectivity, loss of routing protocol adjacency, and other denial of service (DoS) conditions. Cisco has released free software updates that address this vulnerability. Workarounds that mitigate this vulnerability are available.
3b78cfc49fd1ee0b1521f34bcd5270992188dc65edc558825433c0c63d976267This is a brief paper discussing how tunneling works and how to leverage SSH and UDP tunneling. Written in Portuguese.
9bb1ba2673528899067c00d14ff731ebc9b1d8a37ed25d10b4dd90047f78a0e1Nmap is a utility for port scanning large networks, although it works fine for single hosts. Sometimes you need speed, other times you may need stealth. In some cases, bypassing firewalls may be required. Not to mention the fact that you may want to scan different protocols (UDP, TCP, ICMP, etc.). Nmap supports Vanilla TCP connect() scanning, TCP SYN (half open) scanning, TCP FIN, Xmas, or NULL (stealth) scanning, TCP ftp proxy (bounce attack) scanning, SYN/FIN scanning using IP fragments (bypasses some packet filters), TCP ACK and Window scanning, UDP raw ICMP port unreachable scanning, ICMP scanning (ping-sweep), TCP Ping scanning, Direct (non portmapper) RPC scanning, Remote OS Identification by TCP/IP Fingerprinting, and Reverse-ident scanning. Nmap also supports a number of performance and reliability features such as dynamic delay time calculations, packet timeout and retransmission, parallel port scanning, detection of down hosts via parallel pings.
ceb8bfd138006719443689787d71b3323b126491f6abda1d0a0d7f3d4f037b4brpcbind CALLIT procedure UDP denial of service proof of concept exploit.
b1f8e8ac62cc8aa90feb364db73662e95355e499461aacc4babe70c99e31dd2d
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