Cisco IOS XE FTP ALG Denial of Service Vulnerability

Cisco IOS XE is a set of modular operating system based on Linux kernel developed by Cisco for its network equipment. A denial of service vulnerability exists in the FTP Application Layer Gateway ALG feature used by Network Address Translation NAT, NAT64, and ZBFW in Cisco IOS XE. The vulnerabili...

Cisco IOS XE NAT SIP ALG Denial of Service Vulnerability

Cisco IOS XE is a set of modular operating system based on Linux kernel developed by Cisco for its network equipment. A denial of service vulnerability exists in the Network Address Translation NAT Session Initiation Protocol SIP Application Layer Gateway ALG of Cisco IOS XE. The vulnerability...

CVE-2019-12646

A vulnerability in the Network Address Translation NAT Session Initiation Protocol SIP Application Layer Gateway ALG of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of transient SIP...

Design/Logic Flaw

A vulnerability in the Network Address Translation NAT Session Initiation Protocol SIP Application Layer Gateway ALG of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of transient SIP...

Cisco IOS XE Software FTP Application Layer Gateway for NAT, NAT64, and ZBFW Denial of Service Vulnerability

A vulnerability in the FTP application layer gateway ALG functionality used by Network Address Translation NAT, NAT IPv6 to IPv4 NAT64, and the Zone-Based Policy Firewall ZBFW in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The...

PT-2019-3316 · Cisco · Cisco Ios Xe

Name of the Vulnerable Software and Affected Versions: Cisco IOS XE Software affected versions not specified Description: A vulnerability in the Network Address Translation NAT Session Initiation Protocol SIP Application Layer Gateway ALG could allow an unauthenticated, remote attacker to cause a...

Man-in-the-Middle (MitM)

The Network Time Protocol NTP is used to synchronize a computer's time with another referenced time source. It was found that because NTP's access control was based on a source IP address, an attacker could bypass source IP restrictions and send malicious control and configuration packets by...

The vulnerability of the Network Address Translation implementation in the Cisco IOS operating system allows a hacker to induce a service failure.

The vulnerability of the Network Address Translation 64 NAT64 implementation in Cisco IOS operating systems exists due to errors in the processing of IPv4 packets. Exploiting this vulnerability can allow a remote attacker to cause a system to stop responding or restart the device, resulting in...

CVE-2019-1751

A vulnerability in the Network Address Translation 64 NAT64 functions of Cisco IOS Software could allow an unauthenticated, remote attacker to cause either an interface queue wedge or a device reload. The vulnerability is due to the incorrect handling of certain IPv4 packet streams that are sent...

The vulnerability of the SNMP NAT module in Linux operating systems allows attackers to increase their privileges or cause service failures.

The vulnerability of the SNMP NAT module net/ipv4/netfilter/nfnatsnmpbasicmain.c in the Linux operating system is due to indexing errors in the array. Exploiting this vulnerability can allow an attacker to increase their privileges or cause service failures...

FreeBSD : ntp -- Crafted null dereference attack from a trusted source with an authenticated mode 6 packet (c2576e14-36e2-11e9-9eda-206a8a720317)

Network Time Foundation reports : A crafted malicious authenticated mode 6 ntpq packet from a permitted network address can trigger a NULL pointer dereference, crashing ntpd. Note that for this attack to work, the sending system must be on an address that the target's ntpd accepts mode 6 packets...

DEBIAN-CVE-2019-9162

In the Linux kernel before 4.20.12, net/ipv4/netfilter/nfnatsnmpbasicmain.c in the SNMP NAT module has insufficient ASN.1 length checks aka an array index error, making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmpversion and...

UBUNTU-CVE-2019-9162

In the Linux kernel before 4.20.12, net/ipv4/netfilter/nfnatsnmpbasicmain.c in the SNMP NAT module has insufficient ASN.1 length checks aka an array index error, making out-of-bounds read and write operations possible, leading to an OOPS or local privilege escalation. This affects snmpversion and...

How to Load Balance Trivial File Transfer Protocol Servers

This article describes how to load balance a Trivial File Transfer Protocol TFTP server using Reverse Network Address Translation RNAT and Use Source IP USIP. TFTP is simple file transport protocol. It uses User Datagram Protocol UDP port 69 as a transport protocol and is typically implemented on...

The vulnerability of the NAT mechanism in the Cisco IOS XE operating system, which allows a hacker to trigger a service failure.

The vulnerability of the Cisco IOS XE operating system’s NAT mechanism is related to errors in processing SIP packets. Exploiting this vulnerability allows a malicious actor to trigger a device reboot and a service failure by sending specially crafted SIP packets to port 5060...

Unpatched VirtualBox Zero-Day Vulnerability and Exploit Released Online

An independent exploit developer and vulnerability researcher has publicly disclosed a zero-day vulnerability in VirtualBox —a popular open source virtualization software developed by Oracle—that could allow a malicious program to escape virtual machine guest OS and execute code on the operating...

CVE-2018-0051

A Denial of Service vulnerability in the SIP application layer gateway ALG component of Junos OS based platforms allows an attacker to crash MS-PIC, MS-MIC, MS-MPC, MS-DPC or SRX flow daemon flowd process. This issue affects Junos OS devices with NAT or stateful firewall configuration in...

Junos OS: Denial of Service vulnerability in MS-PIC, MS-MIC, MS-MPC, MS-DPC and SRX flow daemon (flowd) related to SIP ALG

A Denial of Service vulnerability in the SIP application layer gateway ALG component of Junos OS based platforms allows an attacker to crash MS-PIC, MS-MIC, MS-MPC, MS-DPC or SRX flow daemon flowd process. This issue affects Junos OS devices with NAT or stateful firewall configuration in...

Race condition

A vulnerability in the Network Address Translation NAT Session Initiation Protocol SIP Application Layer Gateway ALG of Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to improper processing of SIP packets in...

Cisco IOS XE Software NAT SIP ALG Denial of Service Vulnerability

Cisco IOS XE Software is an operating system developed by Cisco for its network devices.Network Address Translation NAT Session Initiation Protocol SP Application Layer Gateway ALG is one of the gateway components. Network Address Translation NAT Session Initiation Protocol SP Application Layer...