Cisco IOS Software Layer 2 Tunneling Protocol (L2TP) Denial of Service Vulnerability

A vulnerability exists in the Cisco IOS software implementation of Layer 2 Tunneling Protocol L2TP, which affects limited Cisco IOS software releases. Several features enable the L2TP mgmt daemon process within Cisco IOS software, including but not limited to Layer 2 virtual private networks L2VP...

JVN#49602378 SEIL/B1 authentication issue

The PPP Access Concentrator PPPAC function within SEIL/B1 contains an issue in the CHAP and MS-CHAP-V2 authentication processes, the same challenge value is repeatedly used for each authentication attempt. Impact A third party may be able to perform replay attacks. As a result, the third party ma...

FreeBSD : L2TP, ISAKMP, and RADIUS parsing vulnerabilities in tcpdump (96ba2dae-4ab0-11d8-96f2-0020ed76ef5a)

Jonathan Heusser discovered vulnerabilities in tcpdump's L2TP, ISAKMP, and RADIUS protocol handlers. These vulnerabilities may be used by an attacker to crash a running tcpdump' process. %NASLMINLEVEL 70300 C Tenable Network Security, Inc. The descriptive text and package checks in this plugin we...

Ubuntu Update for linux, linux-source-2.6.15/20/22 vulnerabilities USN-625-1

Ubuntu Update for Linux kernel vulnerabilities USN-625-1 OpenVAS Vulnerability Test $Id: gbubuntuUSN6251.nasl 7969 2017-12-01 09:23:16Z santu $ Ubuntu Update for linux, linux-source-2.6.15/20/22 vulnerabilities USN-625-1 Authors: System Generated Check Copyright: Copyright c 2009 Greenbone Networ...

Cisco IOS, Cisco 10000, uBR10012, uBR7200 and Cisco UCM multiple security vulnerabilities

DoS with L2TP, MPLS, IPS, SIP, SSL vulnerabilities, information leaks, multiple multicast security vulnerabilities, NAT SCP, IOS Software firewall application inspection security vulnerabilities...

Cisco Security Advisory: Cisco IOS Software Layer 2 Tunneling Protocol (L2TP) Denial of Service Vulnerability

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Cisco Security Advisory: Cisco IOS Software Layer 2 Tunneling Protocol L2TP Denial of Service Vulnerability Advisory ID: cisco-sa-20080924-l2tp http://www.cisco.com/warp/public/707/cisco-sa-20080924-l2tp.shtml Revision 1.0 For Public Release 2008...

CVE-2008-3813

Unspecified vulnerability in Cisco IOS 12.2 and 12.4, when the L2TP mgmt daemon process is enabled, allows remote attackers to cause a denial of service device reload via a crafted L2TP packet...

Code injection

Unspecified vulnerability in Cisco IOS 12.2 and 12.4, when the L2TP mgmt daemon process is enabled, allows remote attackers to cause a denial of service device reload via a crafted L2TP packet...

CVE-2008-3813

Unspecified vulnerability in Cisco IOS 12.2 and 12.4, when the L2TP mgmt daemon process is enabled, allows remote attackers to cause a denial of service device reload via a crafted L2TP packet...

CVE-2008-3813

Cisco IOS 12.2 and 12.4 are affected by CVE-2008-3813 due to the L2TP management daemon running on the device. When this daemon is enabled (in features like L2VPN, L2TPv3, SGBP, or VPDN), processing a specially crafted L2TP packet can trigger a device reload, resulting in a denial of service. The...

Cisco IOS第二层隧道协议远程拒绝服务漏洞

BUGTRAQ ID: 31358 CVE ID: CVE-2008-3813 CNCVE ID：CNCVE-20083813 Cisco IOS是一款流行的网络操作系统。 Cisco IOS第二层隧道协议实现存在一个漏洞，远程攻击者可以利用漏洞对设备进行拒绝服务攻击，导致设备重载。 Cisco IOS软件中的L2TP mgmt守护进程启用多个功能，包括Layer 2 virtual private networks L2VPN, Layer 2 Tunnel Protocol Version 3 L2TPv3, Stack Group Bidding Protocol SGBP和Cis...

CVE-2008-3813: Undefined Security Weakness

Unspecified vulnerability in Cisco IOS 12.2 and 12.4, when the L2TP mgmt daemon process is enabled, allows remote attackers to cause a denial of service device reload via a crafted L2TP packet...

Cisco IOS Software Layer 2 Tunneling Protocol (L2TP) Denial of Service Vulnerability

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FreeBSD Ports: tcpdump

The remote host is missing an update to the system as announced in the referenced advisory. SPDX-FileCopyrightText: 2008 E-Soft Inc. Some text descriptions might be excerpted from a referenced sources, and are Copyright C by the respective right holders. SPDX-License-Identifier: GPL-2.0-only...

FreeBSD Ports: tcpdump

The remote host is missing an update to the system as announced in the referenced advisory. VID 96ba2dae-4ab0-11d8-96f2-0020ed76ef5a OpenVAS Vulnerability Test $ Description: Auto generated from vuxml or freebsd advisories Authors: Thomas Reinke Copyright: Copyright c 2008 E-Soft Inc...

Ubuntu 6.06 LTS / 7.04 / 7.10 / 8.04 LTS : linux, linux-source-2.6.15/20/22 vulnerabilities (USN-625-1)

Dirk Nehring discovered that the IPsec protocol stack did not correctly handle fragmented ESP packets. A remote attacker could exploit this to crash the system, leading to a denial of service. CVE-2007-6282 Johannes Bauer discovered that the 64bit kernel did not correctly handle hrtimer updates. ...

USN-625-1: Linux kernel vulnerabilities

Dirk Nehring discovered that the IPsec protocol stack did not correctly handle fragmented ESP packets. A remote attacker could exploit this to crash the system, leading to a denial of service. CVE-2007-6282 Johannes Bauer discovered that the 64bit kernel did not correctly handle hrtimer updates. ...

Cisco IOS双栈路由器IPv6拒绝服务漏洞

BUGTRAQ ID: 28461 CVECAN ID: CVE-2008-1153 Cisco IOS是思科网络设备中所使用的互联网操作系统。 运行Cisco IOS软件的设备如果启用了IPv6，就会受拒绝服务攻击影响。设备必须还要启用了IPv4 UDP服务才会受这个漏洞影响。如果要利用这个漏洞，攻击IPv6报文必须指向设备，通过路由器路由的报文不会触发这个漏洞。成功利用这个漏洞可能导致以下情况之一： 1. 如果接口上配置了RSVP服务则设备会崩溃。 2. 任何其他受影响的基于IPv4 UDP的服务会导致接口无法接收更多的通讯，仅有利用漏洞端口才会受影响。...

Cisco PIX/ASA设备多个远程拒绝服务及认证绕过漏洞

PIX是一款防火墙设备，可为用户和应用提供策略强化、多载体攻击防护和安全连接服务；自适应安全设备（ASA）是可提供安全和VPN服务的模块化平台。 Cisco PIX/ASA设备中存在多个远程漏洞，远程攻击者可能利用此漏洞导致设备无法正常工作或绕过认证。 具体如下： 绕过LDAP认证 +------------------------- 使用LDAP AAA服务器对终止的L2TP IPSec隧道或远程管理会话进行认证的Cisco ASA 和PIX设备可能受认证绕过攻击的影响，更多信息请见以下公告： 2层隧道协议（L2TP） 必须将终止L2TP...

Authentication flaw

Unspecified vulnerability in Cisco Adaptive Security Appliance ASA and PIX 7.2 before 7.228, when using Layer 2 Tunneling Protocol L2TP or Remote Management Access, allows remote attackers to bypass LDAP authentication and gain privileges via unknown vectors...