Preemptive Protection against Multiple Vendors OPIE Off-by-one Stack Buffer Overflow Vulnerability

A stack buffer overflow vulnerability has been reported in OPIE. OPIE, "One time Passwords In Everything", is a login and password package installed on the server and the client, which makes untrusted networks safer against password-sniffing packet analysis software. OPIE is shipped with DragonFl...

Check the System if Opie-Server and Opie-Client installed

Check the System if Opie-Server and Opie-Client installed. Read /etc/pam.d/opie, List Files und /etc/pam.d/ with -include opie- entry, Read ChallengeResponseAuthentication entry in /etc/ssh/sshdconfig OpenVAS Vulnerability Test $Id: GSHBSSHOpie.nasl 7076 2017-09-07 11:53:47Z teissa $ Check the...

Check the System if Opie-Server and Opie-Client are installed

Check the System if Opie-Server and Opie-Client are installed. Read /etc/pam.d/opie, List Files und /etc/pam.d/ with -include opie- entry, Read ChallengeResponseAuthentication entry in /etc/ssh/sshdconfig SPDX-FileCopyrightText: 2010 Greenbone AG Some text descriptions might be excerpted from a...

FreeBSD OPIE实现__opiereadrec()函数单字节栈溢出漏洞

BUGTRAQ ID: 40403 CVE ID: CVE-2010-1938 FreeBSD就是一种运行在Intel平台上、可以自由使用的开放源码Unix类系统。 FreeBSD所使用的OPIE认证系统中readrec.c文件的opiereadrec函数存在单字节栈溢出漏洞，在启用了栈保护的情况下，攻击者可以远程导致使用OPIE的服务进程崩溃。以下是有漏洞的代码段： "/src/contrib/opie/opie.h" / Maximum length of a principal read: user name / define OPIEPRINCIPALMAX 32...

CVE-2010-1938

Off-by-one error in the opiereadrec function in readrec.c in libopie in OPIE 2.4.1-test1 and earlier, as used on FreeBSD 6.4 through 8.1-PRERELEASE and other platforms, allows remote attackers to cause a denial of service daemon crash or possibly execute arbitrary code via a long username, as...

CVE-2010-1938

The CVE-2010-1938 issue affects OPIE’s library (libopie) used by OPIE up to version 2.4.1-test1, on FreeBSD 6.4–8.1-PRERELEASE and other platforms. The vulnerability is an off-by-one error in __opiereadrec/readrec.c that can be triggered by a long USER command to FTP servers linked against libopi...

CVE-2010-1938

Off-by-one error in the opiereadrec function in readrec.c in libopie in OPIE 2.4.1-test1 and earlier, as used on FreeBSD 6.4 through 8.1-PRERELEASE and other platforms, allows remote attackers to cause a denial of service daemon crash or possibly execute arbitrary code via a long username, as...

FreeBSD Security Advisory FreeBSD-SA-10:05.opie

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-10:05.opie Security Advisory The FreeBSD Project Topic: OPIE off-by-one stack overflow Category: contrib Module: contribopie Announced: 2010-05-27 Credits:...

FreeBSD OPIE library off-by-one overflow

Off-by-one overflow during authentication...

FreeBSD 8.0 ftpd Off-By-One Proof Of Concept

libopie readrec off-by one FreeBSD ftpd remote PoC Authors: - Maksymilian Arciemowicz - Adam 'pi3' Zabrocki http://securityreason.com/achievementsecurityalert/87 http://site.pi3.com.pl/adv/libopie-adv.txt http://blog.pi3.com.pl/?p=111 Date: - Dis.: 04.05.2010 - Pub.: 27.05.2010 CVE: CVE-2010-1938...

FreeBSD -- OPIE off-by-one stack overflow

Problem Description: A programming error in the OPIE library could allow an off-by-one buffer overflow to write a single zero byte beyond the end of an on-stack buffer...

FreeBSD-SA-10:05.opie

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 ============================================================================= FreeBSD-SA-10:05.opie Security Advisory The FreeBSD Project Topic: OPIE off-by-one stack overflow Category: contrib Module: contribopie Announced: 2010-05-27 Credits:...

FreeBSD Security Advisory (FreeBSD-SA-06:12.opie.asc)

The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-06:12.opie.asc 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...

FreeBSD Security Advisory (FreeBSD-SA-06:12.opie.asc)

The remote host is missing an update to the system as announced in the referenced advisory FreeBSD-SA-06:12.opie.asc ADV FreeBSD-SA-06:12.opie.asc OpenVAS Vulnerability Test $ Description: Auto generated from vuxml or freebsd advisories Authors: Thomas Reinke Copyright: Copyright c 2008 E-Soft In...

S/Key和OPIE数据库漏洞

在使用S/Key或OPIE认证的服务器上存在一个安全漏洞。这个漏洞允许本地用户获得对S/Key或OPIE数据库的访问权。 S/Key是使用一次性口令技术的认证机制。系统管理员可以进行配置，使用户能够通过S/Key认证访问使用login8的任何服务，如Telnet和FTP。制定认证类型的配置文件是/etc/login.conf。 为了配置一个用户能够使用S/Key，管理员或该用户（如果程序是suid root）首先必须使用skeyinit（或keyinit）程序。这个程序初始化S/Key数据库（/etc/skeykeys）中的用户入口项。这个数据库文件包含输入S/Key口令时需要比较的信息...

CVE-2007-2768

OpenSSH, when using OPIE One-Time Passwords in Everything for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords OTP, a similar issue to CVE-2007-2243...

CVE-2007-2768

OpenSSH, when using OPIE One-Time Passwords in Everything for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords OTP, a similar issue to CVE-2007-2243...

CVE-2007-2768

OpenSSH, when using OPIE One-Time Passwords in Everything for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords OTP, a similar issue to CVE-2007-2243...

Design/Logic Flaw

OpenSSH, when using OPIE One-Time Passwords in Everything for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords OTP, a similar issue to CVE-2007-2243...

CVE-2007-2768

OpenSSH, when using OPIE One-Time Passwords in Everything for PAM, allows remote attackers to determine the existence of certain user accounts, which displays a different response if the user account exists and is configured to use one-time passwords OTP, a similar issue to CVE-2007-2243...