漏洞信息详情

OpenSSH sshd 权限许可和访问控制问题漏洞

• CNNVD编号：CNNVD-201508-001
• 危害等级： 中危
  
• CVE编号： CVE-2015-5600
• 漏洞类型： 权限许可和访问控制问题
• 发布时间： 2015-08-03
• 威胁类型： 远程
• 更新时间： 2021-11-08
• 厂        商： openbsd
• 漏洞来源：

漏洞简介

OpenSSH（OpenBSD Secure Shell）是OpenBSD计划组所维护的一套用于安全访问远程计算机的连接工具。该工具是SSH协议的开源实现，支持对所有的传输进行加密，可有效阻止窃听、连接劫持以及其他网络级的攻击。

OpenSSH 6.9及之前版本的sshd中的auth2-chall.c文件中的‘kbdint_next_device’函数存在安全漏洞，该漏洞源于程序没有正确限制处理单链接中的keyboard-interactive设备。远程攻击者可借助ssh -oKbdInteractiveDevices选项中较长且重复的列表利用该漏洞实施暴力破解攻击，或造成拒绝服务（CPU消耗）。

漏洞公告

目前厂商已经发布了升级补丁以修复此安全问题，补丁获取链接：

http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth2-chall.c

参考网址

来源:CONFIRM

链接:http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth2-chall.c

来源:CONFIRM

链接:https://support.CMS.zone.ci/e/tags/htag.php?tag=Apple target=_blank class=infotextkey>Apple.com/kb/HT205031

来源:CONFIRM

链接:https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05128992

来源:SECTRACK

链接:http://www.securitytracker.com/id/1032988

来源:CONFIRM

链接:https://kc.mcafee.com/corporate/index?page=content&id=SB10157

来源:CONFIRM

链接:https://security.netapp.com/advisory/ntap-20151106-0001/

来源:CONFIRM

链接:https://kc.mcafee.com/corporate/index?page=content&id=SB10136

来源:CONFIRM

链接:http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.HTML

来源:CONFIRM

链接:https://h20564.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c04952480

来源:FEDORA

链接:http://lists.fedoraproject.org/pipermail/package-announce/2015-July/162955.HTML

来源:CONFIRM

链接:http://www.oracle.com/technetwork/topics/security/bulletinoct2015-2511968.HTML

来源:CONFIRM

链接:http://cvsweb.openbsd.org/cgi-bin/cvsweb/src/usr.bin/ssh/auth2-chall.c.diff?r1=1.42&r2=1.43&f=h

来源:CONFIRM

链接:https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05157667

来源:CONFIRM

链接:http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.HTML

来源:FULLDISC

链接:http://seclists.org/fulldisclosure/2015/Jul/92

来源:MLIST

链接:https://lists.debian.org/debian-lts-announce/2018/09/msg00010.HTML

来源:MLIST

链接:http://openwall.com/lists/oss-security/2015/07/23/4

来源:UBUNTU

链接:http://www.ubuntu.com/usn/USN-2710-2

来源:UBUNTU

链接:http://www.ubuntu.com/usn/USN-2710-1

来源:GENTOO

链接:https://security.gentoo.org/glsa/201512-04

来源:BID

链接:https://www.securityfocus.com/bid/91787

来源:REDHAT

链接:http://rhn.redhat.com/errata/RHSA-2016-0466.HTML

来源:MISC

链接:https://www.arista.com/en/support/advisories-notices/security-advisories/1174-security-advisory-12

来源:CMS.zone.ci/e/tags/htag.php?tag=Apple target=_blank class=infotextkey>Apple

链接:http://lists.CMS.zone.ci/e/tags/htag.php?tag=Apple target=_blank class=infotextkey>Apple.com/archives/security-announce/2015/Aug/msg00001.HTML

来源:BID

链接:https://www.securityfocus.com/bid/75990

来源:CONFIRM

链接:http://www.oracle.com/technetwork/topics/security/ovmbulletinjul2016-3090546.HTML

来源:FEDORA

链接:http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.HTML

来源:BID

链接:https://www.securityfocus.com/bid/92012

来源:CONFIRM

链接:http://www.oracle.com/technetwork/security-advisory/cpujul2018-4258247.HTML

来源:CONFIRM

链接:http://www.oracle.com/technetwork/security-advisory/cpujul2016-2881720.HTML

来源:CONFIRM

链接:http://kb.juniper.net/InfoCenter/index?page=content&id=jsA10697

来源:SUSE

链接:http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.HTML

受影响实体

• Openbsd Openssh:6.9  

补丁

• auth2-chall