VMware产品Trap Flag处理本地权限提升漏洞

BUGTRAQ ID: 32168
CVE(CAN) ID: CVE-2008-4915

VMWare是一款虚拟PC软件，允许在一台机器上同时运行两个或多个Windows、DOS、LINUX系统。

VMWare在处理指令的执行时存在问题，攻击者可能利用此漏洞提升自己的权限。如果在设置了Trap Flag的情况下出现中断，正确的CPU将执行转移到中断处理器之前会清除Trap Flag。对于受影响的VMware版本，如果内核态IRET设置了Trap Flag的话，则在执行单字节INT 3指令的时候Trap Flag在模式切换后仍继续存在，这造成的结果就是如果能够导致内核通过IRET设置Trap Flag的话，用户态代码在遇到INT 3断点（#BP）处理器的第一个指令的话会导致出现单步调试trap（#DB）。

VMWare Workstation 6.0.x
VMWare Workstation 5.x
VMWare ACE 2.0.x
VMWare ACE 1.x
VMWare Player 2.0.x
VMWare Player 1.x
VMWare Server 1.x
VMWare ESX 3.5
VMWare ESX 3.0.3
VMWare ESX 3.0.2
VMWare ESX 3.0.1
VMWare ESXi 3.5
VMWare

目前厂商已经发布了升级补丁以修复这个安全问题，请到厂商的主页下载：

VMware Workstation 5.5.9

<a href=“http://www.vmware.com/download/ws/ws5.html” target=“_blank”>http://www.vmware.com/download/ws/ws5.html</a>
Release notes:
<a href=“http://www.vmware.com/support/ws55/doc/releasenotes_ws55.html” target=“_blank”>http://www.vmware.com/support/ws55/doc/releasenotes_ws55.html</a>

Windows binary:
md5sum: 509c7b323a8ac42c0a92b0a1446bb0f8

Compressed Tar archive for 32-bit Linux
md5sum: 9d189e72f8111e44b27f1ee92edf265e

Linux RPM version for 32-bit Linux
md5sum: 0957c5258d033d0107517df64bfea240

VMware Player 1.0.9

<a href=“http://www.vmware.com/download/player/” target=“_blank”>http://www.vmware.com/download/player/</a>
Release notes Player 1.x:
<a href=“http://www.vmware.com/support/player/doc/releasenotes_player.html” target=“_blank”>http://www.vmware.com/support/player/doc/releasenotes_player.html</a>

Windows binary
md5sum: e2c8dd7b27df7d348f14f69de017b93f

Player 1.0.9 for Linux (.rpm)
md5sum: 471c3881fa60b058b1dac1d3c9c32c85

Player 1.0.9 for Linux (.tar)
md5sum: bef507811698e7333f5e8cb672530dbf

VMware ACE 1.0.8

<a href=“http://www.vmware.com/download/ace/” target=“_blank”>http://www.vmware.com/download/ace/</a>
Release notes:
<a href=“http://www.vmware.com/support/ace/doc/releasenotes_ace.html” target=“_blank”>http://www.vmware.com/support/ace/doc/releasenotes_ace.html</a>

Windows binary
md5sum: 920a08c2fcdeaedcb3258183817419a0

ACE 1.0.8 for Linux (.rpm)
md5sum: 450254b73fa6802713136bf2c04e5b40

ACE 1.0.8 for Linux (.tar)
md5sum: 5efdaccf8217b8d7875d3f35cd6159e0

VMware Server 1.0.8

<a href=“http://www.vmware.com/download/server/” target=“_blank”>http://www.vmware.com/download/server/</a>
Release notes:
<a href=“http://www.vmware.com/support/server/doc/releasenotes_server.html” target=“_blank”>http://www.vmware.com/support/server/doc/releasenotes_server.html</a>

VMware Server for Windows 32-bit and 64-bit
md5sum: 4ba41e5fa192f786121a7395ebaa8d7c

VMware Server Windows client package
md5sum: f25746e275ca00f28d44ad372fc92536

VMware Server for Linux
md5sum: a476d3953ab1ff8457735e692fa5edf9

VMware Server for Linux rpm
md5sum: af6890506618fa82928fbfba8a5f97e1

Management Interface
md5sum: 5982b84a39479cabce63e12ab664d369

VMware Server Linux client package
md5sum: 605d7db48f63211cc3f5ddb2b3f915a6

ESXi

ESXi 3.5 patch ESXe350-200810401-O-UG
<a href=“http://download3.vmware.com/software/vi/ESXe350-200810401-O-UG.zip” target=“_blank”>http://download3.vmware.com/software/vi/ESXe350-200810401-O-UG.zip</a>
md5sum: 9b83c54a005572bebb86652e3efd732a
<a href=“http://kb.vmware.com/kb/1007056” target=“_blank”>http://kb.vmware.com/kb/1007056</a>

ESX

ESX Server 3.5 update 3 CD image Refresh
md5sum: e9bdaad2d37872820a4cad8e8dbde536
<a href=“http://www.vmware.com/download/download.do?downloadGroup=ESX350U3” target=“_blank”>http://www.vmware.com/download/download.do?downloadGroup=ESX350U3</a>

ESX Server 3.5 upgrade package from ESX Server 2.x to ESX Server 3.5
Update 3 Refresh
md5sum:2da08fed15bd4b1ed5b19433e837591c
<a href=“http://www.vmware.com/download/download.do?downloadGroup=ESX350U3” target=“_blank”>http://www.vmware.com/download/download.do?downloadGroup=ESX350U3</a>

ESX Server 3.5 upgrade package from ESX Server 3.0.x to ESX Server 3.5
Update 3 Refresh
md5sum:d631aa8418d99fce4280fc3905ac4c37
<a href=“http://www.vmware.com/download/download.do?downloadGroup=ESX350U3” target=“_blank”>http://www.vmware.com/download/download.do?downloadGroup=ESX350U3</a>

ESX Server 3.5 upgrade package from ESX Server 3.5 to ESX Server 3.5
Update 3 Refresh
md5sum:4dea5d943d0c0469c397b6520dfeb0fb
<a href=“http://www.vmware.com/download/download.do?downloadGroup=ESX350U3” target=“_blank”>http://www.vmware.com/download/download.do?downloadGroup=ESX350U3</a>

ESX 3.5 patch ESX350-200810201-UG (vCPU/directory traversal)
<a href=“http://download3.vmware.com/software/vi/ESX350-200810201-UG.zip” target=“_blank”>http://download3.vmware.com/software/vi/ESX350-200810201-UG.zip</a>
md5sum: 6f26f985d9fea520ebdda7c65b60486e
<a href=“http://kb.vmware.com/kb/1007041” target=“_blank”>http://kb.vmware.com/kb/1007041</a>

ESX 3.0.3 patch ESX303-200810501-BG (vCPU)
<a href=“http://download3.vmware.com/software/vi/ESX303-200810501-BG.zip” target=“_blank”>http://download3.vmware.com/software/vi/ESX303-200810501-BG.zip</a>
md5sum: da72f475c5ac038379d712d36307e33d
<a href=“http://kb.vmware.com/kb/1006969” target=“_blank”>http://kb.vmware.com/kb/1006969</a>

ESX 3.0.2 patch ESX-1006680 (vCPU)
<a href=“http://download3.vmware.com/software/vi/ESX-1006680.tgz” target=“_blank”>http://download3.vmware.com/software/vi/ESX-1006680.tgz</a>
md5sum: 8186a2e77bc7c0e4cd5b214d0a5d29c0
<a href=“http://kb.vmware.com/kb/1006680” target=“_blank”>http://kb.vmware.com/kb/1006680</a>

VMware ESX 2.5.5 Upgrade Patch 10
<a href=“http://download3.vmware.com/software/esx/esx-2.5.5-119702-upgrade.tar.gz” target=“_blank”>http://download3.vmware.com/software/esx/esx-2.5.5-119702-upgrade.tar.gz</a>
md5sum: 2ee87cdd70b1ba84751e24c0bd8b4621
<a href=“http://vmware.com/support/esx25/doc/esx-255-200810-patch.html” target=“_blank”>http://vmware.com/support/esx25/doc/esx-255-200810-patch.html</a>

VMware ESX 2.5.4 Upgrade Patch 21
<a href=“http://download3.vmware.com/software/esx/esx-2.5.4-119703-upgrade.tar.gz” target=“_blank”>http://download3.vmware.com/software/esx/esx-2.5.4-119703-upgrade.tar.gz</a>
md5sum: d791be525c604c852a03dd7df0eabf35
<a href=“http://vmware.com/support/esx25/doc/esx-254-200810-patch.html” target=“_blank”>http://vmware.com/support/esx25/doc/esx-254-200810-patch.html</a>