安全研究
安全漏洞
Todd Miller Sudo本地权限提升漏洞
发布日期：2005-10-26
更新日期：2005-10-26
受影响系统：
Todd Miller Sudo 1.6.8p9描述：
Todd Miller Sudo 1.6.8p8
Todd Miller Sudo 1.6.8p7
Todd Miller Sudo 1.6.8p5
Todd Miller Sudo 1.6.8p1
Todd Miller Sudo 1.6.8
Todd Miller Sudo 1.6.7p5
Todd Miller Sudo 1.6.7
Todd Miller Sudo 1.6.6
Todd Miller Sudo 1.6.5p2
Todd Miller Sudo 1.6.5p1
Todd Miller Sudo 1.6.5
Todd Miller Sudo 1.6.4p2
Todd Miller Sudo 1.6.4p1
Todd Miller Sudo 1.6.4
Todd Miller Sudo 1.6.3p7
Todd Miller Sudo 1.6.3p6
Todd Miller Sudo 1.6.3p5
Todd Miller Sudo 1.6.3p4
Todd Miller Sudo 1.6.3p3
Todd Miller Sudo 1.6.3p2
Todd Miller Sudo 1.6.3p1
Todd Miller Sudo 1.6.3
Todd Miller Sudo 1.6.2
Todd Miller Sudo 1.6.1
Todd Miller Sudo 1.6
BUGTRAQ ID: 15191
CVE(CAN) ID: CVE-2005-2959
Sudo是一款允许用户以其他用户权限安全的执行命令的程序，广泛使用在Linux和Unix操作系统下。
Sudo中存在本地权限提升漏洞，有一定权限的本地用户可能利用此漏洞以高权限执行任意系统命令。
Sudo不能充分的过滤环境变量。SHELLOPTS和PS4变量都是危险的变量，但仍传递给了以特权用户运行的程序。这可能导致在执行bash脚本时以特权用户的权限执行任意命令。请注意仅有获得了受限超级用户权限的攻击者才可以利用这些漏洞。
<*来源：Tavis Ormandy （taviso@gentoo.org）
链接：http://www.debian.org/security/2005/dsa-870
*>
建议：
厂商补丁：
Debian
------
Debian已经为此发布了一个安全公告（DSA-870-1）以及相应补丁:
DSA-870-1：New sudo packages fix arbitrary command execution
链接：http://www.debian.org/security/2005/dsa-870
补丁下载：
Source archives:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4.dsc
Size/MD5 checksum: 587 c22d78e545cc41285b70e928baf5ef2a
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4.diff.gz
Size/MD5 checksum: 12353 49b036195d8797105cc48b77343409df
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6.orig.tar.gz
Size/MD5 checksum: 333074 4da4bf6cf31634cc7a17ec3b69fdc333
Alpha architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_alpha.deb
Size/MD5 checksum: 151570 03fce4fe476ae16b4672dab579d5fd69
ARM architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_arm.deb
Size/MD5 checksum: 141524 9337ba4f86b1bfc23b9c0ac43831e5b8
Intel IA-32 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_i386.deb
Size/MD5 checksum: 134978 ad3fa7172bdf1367bcb7ffada5fe8bd1
Intel IA-64 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_ia64.deb
Size/MD5 checksum: 172532 a37d469d4b88fbf61ffcf2bfe2ba2ac9
HP Precision architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_hppa.deb
Size/MD5 checksum: 147642 48ee191d753ce8231406383ddfeca83b
Motorola 680x0 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_m68k.deb
Size/MD5 checksum: 132792 661352760c71a856734ed98cf59718f8
Big endian MIPS architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_mips.deb
Size/MD5 checksum: 144444 8bd20f7ef341e7b4210bf83888288817
Little endian MIPS architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_mipsel.deb
Size/MD5 checksum: 144320 65cd1110ea9d0a24cfd42a963c2e932c
PowerPC architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_powerpc.deb
Size/MD5 checksum: 140708 d46cca27fddf5ba89b3a7ccbce87bfd8
IBM S/390 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_s390.deb
Size/MD5 checksum: 140294 c2b73dd934d2852bd97395021b82bcb1
Sun Sparc architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.6-1.4_sparc.deb
Size/MD5 checksum: 143106 7fe864a335c9f438765cedb78b602695
Debian GNU/Linux 3.1 alias sarge
- --------------------------------
Source archives:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2.dsc
Size/MD5 checksum: 571 ee704f9a7147f4af70b7f98c03fe63ca
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2.diff.gz
Size/MD5 checksum: 20291 85b39fe73ce73b17f89077f5baff1061
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7.orig.tar.gz
Size/MD5 checksum: 585302 ad65d24f20c736597360d242515e412c
Alpha architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_alpha.deb
Size/MD5 checksum: 176516 f3d8c031b827697735e1fb4c6b30aa05
AMD64 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_amd64.deb
Size/MD5 checksum: 169978 13c5fb4e10b152a0b8c304c9b5070f33
ARM architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_arm.deb
Size/MD5 checksum: 163528 08b9302954e490b86915ba1c77ad2e95
Intel IA-32 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_i386.deb
Size/MD5 checksum: 159618 b96c7e49de019a22e63b146108d373b2
Intel IA-64 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_ia64.deb
Size/MD5 checksum: 195042 ea11fb9d63c42cd5e987cbc426b2d850
HP Precision architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_hppa.deb
Size/MD5 checksum: 170464 db7b10db7027d76e9db541e1ecfdf3c5
Motorola 680x0 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_m68k.deb
Size/MD5 checksum: 154890 984de6ffe0c4148eb4ec2524be48ec93
Big endian MIPS architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_mips.deb
Size/MD5 checksum: 168394 2915f237172414cd34d5a5f9d7bf9f52
Little endian MIPS architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_mipsel.deb
Size/MD5 checksum: 168296 1a69c185ad41d450e4cb0ee593e53779
PowerPC architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_powerpc.deb
Size/MD5 checksum: 165140 4cef8bdb04fb8c91a69d93a41f14a449
IBM S/390 architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_s390.deb
Size/MD5 checksum: 167986 ef2691f0af99039da331c7cc68136a06
Sun Sparc architecture:
http://security.debian.org/pool/updates/main/s/sudo/sudo_1.6.8p7-1.2_sparc.deb
Size/MD5 checksum: 162382 897dd50a90835ff5ffeaa34a6d499506
补丁安装方法：
1. 手工安装补丁包：
首先，使用下面的命令来下载补丁软件：
# wget url (url是补丁下载链接地址)
然后，使用下面的命令来安装补丁：
# dpkg -i file.deb (file是相应的补丁名)
2. 使用apt-get自动安装补丁包：
首先，使用下面的命令更新内部数据库：
# apt-get update
然后，使用下面的命令安装更新软件包：
# apt-get upgrade
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