发布日期：2003-02-04
更新日期：2003-02-10

受影响系统：

inter7 Courier-IMAP 1.6
Double Precision Incorporated Courier MTA 0.37.3
    - Debian Linux 3.0 alpha
    - Debian Linux 3.0 IA-32
    - Debian Linux 3.0 arm
    - Debian Linux 3.0 powerpc
    - Debian Linux 3.0 68k
    - Debian Linux 3.0 i386
    - Debian Linux 3.0 sparc

不受影响系统：

inter7 Courier-IMAP 1.7

描述：

---

BUGTRAQ  ID: 6738
CVE(CAN) ID: CVE-2003-0040

Courier-IMAP是一个提供IMAP协议访问Maildir的邮件服务程序。

Courier-IMAP在验证阶段不充分过滤用户提供的用户名数据，远程攻击者可以利用这个漏洞进行SQL注入攻击，破坏数据库。

Courier-IMAP中的PostgreSQL_auth验证模块存在漏洞，在把用户名传递给PostgreSQL引擎的时候，没有充分过滤恶意字符，攻击者可以在用户名中插入任意SQL命令，更改原来的SQL逻辑，导致获得数据库敏感信息，或者进行其他数据库破坏等恶意活动。

<*来源：Courier-IMAP
  
  链接：http://www.debian.org/security/2003/dsa-247
*>

建议：

---

厂商补丁：

Debian
------
Debian已经为此发布了一个安全公告（DSA-247-1）以及相应补丁:
DSA-247-1：New courier packages fix SQL injection
链接：http://www.debian.org/security/2003/dsa-247

补丁下载：

Source archives:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3.dsc
Size/MD5 checksum:      846 06c98336ee0e40813eac24cb59574de8
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3.diff.gz
Size/MD5 checksum:    12649 bac28bb29418f9d965aedeb819876ebc
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3.orig.tar.gz
Size/MD5 checksum:  3238268 f5f742679ac97906fc306763e08e1ed8

Alpha architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_alpha.deb
Size/MD5 checksum:    43286 d73b6054896137f6593a4b438da54fdc
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_alpha.deb
Size/MD5 checksum:     9970 f8141363587679a4badc7c1c7e714751
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_alpha.deb
Size/MD5 checksum:     7700 6b774c8584957bee71f0cf4f66aac69a
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_alpha.deb
Size/MD5 checksum:     9748 d75800272a41656b4324131a8de3a47c
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_alpha.deb
Size/MD5 checksum:    93626 7cb6a750dfcd12d70cc792d6c0c25e44

ARM architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_arm.deb
Size/MD5 checksum:    31688 76f041c97200593230de7d75b74a27fa
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_arm.deb
Size/MD5 checksum:     9982 0391cd8403375b732364729533195baa
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_arm.deb
Size/MD5 checksum:     7710 39351976e1843f6c376864d578c88f8a
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_arm.deb
Size/MD5 checksum:     9762 c012baa4e698f48e6e74562f6f626d83
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_arm.deb
Size/MD5 checksum:    85796 b9ef96842ea07aa90f55e5ed9a22fcc6

Intel IA-32 architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_i386.deb
Size/MD5 checksum:    31702 06f4eb45fef2f3bdc3240489e54ddb94
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_i386.deb
Size/MD5 checksum:     9986 584fe5ff49d360476ebf7ae799f55d78
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_i386.deb
Size/MD5 checksum:     7702 3deb08407cafe11d7f6560992aab1548
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_i386.deb
Size/MD5 checksum:     9754 8281e82d5e9a586d9f7c65e56cdb9d5e
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_i386.deb
Size/MD5 checksum:    85934 88583de865d2a8a71642c573a581b37c

Intel IA-64 architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_ia64.deb
Size/MD5 checksum:    52488 9f27903c254017232f683d241291554a
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_ia64.deb
Size/MD5 checksum:     9966 c7892d31d784570e0b850f830de54b7a
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_ia64.deb
Size/MD5 checksum:     7702 432d440f8eed3064669685ba2137e675
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_ia64.deb
Size/MD5 checksum:     9744 16db3ffd78cf03be43f42d3dbad42abd
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_ia64.deb
Size/MD5 checksum:    99776 b4ad9bfa2138c815e6ef0bdce451ad1f

HP Precision architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_hppa.deb
Size/MD5 checksum:    38698 6354e42a8825547180e1d72ce88d4411
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_hppa.deb
Size/MD5 checksum:     9988 a3840b6d07ecbbb331013b2974793f9b
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_hppa.deb
Size/MD5 checksum:     7718 2814bb4c2ba66acfd115592696e11c20
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_hppa.deb
Size/MD5 checksum:     9760 fd04955f15e8bcbe9beedaafd63451d4
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_hppa.deb
Size/MD5 checksum:    89728 5790238a67c16dddad04cc4dedc59402

Motorola 680x0 architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_m68k.deb
Size/MD5 checksum:    30386 d9371b8ca860a6c8cc528398d443dc24
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_m68k.deb
Size/MD5 checksum:     9996 3f02bfe83fd648b29334f5ba13ef935a
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_m68k.deb
Size/MD5 checksum:     7726 43da03e0fb11e24d1a7942594caa2755
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_m68k.deb
Size/MD5 checksum:     9782 258b1435fb6e52dd6dc9aacbe316a37e
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_m68k.deb
Size/MD5 checksum:    84936 7d4b51710a752d7f6a53e75b90485441

Big endian MIPS architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_mips.deb
Size/MD5 checksum:    37616 d1d9383cbba7b1051729d82a27923808
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_mips.deb
Size/MD5 checksum:     9988 acd934a8f93dac2ea887fd86394e24d8
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_mips.deb
Size/MD5 checksum:     7708 0297eb5910e632c7c06541aaca5773a3
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_mips.deb
Size/MD5 checksum:     9760 56a6a6b1c5ba18de262805bbb286a4ae
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_mips.deb
Size/MD5 checksum:    89832 c5195e55151d73bb957aa1a438a44580

Little endian MIPS architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_mipsel.deb
Size/MD5 checksum:    37664 ca340f34aa9ca4f4d4dca605c07a65ce
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_mipsel.deb
Size/MD5 checksum:     9994 262df132d4996cac3011e6721da75864
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_mipsel.deb
Size/MD5 checksum:     7718 185ff2b06601d9be54ff24ff9970b7c8
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_mipsel.deb
Size/MD5 checksum:     9768 cf246ff96396e47d46bbb93051aa2352
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_mipsel.deb
Size/MD5 checksum:    89710 dd9288abb1040c1e7abfcd60d77853e3

PowerPC architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_powerpc.deb
Size/MD5 checksum:    34250 18d79adacdd40dc28c0a98b935123a44
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_powerpc.deb
Size/MD5 checksum:     9984 7fabecb34944b6c91c3d715828ff1c29
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_powerpc.deb
Size/MD5 checksum:     7702 7879e85df4b5784d88e4d399151376ce
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_powerpc.deb
Size/MD5 checksum:     9762 8bc79b825932c9fc610eb0da1a0ae363
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_powerpc.deb
Size/MD5 checksum:    87626 e35e6dfcae22dc627323bc1c0b9a708c

IBM S/390 architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_s390.deb
Size/MD5 checksum:    32818 57a6010ead7b7198e3821d1ecc59b3f7
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_s390.deb
Size/MD5 checksum:     9978 db8df580e4191d72f6816ec16e08e31b
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_s390.deb
Size/MD5 checksum:     7704 5b27db7bc128e9321bbe3e5ba6e73bc7
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_s390.deb
Size/MD5 checksum:     9756 a12f26e225fa2afe304177a0fc3628ec
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_s390.deb
Size/MD5 checksum:    87528 59e1740f6ef624130ff3e27ed81b92d4

Sun Sparc architecture:

http://security.debian.org/pool/updates/main/c/courier-ssl/courier-authpostgresql_0.37.3-3.3_sparc.deb
Size/MD5 checksum:    32670 f44e6c6b05e3b4eb5badaa0c02b982fb
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-imap-ssl_1.4.3-3.3_sparc.deb
Size/MD5 checksum:     9980 da61d5ef0adf05de8a8f336630c4b42b
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-mta-ssl_0.37.3-3.3_sparc.deb
Size/MD5 checksum:     7710 16c0477e0c3c5143e0b78824b16ca986
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-pop-ssl_0.37.3-3.3_sparc.deb
Size/MD5 checksum:     9758 1aff618c6a6547f6ad4a2f425d65ed48
http://security.debian.org/pool/updates/main/c/courier-ssl/courier-ssl_0.37.3-3.3_sparc.deb
Size/MD5 checksum:    89076 12602177603319651d1084cd86edbebf

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

inter7
------
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：

Inter7 Upgrade Courier-IMAP 1.7.0
http://www.inter7.com/courierframe.html

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