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IRIX fsr_efs存在符号连接漏洞


发布时间:2002-10-11
更新时间:2002-10-11
严重程度:
威胁程度:本地拒绝服务
错误类型:访问验证错误
利用方式:服务器模式

BUGTRAQ ID:5897

受影响系统
SGI Freeware 1.0
SGI IRIX 6.5
SGI IRIX 6.5.1
SGI IRIX 6.5.2
SGI IRIX 6.5.3
SGI IRIX 6.5.4
SGI IRIX 6.5.5
SGI IRIX 6.5.6
SGI IRIX 6.5.7
SGI IRIX 6.5.8
SGI IRIX 6.5.9
SGI IRIX 6.5.10
SGI IRIX 6.5.11
SGI IRIX 6.5.12
SGI IRIX 6.5.13 m
SGI IRIX 6.5.13
SGI IRIX 6.5.14 m
SGI IRIX 6.5.14
SGI IRIX 6.5.15 m
SGI IRIX 6.5.15
SGI IRIX 6.5.16 m
SGI IRIX 6.5.16
SGI IRIX 6.5.17 m
SGI IRIX 6.5.17
详细描述
IRIX操作系统下的fsr_efs工具存在漏洞。

fsr_efs会把信息写到/var/tmp/.fsrlast文件中,到运行的时候可以进行参考。不过fsr_efs写信息到文件的时候,没有正确进行符号连接检查,可导致攻击者利用符号连接破坏系统文件。

测试代码


解决方案
补丁下载:

SGI Freeware 1.0:
SGI IRIX 6.5:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.1:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.2:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.3:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.4:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.5:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.6:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.7:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.8:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.9:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.10:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.11:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.12:

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.13 m:

SGI Patch patch4771.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.13:

SGI Patch patch4772.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.14 m:

SGI Patch patch4771.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.14:

SGI Patch patch4772.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.15 m:

SGI Patch patch4771.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.15:

SGI Patch patch4772.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.16 m:

SGI Patch patch4771.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.16:

SGI Patch patch4772.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.17 m:

SGI Patch patch4771.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

SGI IRIX 6.5.17:

SGI Patch patch4772.tar
ftp://patches.sgi.com/support/free/security/patches/

SGI Upgrade IRIX 6.5.18
http://www.sgi.com/software/software.html#IRIX

相关信息
参考:http://online.securityfocus.com/advisories/4526