CVE-2002-1550
CVSS4.6
发布时间 :2003-03-31 00:00:00
修订时间 :2008-09-05 16:30:53
NMCOS    

[原文]dump_smutil.sh in IBM AIX allows local users to overwrite arbitrary files via a symlink attack on temporary files.


[CNNVD]IBM dump_smutil.sh不安全临时文件建立漏洞(CNNVD-200303-088)

        
        IBM AIX是一款商业性质UNIX操作系统。
        AIX包含的dump_smutil.sh程序不安全创建临时文件,本地攻击者可以利用这个漏洞通过符号连接攻击破坏系统重要文件,进行拒绝服务攻击。
        问题是由于dump_smutil.sh程序创建临时文件时使用可预测文件名,并以全局可写方式建立,攻击者可以符号连接进行攻击。目前还不清楚是否可用于权限提升攻击。
        

- CVSS (基础分值)

CVSS分值: 4.6 [中等(MEDIUM)]
机密性影响: PARTIAL [很可能造成信息泄露]
完整性影响: PARTIAL [可能会导致系统文件被修改]
可用性影响: PARTIAL [可能会导致性能下降或中断资源访问]
攻击复杂度: LOW [漏洞利用没有访问限制 ]
攻击向量: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
身份认证: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

产品及版本信息(CPE)暂不可用

- OVAL (用于检测的技术细节)

未找到相关OVAL定义

- 官方数据库链接

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2002-1550
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-1550
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200303-088
(官方数据源) CNNVD

- 其它链接及资源

http://archives.neohapsis.com/archives/aix/2002-q4/0002.html
(VENDOR_ADVISORY)  AIXAPAR  IY34617
http://www.securityfocus.com/bid/8802
(UNKNOWN)  BID  8802

- 漏洞信息

IBM dump_smutil.sh不安全临时文件建立漏洞
中危 设计错误
2003-03-31 00:00:00 2005-05-13 00:00:00
本地  
        
        IBM AIX是一款商业性质UNIX操作系统。
        AIX包含的dump_smutil.sh程序不安全创建临时文件,本地攻击者可以利用这个漏洞通过符号连接攻击破坏系统重要文件,进行拒绝服务攻击。
        问题是由于dump_smutil.sh程序创建临时文件时使用可预测文件名,并以全局可写方式建立,攻击者可以符号连接进行攻击。目前还不清楚是否可用于权限提升攻击。
        

- 公告与补丁

        厂商补丁:
        IBM
        ---
        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:
        IBM AIX 5.1:
        IBM APAR IY33055
        
        http://techsupport.services.ibm.com/server/aix.fixdist?whichFix=APAR&fixes=IY33055

- 漏洞信息

7998
IBM AIX dump_smutil.sh Symlink Privilege Escalation
Local Access Required Race Condition
Loss of Integrity
Exploit Public

- 漏洞描述

IBM AIX contains a flaw that may allow a malicious user to overwrite arbitrary files. The issue is triggered when the shell script dump_smutil.sh makes use of a file in /tmp which can point to critical system files. It is possible that the flaw may allow any file to be overwritten resulting in a loss of integrity.

- 时间线

2002-09-26 2002-09-26
Unknow Unknow

- 解决方案

Upgrade to version 4.3.3 (APAR IY34617), 5.1.0 (APAR IY33055), or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

IBM dump_smutil.sh Insecure Temporary File Creation Vulnerability
Design Error 8802
No Yes
2002-09-26 12:00:00 2009-07-11 11:56:00
This vulnerability was reported by IBM.

- 受影响的程序版本

IBM AIX 4.3.3
IBM AIX 5.1

- 漏洞讨论

IBM has reported that the AIX dump_smutil.sh utility may be prone to symlink attacks due to insecure temporary file creation. The precise details regarding this issue are currently unknown, however it is likely that during a specific operation the affected utility places a filename in a world accessible directory using a predictable name. As a result, an attacker may be capable of overwriting an arbitrary system file with the privileges of the utility.

- 漏洞利用

This issue can be exploited through the creation of a malicious symbolic link.

- 解决方案

IBM has released APAR number IY34617 for AIX 4.3.3 and APAR number IY33055 for AIX 5.1.0 to address this issue. Customers are advised to read the referenced advisories for further information pertaining to obtaining and applying an appropriate APAR.


IBM AIX 5.1

IBM AIX 4.3.3

- 相关参考

 

 

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