CVE-2000-0375
CVSS2.1
发布时间 :2001-03-12 00:00:00
修订时间 :2008-09-10 15:04:14
NMCO    

[原文]The kernel in FreeBSD 3.2 follows symbolic links when it creates core dump files, which allows local attackers to modify arbitrary files.


[CNNVD]FreeBSD kernel修改任意文件漏洞(CNNVD-200103-049)

        带有符号链接FreeBSD 3.2版本的kernel,当其创建核心转储文件时存在漏洞。本地攻击者修改任意文件。

- CVSS (基础分值)

CVSS分值: 2.1 [轻微(LOW)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: PARTIAL [可能会导致系统文件被修改]
可用性影响: NONE [对系统可用性无影响]
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-2000-0375
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2000-0375
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200103-049
(官方数据源) CNNVD

- 其它链接及资源

http://www.osvdb.org/6084
(UNKNOWN)  OSVDB  6084

- 漏洞信息

FreeBSD kernel修改任意文件漏洞
低危 未知
2001-03-12 00:00:00 2005-05-02 00:00:00
本地  
        带有符号链接FreeBSD 3.2版本的kernel,当其创建核心转储文件时存在漏洞。本地攻击者修改任意文件。

- 公告与补丁

        

- 漏洞信息

6084
FreeBSD Core Dump Symbolic Link Arbitrary File Modification
Local Access Required Race Condition
Loss of Integrity

- 漏洞描述

FreeBSD contains a flaw that may allow a malicious user to gain access to unauthorized privileges. The issue is triggered when the kernel follows a maliciously created symbolic link during its creation of core files using periodic(3), allowing arbitrary file modification. This flaw may lead to a loss of integrity.

- 时间线

1999-09-15 Unknow
Unknow Unknow

- 解决方案

Upgrade to corrected versions 3.2-STABLE or 3.3-RELEASE or higher, as it has been reported to fix this vulnerability. Also, FreeBSD has released a patch. It is also possible to correct the flaw by implementing the following workaround: disable periodic() core dumps by changing core size to zero. # mv /usr/sbin/periodic /usr/sbin/periodic.bin # cat > /usr/sbin/periodic #!/bin/sh ulimit -c 0 /usr/sbin/periodic.bin $* ^D # chmod 555 /usr/sbin/periodic

- 相关参考

- 漏洞作者

Unknown or Incomplete
 

 

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