CVE-2002-2180
CVSS6.8
发布时间 :2002-12-31 00:00:00
修订时间 :2008-09-05 16:32:32
NMCOS    

[原文]The setitimer(2) system call in OpenBSD 2.0 through 3.1 does not properly check certain arguments, which allows local users to write to kernel memory and possibly gain root privileges, possibly via an integer signedness error.


[CNNVD]OpenBSD setitimer(2)内核内存溢出漏洞(CNNVD-200212-776)

        
        OpenBSD报告了一个setitimer(2)系统调用的漏洞,处理有符号整数存在错误,可能允许本地攻击者写内核内存获得root权限。
        其它BSD系统可能存在同样的漏洞。
        <**>

- CVSS (基础分值)

CVSS分值: 6.8 [中等(MEDIUM)]
机密性影响: COMPLETE [完全的信息泄露导致所有系统文件暴露]
完整性影响: COMPLETE [系统完整性可被完全破坏]
可用性影响: COMPLETE [可能导致系统完全宕机]
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: [--]

- CPE (受影响的平台与产品)

cpe:/o:openbsd:openbsd:2.4OpenBSD 2.4
cpe:/o:openbsd:openbsd:2.3OpenBSD 2.3
cpe:/o:openbsd:openbsd:2.0OpenBSD 2.0
cpe:/o:openbsd:openbsd:2.1OpenBSD 2.1
cpe:/o:openbsd:openbsd:3.1OpenBSD 3.1
cpe:/o:openbsd:openbsd:2.8OpenBSD 2.8
cpe:/o:openbsd:openbsd:2.5OpenBSD 2.5
cpe:/o:openbsd:openbsd:2.9OpenBSD 2.9
cpe:/o:openbsd:openbsd:3.0OpenBSD 3.0
cpe:/o:openbsd:openbsd:2.6OpenBSD 2.6
cpe:/o:openbsd:openbsd:2.2OpenBSD 2.2
cpe:/o:openbsd:openbsd:2.7OpenBSD 2.7

- 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-2002-2180
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-2180
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200212-776
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/5861
(VENDOR_ADVISORY)  BID  5861
http://www.openbsd.org/plus32.html
(VENDOR_ADVISORY)  OPENBSD  20021002 Incorrect argument checking in the setitimer(2) system call may allow an attacker to write to kernel memory.
http://www.iss.net/security_center/static/10278.php
(VENDOR_ADVISORY)  XF  openbsd-setitimer-memory-overwrite(10278)
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.0/common/032_kerntime.patch
(PATCH)  CONFIRM  ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.0/common/032_kerntime.patch

- 漏洞信息

OpenBSD setitimer(2)内核内存溢出漏洞
中危 输入验证
2002-12-31 00:00:00 2006-03-03 00:00:00
本地  
        
        OpenBSD报告了一个setitimer(2)系统调用的漏洞,处理有符号整数存在错误,可能允许本地攻击者写内核内存获得root权限。
        其它BSD系统可能存在同样的漏洞。
        <**>

- 公告与补丁

        厂商补丁:
        OpenBSD
        -------
        OpenBSD为OpenBSD 3.1提供了源码补丁:
        OpenBSD Patch 015_kerntime.patch
        ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.1/common/015_kerntime.patch
        按照如下方法打补丁:
        #cd /usr/src
        #patch -p0 < 015_kerntime.patch
        然后重新编译内核。

- 漏洞信息

60108
OpenBSD setitimer(2) System Call Local Privilege Escalation
Local Access Required Input Manipulation
Loss of Integrity Patch / RCS
Vendor Verified

- 漏洞描述

Unknown or Incomplete

- 时间线

2002-10-02 Unknow
Unknow Unknow

- 解决方案

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

OpenBSD setitimer(2) Kernel Memory Overwrite Vulnerability
Input Validation Error 5861
No Yes
2002-10-02 12:00:00 2007-11-03 01:16:00
Reported by OpenBSD.

- 受影响的程序版本

OpenBSD OpenBSD 2.9
OpenBSD OpenBSD 2.8
OpenBSD OpenBSD 2.7
OpenBSD OpenBSD 2.6
OpenBSD OpenBSD 2.5
OpenBSD OpenBSD 2.4
OpenBSD OpenBSD 2.3
OpenBSD OpenBSD 2.2
OpenBSD OpenBSD 2.1
OpenBSD OpenBSD 2.0
OpenBSD OpenBSD 3.1
OpenBSD OpenBSD 3.0

- 漏洞讨论

OpenBSD has reported a vulnerability in the 'setitimer(2)' system call. The vulnerability likely stems from an error in handling signed integers. Exploiting this vulnerability may allow local attackers to write to kernel memory and obtain root privileges.

Other BSD-based operating systems are likely vulnerable.

- 漏洞利用

Core Security Technologies has developed a working commercial exploit for its CORE IMPACT product. This exploit is not otherwise publicly available or known to be circulating in the wild.

- 解决方案

OpenBSD has made available source code patches for OpenBSD 3.1 and 3.0.


OpenBSD OpenBSD 3.0

OpenBSD OpenBSD 3.1

- 相关参考

 

 

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