CVE-2002-0517
CVSS7.2
发布时间 :2002-08-12 00:00:00
修订时间 :2008-09-05 16:28:14
NMCOS    

[原文]Buffer overflow in X11 library (libX11) on Caldera Open UNIX 8.0.0, UnixWare 7.1.1, and possibly other operating systems, allows local users to gain root privileges via a long -xrm argument to programs such as (1) dtterm or (2) xterm.


[CNNVD]Caldera X11库-xrm存在缓冲溢出漏洞(CNNVD-200208-157)

        
        OpenUnix是一款UnixWare派生的Unix操作系统,由Caldera分发和维护。
        OpenUnix中X11库-xrm选项对用户提交数据缺少检查,可导致发生缓冲区溢出。
        任何连接到X11库的程序如果接收-xrm选项,而且用户对此选项提供超长的字符串作为参数,就可以导致程序出现coredump,导致本地攻击者可以利用有此漏洞的程序提升权限。
        

- CVSS (基础分值)

CVSS分值: 7.2 [严重(HIGH)]
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: NONE [漏洞利用无需身份认证]

- CPE (受影响的平台与产品)

cpe:/a:caldera:unixware:7.1.1
cpe:/o:caldera:openunix:8.0

- 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-2002-0517
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-0517
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200208-157
(官方数据源) CNNVD

- 其它链接及资源

http://www.kb.cert.org/vuls/id/169059
(UNKNOWN)  CERT-VN  VU#169059
http://www.securityfocus.com/bid/4502
(VENDOR_ADVISORY)  BID  4502
http://www.iss.net/security_center/static/7282.php
(VENDOR_ADVISORY)  XF  unixware-openunix-dtterm-bo(7282)
http://www.securityfocus.com/archive/1/249106
(VENDOR_ADVISORY)  BUGTRAQ  20020108 dtterm exploit in Unixware 7.1.1
http://www.iss.net/security_center/static/8828.php
(UNKNOWN)  XF  x11-xrm-bo(8828)
http://archives.neohapsis.com/archives/bugtraq/2002-01/0099.html
(UNKNOWN)  BUGTRAQ  20020108 xterm exploit in Unixware 7.0.1
ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15/CSSA-2002-SCO.15.txt
(UNKNOWN)  CALDERA  CSSA-2002-SCO.15

- 漏洞信息

Caldera X11库-xrm存在缓冲溢出漏洞
高危 边界条件错误
2002-08-12 00:00:00 2005-10-20 00:00:00
本地  
        
        OpenUnix是一款UnixWare派生的Unix操作系统,由Caldera分发和维护。
        OpenUnix中X11库-xrm选项对用户提交数据缺少检查,可导致发生缓冲区溢出。
        任何连接到X11库的程序如果接收-xrm选项,而且用户对此选项提供超长的字符串作为参数,就可以导致程序出现coredump,导致本地攻击者可以利用有此漏洞的程序提升权限。
        

- 公告与补丁

        临时解决方法:
        如果您不能立刻安装补丁或者升级,CNNVD建议您采取以下措施以降低威胁:
        * 暂时没有合适的临时解决方法。
        厂商补丁:
        Caldera
        -------
        Caldera已经为此发布了一个安全公告(CSSA-2002-SCO.15)以及相应补丁:
        CSSA-2002-SCO.15:Open UNIX 8.0.0 UnixWare 7.1.1 : Buffer overflow in libX11 with -xrm
        链接:ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15
        补丁下载:
        Caldera UnixWare 7.1.1:
        Caldera Patch basex.711b.pkg
        ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15
        Caldera OpenUnix 8.0:
        Caldera Patch basex.711b.pkg
        ftp://stage.caldera.com/pub/security/openunix/CSSA-2002-SCO.15
        下载后使用MD5进行验证:
        MD5 (basex.711b.pkg) = 237963c02165609b41f33d6de50279c5
        MD5 (basex.711b.pkg) = 237963c02165609b41f33d6de50279c5
        然后在/var/spool/pkg目录进行安装:
        # pkgadd -d /var/spool/pkg/basex.711b.pkg
        # pkgadd -d /var/spool/pkg/basex.711b.pkg

- 漏洞信息

9334
Open UNIX/UnixWare X11 Library Local Overflow
Input Manipulation
Loss of Integrity

- 漏洞描述

Unknown or Incomplete

- 时间线

2002-04-11 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

Caldera X11 Library -xrm Buffer Overflow Vulnerability
Boundary Condition Error 4502
No Yes
2002-04-11 12:00:00 2009-07-11 11:56:00
Vulnerability announced in a Caldera Security Advisory.

- 受影响的程序版本

Caldera UnixWare 7.1.1
Caldera OpenUnix 8.0

- 漏洞讨论

OpenUnix is a derivative of UnixWare, both Unix Operating System derivatives distributed and maintained by Caldera.

Under some circumstances, it is possible to take advantage of a buffer overflow that may yield elevated privileges. Programs that have been linked against the vulnerable X11 library do not perform proper bounds checking when the -xrm flag is used. This could allow the overwriting of stack variables, including the return address, and code execution.

- 漏洞利用

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com <mailto:vuldb@securityfocus.com>.

- 解决方案

Fixes available:


Caldera UnixWare 7.1.1

Caldera OpenUnix 8.0

- 相关参考

     

     

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