发布时间 :2001-08-22 00:00:00
修订时间 :2008-09-10 00:00:00

[原文]lpusers as included with SCO OpenServer 5.0 through 5.0.6 allows a local attacker to gain additional privileges via a buffer overflow attack in the '-u' command line parameter.

[CNNVD]SCO OpenServer lpusers权限许可和访问控制漏洞(CNNVD-200108-125)

        SCO OpenServer 5.0至5.0.6版本包含的lpusers存在漏洞。本地用户可以借助'-u'命令行参数的缓冲区溢出攻击提升额外特权。

- 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]

- CWE (弱点类目)

CWE-119 [内存缓冲区边界内操作的限制不恰当]

- CPE (受影响的平台与产品)


- OVAL (用于检测的技术细节)


- 官方数据库链接
(官方数据源) MITRE
(官方数据源) NVD
(官方数据源) CNNVD

- 其它链接及资源
(VENDOR_ADVISORY)  XF  sco-openserver-lpusers-bo(6292)
(VENDOR_ADVISORY)  BUGTRAQ  20010327 SCO 5.0.6 issues (lpusers)
(UNKNOWN)  BUGTRAQ  20010412 SSE072B: SCO OpenServer revision of buffer overflow fixes

- 漏洞信息

SCO OpenServer lpusers权限许可和访问控制漏洞
中危 缓冲区溢出
2001-08-22 00:00:00 2005-10-20 00:00:00
        SCO OpenServer 5.0至5.0.6版本包含的lpusers存在漏洞。本地用户可以借助'-u'命令行参数的缓冲区溢出攻击提升额外特权。

- 公告与补丁


- 漏洞信息 (20739)

SCO Open Server 5.0.6 lpusers Buffer Overflow Vulnerability (EDBID:20739)
sco dos
2001-03-27 Verified
0 Secure Network Operations
N/A [点击下载]

SCO OpenServer 5.0.6 (and possibly earlier versions) ships with several suid bin executables used in printer administration and related tasks.

This includes lpusers, a component used to set the queue priority of jobs submitted to the LP print service by users.
'lpusers' contains a locally exploitable buffer overflow vulnerability that occurs when commandline arguments are of excessive length.

If properly exploited, this can yield root privilege to the attacker.

/opt/K/SCO/Unix/5.0.6Ga/usr/lib/lpusers -u `perl -e 'print "A" x 700'`

Memory fault - core dumped 		

- 漏洞信息

SCO OpenServer lpusers -u Parameter Local Overflow
Local Access Required Input Manipulation
Loss of Integrity

- 漏洞描述

A local overflow exists in OpenServer. The lpusers command fails to validate user-supplied arguments to the '-u' command-line parameter resulting in a buffer overflow. With a specially crafted request consisting of more than 670 characters, an attacker can cause arbitrary code execution resulting in a loss of integrity.

- 时间线

2001-03-27 Unknow
Unknow Unknow

- 解决方案

Currently, there are no known workarounds or upgrades to correct this issue. However, SCO has released a patch to address this vulnerability.

- 相关参考

- 漏洞作者