CVE-1999-1048
CVSS4.6
发布时间 :1998-09-05 00:00:00
修订时间 :2016-10-17 22:00:40
NMCO    

[原文]Buffer overflow in bash 2.0.0, 1.4.17, and other versions allows local attackers to gain privileges by creating an extremely large directory name, which is inserted into the password prompt via the \w option in the PS1 environmental variable when another user changes into that directory.


[CNNVD]bash缓冲区溢出漏洞(CNNVD-199809-009)

        bash 2.0.0版本、1.4.17版本及其他版本存在缓冲区溢出漏洞。本地攻击者可以通过创建一个极大目录名称来获得根特权,该目录名称通过PS1环境变量中的\w选项在另一个用户兑换该目录时被插入到密码提示符中。

- 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)

cpe:/o:redhat:linux:4.2Red Hat Linux 4.2
cpe:/o:debian:debian_linux:1.3.1Debian Debian Linux 1.3.1

- 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-1999-1048
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-1999-1048
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-199809-009
(官方数据源) CNNVD

- 其它链接及资源

http://marc.info/?l=bugtraq&m=87602746719555&w=2
(UNKNOWN)  BUGTRAQ  19970821 Buffer overflow in /bin/bash
http://www.debian.org/security/1998/19980909
(VENDOR_ADVISORY)  DEBIAN  19980909 problem with very long pathnames
http://www.securityfocus.com/archive/1/10542
(VENDOR_ADVISORY)  BUGTRAQ  19980905 BASH buffer overflow, LiNUX x86 exploit
http://xforce.iss.net/static/3414.php
(VENDOR_ADVISORY)  XF  linux-bash-bo(3414)

- 漏洞信息

bash缓冲区溢出漏洞
中危 缓冲区溢出
1998-09-05 00:00:00 2005-05-02 00:00:00
本地  
        bash 2.0.0版本、1.4.17版本及其他版本存在缓冲区溢出漏洞。本地攻击者可以通过创建一个极大目录名称来获得根特权,该目录名称通过PS1环境变量中的\w选项在另一个用户兑换该目录时被插入到密码提示符中。

- 公告与补丁

        

- 漏洞信息

8345
bash \w option PS1 Environment Variable Overflow
Local Access Required Input Manipulation
Loss of Integrity
Exploit Public

- 漏洞描述

A local overflow exists in bash. The rl_redisplay() function fails to perform proper bounds checking resulting in a buffer overflow. The issue is triggered when creating a overly long directory name containing more than 1024 bytes, which is inserted into the password prompt via the '\w' option in the PS1 environmental variable when another user changes into that directory. It is possible for a malicious user to gain elevated privileges resulting in a loss of integrity.

- 时间线

1998-09-04 Unknow
1998-09-05 Unknow

- 解决方案

Contact your vendor for an appropriate upgrade. An upgrade is required as there are no known workarounds.

- 相关参考

- 漏洞作者

 

 

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