发布时间 :2001-10-18 00:00:00
修订时间 :2008-09-05 16:24:54

[原文]Buffer overflow in rpc.yppasswdd (yppasswd server) in Solaris 2.6, 7 and 8 allows remote attackers to gain root access via a long username.

[CNNVD]Solaris rpc.yppasswdd (yppasswd server)缓冲区溢出漏洞(CNNVD-200110-064)

        Solaris 2.6,7和8版本中rpc.yppasswdd (yppasswd server)存在缓冲区溢出漏洞。远程攻击者借助超长用户名获取根访问权限。

- CVSS (基础分值)

CVSS分值: 10 [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: [--]
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)


- OVAL (用于检测的技术细节)

oval:org.mitre.oval:def:56Solaris 8 rpc.yppasswdd Buffer Overrun Vulnerability
oval:org.mitre.oval:def:102Solaris 7 rpc.yppasswdd Buffer Overrun Vulnerability

- 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  solaris-yppasswd-bo(6629)
(VENDOR_ADVISORY)  BUGTRAQ  20011004 Patches for Solaris rpc.yppasswdd available
(VENDOR_ADVISORY)  BUGTRAQ  20010528 solaris 2.6, 7 yppasswd vulnerability
(UNKNOWN)  SUN  00209

- 漏洞信息

Solaris rpc.yppasswdd (yppasswd server)缓冲区溢出漏洞
危急 缓冲区溢出
2001-10-18 00:00:00 2005-05-02 00:00:00
        Solaris 2.6,7和8版本中rpc.yppasswdd (yppasswd server)存在缓冲区溢出漏洞。远程攻击者借助超长用户名获取根访问权限。

- 公告与补丁


- 漏洞信息 (20879)

OpenServer 5.0.5/5.0.6,HP-UX 10/11,Solaris 2.6/7.0/8 rpc.yppasswdd Buffer Overrun (EDBID:20879)
unix remote
2001-05-10 Verified
0 metaray
N/A [点击下载]

The rpc.yppasswdd server is used to handle password change requests from yppasswd and modify the NIS password file.

A buffer overrun vulnerability has been discovered in the rpc.yppasswdd utility distributed by multiple vendors. The problem occurs due to insufficient bounds checking before copying remotely-supplied user information into a static memory buffer. As a result, a malicious user may be capable of exploiting this issue to overwrite sensitive locations in memory and thus execute arbitrary code with superuser privileges.		

- 漏洞信息

Solaris rpc.yppasswdd username Remote Overflow
Remote / Network Access Input Manipulation
Loss of Integrity
Exploit Public, Exploit Commercial

- 漏洞描述

This host is running the 'yppasswd' RPC service. This service handles password change requests and updates the NIS password file. This service contains a buffer overflow that allows an attacker to execute arbitrary code on this host. An attacker can use this to gain access to this host.

- 时间线

2001-05-10 Unknow
2001-05-10 Unknow

- 解决方案

This RPC service is usually installed on Sun Solaris. Please upgrade to that latest version of 'yppasswd' available from Sun Solaris 2.6_x86: Sun Patch 106304-03 Sun Solaris 2.6:v: Sun Patch 106303-03 Sun Solaris 7.0_x86: Sun Patch 111591-02 Sun Solaris 7.0: Sun Patch 111590-02 Sun Solaris 8.0_x86: Sun Patch 111597-02 Sun Solaris 8.0: Sun Patch 111596-02

- 相关参考

- 漏洞作者

Unknown or Incomplete