发布时间 :2000-10-20 00:00:00
修订时间 :2008-09-05 16:21:46

[原文]Format string vulnerability in strong.exe program in NAI Net Tools PKI server 1.0 before HotFix 3 allows remote attackers to execute arbitrary code via format strings in a URL with a .XUDA extension.

[CNNVD]NAI Net Tools PKI server strong.exe代码执行漏洞(CNNVD-200010-042)

        NAI Net Tools PKI server 1.0 HotFix 3之前版本的strong.exe存在格式化字符串漏洞。远程攻击者可以借助扩展名为.XUDA的URL格式化字符串执行任意代码。

- CVSS (基础分值)

CVSS分值: 7.5 [严重(HIGH)]
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: [--]
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)


- 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)  BUGTRAQ  20000802 NAI Net Tools PKI Server vulnerabilities

- 漏洞信息

NAI Net Tools PKI server strong.exe代码执行漏洞
高危 格式化字符串
2000-10-20 00:00:00 2005-05-02 00:00:00
        NAI Net Tools PKI server 1.0 HotFix 3之前版本的strong.exe存在格式化字符串漏洞。远程攻击者可以借助扩展名为.XUDA的URL格式化字符串执行任意代码。

- 公告与补丁


- 漏洞信息 (20136)

NAI Net Tools PKI Server 1.0 Format String Vulnerability (EDBID:20136)
windows remote
2000-08-02 Verified
0 Juliano Rizzo
N/A [点击下载]

Certain versions of Network Associates Inc.'s Net Tools PKI (Public Key Infrastructure) server ship with a vulnerability which allows remote attackers to execute arbitrary commands on the system which the PKI server resides. The problem lies within the webserver component of the PKI server (strong.exe) which operates several 'virtual servers' required to operate the PKI server. The first is the Administrative Web Server which listens via TCP port 443, the second is Enrollment Web Server which listens on TCP port 444. Unlike the Administrative Web Server the Enrollment Web Server does not require credentials to be exchanged before a user can talk to the webserver. It is via this virtual server that an attacker can exploit the problem at hand. The following is taken directly from the CORE SDI advisory on this issue:

"User supplied URL's are processed by Strong.exe. If a url with an .XUDA extension is found, the request is forwarded to XUDAD.EXE for further processing. Prior to this "hand-off" the URL string is parsed, filtered for meta characters and passed to a function that logs the request. Somewhere along the processing path, the user supplied data becomes the format string for a formatted output function similar to the ANSI C sprintf(). This allows a remote attacker to provide data that will force that function into overwriting arbitrary portions of the process memory and cause either a denial of service attack or the execution of arbitrary code."

https://host:444/xxx%3c%b9%ff%01%25%25x%25%25x%25%25x%25%25x%25%25x%25\ %25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25\ %25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25\ %25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25%25x%25\ %25x%25%25x%25x%25n.xuda

note: the string has been wrapped for readability. 		

- 漏洞信息

NAI Net Tools PKI Server XUDAD.EXE Execute Arbitrary Code
Remote / Network Access Input Manipulation
Loss of Integrity Patch / RCS
Exploit Public Third-party Verified

- 漏洞描述

Net Tools PKI Server contains a flaw that allows a remote attacker to execute arbitrary code on a vulnerable server. The issue is due to the Strong.exe and XUDAD.EXE not properly sanitizing user input during processing, allowing an attacker to craft a request that will overwrite arbitrary portions of memory allowing a denial of service or code execution.

- 时间线

2000-08-02 Unknow
2000-08-02 Unknow

- 解决方案

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

- 相关参考

- 漏洞作者