NAI Net Tools PKI server strong.exe代码执行漏洞

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漏洞ID 1105948 漏洞类型 格式化字符串
发布时间 2000-08-02 更新时间 2005-05-02
CVE编号 CVE-2000-0741 CNNVD-ID CNNVD-200010-042
漏洞平台 Windows CVSS评分 7.5
|漏洞来源
https://www.exploit-db.com/exploits/20136
http://www.cnnvd.org.cn/web/xxk/ldxqById.tag?CNNVD=CNNVD-200010-042
|漏洞详情
NAINetToolsPKIserver1.0HotFix3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。
|漏洞EXP
source: http://www.securityfocus.com/bid/1538/info

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.
|参考资料

来源:BID
名称:1538
链接:http://www.securityfocus.com/bid/1538
来源:download.nai.com
链接:http://download.nai.com/products/licensed/pgp/hf3pki10.txt
来源:BUGTRAQ
名称:20000802NAINetToolsPKIServervulnerabilities
链接:http://archives.neohapsis.com/archives/bugtraq/2000-07/0473.html
来源:OSVDB
名称:1490
链接:http://www.osvdb.org/1490