CVE-2002-0432
CVSS10.0
发布时间 :2002-07-26 00:00:00
修订时间 :2008-09-05 16:28:00
NMCOS    

[原文]Buffer overflow in (1) lprintf and (2) cprintf in sysdep.c of Citadel/UX 5.90 and earlier allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via attacks such as a long HELO command to the SMTP server.


[CNNVD]Citadel/UX SMTP服务拒绝服务攻击漏洞(CNNVD-200207-096)

        
        Citadel/UX是一款开放源代码的BBS程序,使用在Linux、BSD、Solaris和其他Unix系统平台上,最近的Citadel/UX版本包含对Email的支持,可以通过POP3、IMAP、SMTP进行通信。
        Citadel/UX在SMTP实现中存在漏洞,可以导致远程攻击者进行拒绝服务攻击。
        当连接到Citadel/UX的SMTP服务程序,并提交包含超长字节参数的HELO命令给SMTP服务器,可导致缓冲溢出,堆栈内存被破坏,产生拒绝服务攻击,也存在执行任意代码的可能。
        早期的Citadel/UX版本也存在这个漏洞。
        

- 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)

产品及版本信息(CPE)暂不可用

- 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-2002-0432
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-0432
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200207-096
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/4263
(VENDOR_ADVISORY)  BID  4263
http://www.iss.net/security_center/static/8426.php
(VENDOR_ADVISORY)  XF  citadel-helo-bo(8426)
http://uncensored.citadel.org/pub/citadel/citadel-ux-5.91.tar.gz
(UNKNOWN)  CONFIRM  http://uncensored.citadel.org/pub/citadel/citadel-ux-5.91.tar.gz
http://online.securityfocus.com/archive/1/260934
(VENDOR_ADVISORY)  BUGTRAQ  20020309 Citadel/UX Server Remote DoS attack Vulnerability

- 漏洞信息

Citadel/UX SMTP服务拒绝服务攻击漏洞
危急 边界条件错误
2002-07-26 00:00:00 2006-08-28 00:00:00
远程  
        
        Citadel/UX是一款开放源代码的BBS程序,使用在Linux、BSD、Solaris和其他Unix系统平台上,最近的Citadel/UX版本包含对Email的支持,可以通过POP3、IMAP、SMTP进行通信。
        Citadel/UX在SMTP实现中存在漏洞,可以导致远程攻击者进行拒绝服务攻击。
        当连接到Citadel/UX的SMTP服务程序,并提交包含超长字节参数的HELO命令给SMTP服务器,可导致缓冲溢出,堆栈内存被破坏,产生拒绝服务攻击,也存在执行任意代码的可能。
        早期的Citadel/UX版本也存在这个漏洞。
        

- 公告与补丁

        临时解决方法:
        如果您不能立刻安装补丁或者升级,CNNVD建议您采取以下措施以降低威胁:
        --- citadel-old/sysdep.c Sat Dec 8 12:31:44
        2001
        +++ citadel/sysdep.c Sat Mar 9 05:51:11
        2002
        @@ -106,7 +106,7 @@
         char buf[4096];
        
         va_start(arg_ptr, format);
        - vsprintf(buf, format, arg_ptr);
        + vsnprintf(buf, sizeof(buf), format, arg_ptr);
         va_end(arg_ptr);
        
         if (loglevel <= verbosity) {
        厂商补丁:
        Citadel/UX
        ----------
        目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本:
        
        http://uncnsrd.mt-kisco.ny.us/citadel/

- 漏洞信息

12345
Citadel/UX sysdep.c Multiple Function Remote Overflow
Remote / Network Access Input Manipulation
Loss of Integrity

- 漏洞描述

Unknown or Incomplete

- 时间线

2002-03-09 Unknow
Unknow Unknow

- 解决方案

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Citadel/UX SMTP Server Buffer Overflow Vulnerability
Boundary Condition Error 4263
Yes No
2002-03-09 12:00:00 2009-07-11 11:56:00
Discovered by xperc <xperc@hotmail.com>.

- 受影响的程序版本

Citadel/UX Citadel/UX 5.90

- 漏洞讨论

Citadel/UX is an open source BBS package for Linux, BSD, Solaris and other Unix systems. Recent versions of Citadel/UX include support for email, and can communicate via POP3, IMAP and SMTP.

A vulnerability has been reported in the SMTP support included in some versions of Citadel/UX. When intially connecting to the SMTP server, including an oversized parameter with the HELO command will cause a buffer overflow condition. Stack memory will be corrupted, leading to a denial of service attack. It may be possible to exploit this vulnerability to execute arbitrary code. This has not been confirmed.

Earlier versions of Citadel/UX may share this vulnerability.

- 漏洞利用

Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com &lt;mailto:vuldb@securityfocus.com&gt;.

- 解决方案

The following patch has been suggested by xperc <xperc@hotmail.com>:

--- citadel-old/sysdep.c Sat Dec 8 12:31:44
2001
+++ citadel/sysdep.c Sat Mar 9 05:51:11
2002
@@ -106,7 +106,7 @@
char buf[4096];

va_start(arg_ptr, format);
- vsprintf(buf, format, arg_ptr);
+ vsnprintf(buf, sizeof(buf), format, arg_ptr);
va_end(arg_ptr);

if (loglevel <= verbosity) {

Currently the SecurityFocus staff are not aware of any vendor-supplied patches for this issue. If you feel we are in error or are aware of more recent information, please mail us at: vuldb@securityfocus.com <mailto:vuldb@securityfocus.com>.

- 相关参考

     

     

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