CVE-2002-1095
CVSS5.0
发布时间 :2002-10-04 00:00:00
修订时间 :2008-09-05 16:29:45
NMCOS    

[原文]Cisco VPN 3000 Concentrator before 2.5.2(F), with encryption enabled, allows remote attackers to cause a denial of service (reload) via a Windows-based PPTP client with the "No Encryption" option set.


[CNNVD]Cisco VPN Concentrator PPTP Client远程服务拒绝漏洞(CNNVD-200210-201)

        Cisco VPN 3000 Concentrator 2.5.2(F)之前版本存在漏洞。当加密启用时远程攻击者借助带有"No Encryption"选项设置基于Windows的PPTP客户端导致服务拒绝(重装)。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: NONE [对系统的机密性无影响]
完整性影响: NONE [不会对系统完整性产生影响]
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)

cpe:/o:cisco:vpn_3000_concentrator:2.5.2.b
cpe:/o:cisco:vpn_3000_concentrator:2.5.2.c
cpe:/a:cisco:vpn_3002_hardware_clientCisco VPN 3002 Hardware Client
cpe:/a:cisco:secure_access_control_server:2.6.3::windows_nt
cpe:/o:cisco:vpn_3000_concentrator:2.5.2.a
cpe:/o:cisco:vpn_3000_concentrator:2.5.2.d
cpe:/o:cisco:vpn_3000_concentrator:2.0

- 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-2002-1095
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-1095
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200210-201
(官方数据源) CNNVD

- 其它链接及资源

http://www.iss.net/security_center/static/10021.php
(VENDOR_ADVISORY)  XF  cisco-vpn-pptp-dos(10021)
http://www.cisco.com/warp/public/707/vpn3k-multiple-vuln-pub.shtml
(VENDOR_ADVISORY)  CISCO  20020903 Cisco VPN 3000 Concentrator Multiple Vulnerabilities
http://www.securityfocus.com/bid/5625
(UNKNOWN)  BID  5625

- 漏洞信息

Cisco VPN Concentrator PPTP Client远程服务拒绝漏洞
中危 其他
2002-10-04 00:00:00 2005-10-12 00:00:00
远程  
        Cisco VPN 3000 Concentrator 2.5.2(F)之前版本存在漏洞。当加密启用时远程攻击者借助带有"No Encryption"选项设置基于Windows的PPTP客户端导致服务拒绝(重装)。

- 公告与补丁

        Cisco has released fixes which address this issue. For Cisco VPN 3002 Hardware Client, this issue is addressed in versions 3.5.5 and 3.6.1 of the firmware.
        Cisco VPN 3000 Concentrator 2.5.2 (B)
        
        Cisco VPN 3000 Concentrator 2.5.2 (C)
        
        Cisco VPN 3000 Concentrator 2.5.2 (D)
        
        Cisco VPN 3000 Concentrator 2.5.2 (A)
        

- 漏洞信息

8910
Cisco VPN 3000 Concentrator PPTP No Encryption Option Remote DoS
Remote / Network Access Denial of Service
Loss of Availability Upgrade
Vendor Verified

- 漏洞描述

- 时间线

2002-09-03 Unknow
Unknow Unknow

- 解决方案

Products

Unknown or Incomplete

- 相关参考

- 漏洞作者

Unknown or Incomplete

- 漏洞信息

Cisco VPN Concentrator PPTP Client Remote Denial Of Service Vulnerability
Failure to Handle Exceptional Conditions 5625
Yes No
2002-09-03 12:00:00 2009-07-11 03:56:00
Vulnerability announced in a Cisco Security Advisory.

- 受影响的程序版本

Cisco VPN 3002 Hardware Client
Cisco VPN 3000 Concentrator 2.5.2 (D)
Cisco VPN 3000 Concentrator 2.5.2 (C)
Cisco VPN 3000 Concentrator 2.5.2 (B)
Cisco VPN 3000 Concentrator 2.5.2 (A)
Cisco VPN 3000 Concentrator 2.0
Cisco Secure ACS for Windows NT 2.6.3
- Microsoft Windows 2000 Advanced Server SP2
- Microsoft Windows 2000 Advanced Server SP1
- Microsoft Windows 2000 Advanced Server
- Microsoft Windows 2000 Datacenter Server SP2
- Microsoft Windows 2000 Datacenter Server SP1
- Microsoft Windows 2000 Datacenter Server
- Microsoft Windows 2000 Professional SP2
- Microsoft Windows 2000 Professional SP1
- Microsoft Windows 2000 Professional
- Microsoft Windows 2000 Server SP2
- Microsoft Windows 2000 Server SP1
- Microsoft Windows 2000 Server
- Microsoft Windows 2000 Terminal Services SP2
- Microsoft Windows 2000 Terminal Services SP1
- Microsoft Windows 2000 Terminal Services
- Microsoft Windows NT Enterprise Server 4.0 SP6a
- Microsoft Windows NT Enterprise Server 4.0 SP6
- Microsoft Windows NT Enterprise Server 4.0 SP5
- Microsoft Windows NT Enterprise Server 4.0 SP4
- Microsoft Windows NT Enterprise Server 4.0 SP3
- Microsoft Windows NT Enterprise Server 4.0 SP2
- Microsoft Windows NT Enterprise Server 4.0 SP1
- Microsoft Windows NT Enterprise Server 4.0
- Microsoft Windows NT Server 4.0 SP6a
- Microsoft Windows NT Server 4.0 SP6
- Microsoft Windows NT Server 4.0 SP5
- Microsoft Windows NT Server 4.0 SP4
- Microsoft Windows NT Server 4.0 SP3
- Microsoft Windows NT Server 4.0 SP2
- Microsoft Windows NT Server 4.0 SP1
- Microsoft Windows NT Server 4.0
- Microsoft Windows NT Terminal Server 4.0 SP6
- Microsoft Windows NT Terminal Server 4.0 SP5
- Microsoft Windows NT Terminal Server 4.0 SP4
- Microsoft Windows NT Terminal Server 4.0 SP3
- Microsoft Windows NT Terminal Server 4.0 SP2
- Microsoft Windows NT Terminal Server 4.0 SP1
- Microsoft Windows NT Terminal Server 4.0
- Microsoft Windows NT Workstation 4.0 SP6a
- Microsoft Windows NT Workstation 4.0 SP6
- Microsoft Windows NT Workstation 4.0 SP5
- Microsoft Windows NT Workstation 4.0 SP4
- Microsoft Windows NT Workstation 4.0 SP3
- Microsoft Windows NT Workstation 4.0 SP2
- Microsoft Windows NT Workstation 4.0 SP1
- Microsoft Windows NT Workstation 4.0
Cisco VPN 3000 Concentrator 3.6.1
Cisco VPN 3000 Concentrator 3.6
Cisco VPN 3000 Concentrator 3.5.5
Cisco VPN 3000 Concentrator 3.5.4
Cisco VPN 3000 Concentrator 3.5.3
Cisco VPN 3000 Concentrator 3.5.2
Cisco VPN 3000 Concentrator 3.5.1
Cisco VPN 3000 Concentrator 3.5 (Rel)
Cisco VPN 3000 Concentrator 3.1.4
Cisco VPN 3000 Concentrator 3.1.2
Cisco VPN 3000 Concentrator 3.1.1
Cisco VPN 3000 Concentrator 3.1 (Rel)
Cisco VPN 3000 Concentrator 3.0.4
Cisco VPN 3000 Concentrator 3.0.3 (B)
Cisco VPN 3000 Concentrator 3.0.3 (A)
Cisco VPN 3000 Concentrator 3.0
Cisco VPN 3000 Concentrator 2.5.2 (F)

- 不受影响的程序版本

Cisco VPN 3000 Concentrator 3.6.1
Cisco VPN 3000 Concentrator 3.6
Cisco VPN 3000 Concentrator 3.5.5
Cisco VPN 3000 Concentrator 3.5.4
Cisco VPN 3000 Concentrator 3.5.3
Cisco VPN 3000 Concentrator 3.5.2
Cisco VPN 3000 Concentrator 3.5.1
Cisco VPN 3000 Concentrator 3.5 (Rel)
Cisco VPN 3000 Concentrator 3.1.4
Cisco VPN 3000 Concentrator 3.1.2
Cisco VPN 3000 Concentrator 3.1.1
Cisco VPN 3000 Concentrator 3.1 (Rel)
Cisco VPN 3000 Concentrator 3.0.4
Cisco VPN 3000 Concentrator 3.0.3 (B)
Cisco VPN 3000 Concentrator 3.0.3 (A)
Cisco VPN 3000 Concentrator 3.0
Cisco VPN 3000 Concentrator 2.5.2 (F)

- 漏洞讨论

Cisco VPN 3000 series concentrators are a family of products for
facilitating secure communications via VPN (Virtual Private Networks).

Under some circumstances, it may be possible for a remote PPTP client to cause a denial of service. By connecting to a vulnerable device with the "No Encryption" option specified in the client, the VPN Concentrator can be made to become unstable. This could result in a denial of service to legitimate users of the device.

- 漏洞利用

There is no exploit code required.

- 解决方案

Cisco has released fixes which address this issue. For Cisco VPN 3002 Hardware Client, this issue is addressed in versions 3.5.5 and 3.6.1 of the firmware.


Cisco VPN 3000 Concentrator 2.5.2 (B)

Cisco VPN 3000 Concentrator 2.5.2 (C)

Cisco VPN 3000 Concentrator 2.5.2 (D)

Cisco VPN 3000 Concentrator 2.5.2 (A)

- 相关参考

     

     

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