发布时间 :2001-12-06 00:00:00
修订时间 :2008-09-05 16:25:06

[原文]Cisco 12000 with IOS 12.0 and lines card based on Engine 2 does not properly handle an outbound ACL when an input ACL is not configured on all the interfaces of a multi port line card, which could allow remote attackers to bypass the intended access controls.


        基于Engine 2的带IOS 12.0和线路卡的Cisco 12000版本在输入ACL没有配置在multi线路卡端口的所有界面时不能正确处理外出ACL。远程攻击者绕过预期访问控制。

- 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)

oval:org.mitre.oval:def:5210Cisco IOS 12.0 Allowance of Malicious Traffic Vulnerability

- 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
(UNKNOWN)  CISCO  20011114 Multiple Vulnerabilities in Access Control List Implementation for Cisco 12000 Series Internet Router
(UNKNOWN)  BID  3537
(UNKNOWN)  XF  cisco-input-acl-configured(7554)

- 漏洞信息

高危 设计错误
2001-12-06 00:00:00 2005-05-02 00:00:00
        基于Engine 2的带IOS 12.0和线路卡的Cisco 12000版本在输入ACL没有配置在multi线路卡端口的所有界面时不能正确处理外出ACL。远程攻击者绕过预期访问控制。

- 公告与补丁

        Cisco has released upgrades which address this issue.
        Cisco IOS 12.0 S

  •         Cisco IOS 12.0(16)S1


  •         Cisco IOS 12.0(17.1)S


  •         Cisco IOS 12.0(18)S


        Cisco IOS 12.0 ST

  •         Cisco IOS 12.0(15.6)ST3


  •         Cisco IOS 12.0(17.1)ST


  •         Cisco IOS 12.0(18)ST


- 漏洞信息

Cisco 12000 Series Router Line Card Outbound ACL Failure

- 漏洞描述

Cisco IOS on Cisco 12000 series routers contains a flaw that may allow a malicious user to bypass outbound ACLs. The issue is triggered when some, but not all, interfaces of a line card are configured with inbound ACLs. It is possible that the flaw may allow unauthorized traffic to traverse the network.

- 时间线

2001-11-14 2001-11-14
Unknow Unknow

- 解决方案

Upgrade to version indicated by Cisco product matrix, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

- 相关参考

- 漏洞作者

Unknown or Incomplete