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 line cards based on Engine 2 does not support the "fragment" keyword in an outgoing ACL, which could allow fragmented packets in violation of the intended access.

[CNNVD]Cisco 12000系列Turbo ACL Fragment绕过漏洞(CNNVD-200112-029)

        基于Engine 2的带IOS 12.0和线路卡的Cisco 12000版本在外向ACL中不能支持“fragment”关键字。碎片数据包违反预期访问。

- 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:5461Cisco IOS 12.0 Turbo ACL Denial of Service 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
(VENDOR_ADVISORY)  CISCO  20011114 Multiple Vulnerabilities in Access Control List Implementation for Cisco 12000 Series Internet Router
(UNKNOWN)  XF  cisco-turbo-acl-dos(7552)
(UNKNOWN)  BID  3540

- 漏洞信息

Cisco 12000系列Turbo ACL Fragment绕过漏洞
高危 设计错误
2001-12-06 00:00:00 2005-10-12 00:00:00
        基于Engine 2的带IOS 12.0和线路卡的Cisco 12000版本在外向ACL中不能支持“fragment”关键字。碎片数据包违反预期访问。

- 公告与补丁

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

  •         Cisco IOS 12.0(19)S


        Cisco IOS 12.0 ST

  •         Cisco IOS 12.0(18.6)ST1


- 漏洞信息

Cisco 12000 Series Router Turbo ACL DoS
Denial of Service
Loss of Availability

- 漏洞描述

Cisco IOS on Cisco 12000 series routers contains a flaw that may allow a remote denial of service. The issue is triggered by the "fragment" keyword being ignored in an ACL if the packet is destined fo rthe router itself, and will result in loss of availability for the platform.

- 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