发布时间 :1998-02-01 00:00:00
修订时间 :2018-05-02 21:29:02

[原文]The system configuration control (sysctl) facility in BSD based operating systems OpenBSD 2.2 and earlier, and FreeBSD 2.2.5 and earlier, does not properly restrict source routed packets even when the (1) dosourceroute or (2) forwarding variables are set, which allows remote attackers to spoof TCP connections.

[CNNVD]BSD 系统配置控件伪造连接漏洞(CNNVD-199802-001)

        基于操作系统OpenBSD 2.2版本和之前版本,以及FreeBSD 2.2.5版本和之前版本的BSD中的系统配置控件(sysctl)设备存在漏洞。即使在(1) dosourceroute或(2)传递变量被设定时,也不能正确地限制源寻址数据包,远程攻击者可以伪造TCP连接。

- CVSS (基础分值)

CVSS分值: 5 [中等(MEDIUM)]
机密性影响: [--]
完整性影响: [--]
可用性影响: [--]
攻击复杂度: [--]
攻击向量: [--]
身份认证: [--]

- CPE (受影响的平台与产品)

cpe:/o:freebsd:freebsd:2.2FreeBSD 2.2
cpe:/o:freebsd:freebsd:2.2.5FreeBSD 2.2.5
cpe:/o:openbsd:openbsd:2.0OpenBSD 2.0
cpe:/o:openbsd:openbsd:2.1OpenBSD 2.1
cpe:/o:openbsd:openbsd:2.2OpenBSD 2.2

- OVAL (用于检测的技术细节)


- 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)  XF  bsd-sourceroute(736)

- 漏洞信息

BSD 系统配置控件伪造连接漏洞
中危 未知
1998-02-01 00:00:00 2006-11-16 00:00:00
        基于操作系统OpenBSD 2.2版本和之前版本,以及FreeBSD 2.2.5版本和之前版本的BSD中的系统配置控件(sysctl)设备存在漏洞。即使在(1) dosourceroute或(2)传递变量被设定时,也不能正确地限制源寻址数据包,远程攻击者可以伪造TCP连接。

- 公告与补丁


- 漏洞信息

Multiple BSD sysctl Control Failure Source Routing Attack
Remote / Network Access Infrastructure
Loss of Integrity

- 漏洞描述

Multiple BSDs contain a flaw that may allow a malicious user to spoof TCP connections against BSD hosts on networks that do not filter source routed packets via router packet filters. The issue is triggered when the sysctl system configuration control for "do source route" does not prevent source routed packets from being accepted by 4.4BSD kernels, even when the sysctl variable net.inet.ip.dosourceroute is set to '0'. It is possible that the flaw may result in a loss of integrity.

- 时间线

1998-02-15 Unknow
Unknow Unknow

- 解决方案

Currently, there are no known workarounds or upgrades to correct this issue. However, FreeBSD and OpenBSD have released patches to address this vulnerability.

- 相关参考

- 漏洞作者

Unknown or Incomplete