CVE-2000-1167
CVSS7.5
发布时间 :2001-01-09 00:00:00
修订时间 :2008-09-05 16:22:49
NMCO    

[原文]ppp utility in FreeBSD 4.1.1 and earlier does not properly restrict access as specified by the "nat deny_incoming" command, which allows remote attackers to connect to the target system.


[CNNVD]FreeBSD目标系统连接漏洞(CNNVD-200101-109)

        FreeBSD 4.1.1版本及之前版本的ppp应用程序不能正确地按照"nat deny_incoming" 命令说明的限制访问,远程攻击者可以连接到目标系统。

- 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)

cpe:/o:freebsd:freebsd:3.5.1FreeBSD 3.5.1
cpe:/o:freebsd:freebsd:4.1.1:stable
cpe:/o:freebsd:freebsd:3.5FreeBSD 3.5
cpe:/o:freebsd:freebsd:4.0FreeBSD 4.0
cpe:/o:freebsd:freebsd:4.1FreeBSD 4.1

- 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-2000-1167
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2000-1167
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200101-109
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/1974
(VENDOR_ADVISORY)  BID  1974
http://xforce.iss.net/xforce/xfdb/5584
(UNKNOWN)  XF  freebsd-ppp-bypass-gateway(5584)
http://www.osvdb.org/1655
(UNKNOWN)  OSVDB  1655
ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-00:70.ppp-nat.asc
(UNKNOWN)  FREEBSD  FreeBSD-SA-00:70

- 漏洞信息

FreeBSD目标系统连接漏洞
高危 未知
2001-01-09 00:00:00 2005-10-12 00:00:00
远程  
        FreeBSD 4.1.1版本及之前版本的ppp应用程序不能正确地按照"nat deny_incoming" 命令说明的限制访问,远程攻击者可以连接到目标系统。

- 公告与补丁

        

- 漏洞信息

1655
FreeBSD ppp deny_incoming Restriction Remote Bypass
Remote / Network Access Misconfiguration
Loss of Integrity

- 漏洞描述

FreeBSD contains a flaw that may allow a malicious user to bypass the nat gateway. The issue was triggered because code was added to permit certain types of data through the nat gateway. It is possible that the flaw may allow all traffic to pass through, despite the "deny_incoming" directive, resulting in a loss of integrity.

- 时间线

2000-11-14 Unknow
2000-11-14 Unknow

- 解决方案

Upgrade to version FreeBSD system to 4.1.1-STABLE or 3.5.1-STABLE after the respective correction dates, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround(s): use a true packet filter such as ipfw(8) or ipf(8) on the PPP gateway to deny incoming traffic according to the desired security policy. Also, FreeBSD has released a patch.

- 相关参考

- 漏洞作者

 

 

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