CVE-2000-0548
CVSS5.0
发布时间 :2000-06-09 00:00:00
修订时间 :2008-09-10 15:05:01
NMCO    

[原文]Buffer overflow in Kerberos 4 KDC program allows remote attackers to cause a denial of service via the e_msg variable in the kerb_err_reply function.


[CNNVD]Kerberos4 KDC AUTH_MSG_KDC_REQUEST无效终止漏洞(CNNVD-200006-047)

        Kerberos 4 KDC程序存在缓冲区溢出漏洞。远程攻击者借助kerb_err_reply函数中e_msg变量导致拒绝服务。

- 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:/a:mit:kerberos:4.0MIT Kerberos 4 4.0
cpe:/a:mit:kerberos:5_1.1.1MIT Kerberos 5 1.1.1
cpe:/a:mit:kerberos:5_1.1MIT Kerberos 5 1.1
cpe:/a:mit:kerberos:5_1.0MIT Kerberos 5 krb5_1.0
cpe:/a:cygnus:kerbnet
cpe:/a:cygnus:cygnus_network_security

- 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-2000-0548
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2000-0548
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200006-047
(官方数据源) CNNVD

- 其它链接及资源

http://www.cert.org/advisories/CA-2000-11.html
(VENDOR_ADVISORY)  CERT  CA-2000-11
http://archives.neohapsis.com/archives/bugtraq/2000-06/0064.html
(VENDOR_ADVISORY)  BUGTRAQ  20000609 Security Advisory: MULTIPLE DENIAL OF SERVICE VULNERABILITIES IN KRB4 KDC
http://web.mit.edu/kerberos/www/advisories/krb4kdc.txt
(UNKNOWN)  CONFIRM  http://web.mit.edu/kerberos/www/advisories/krb4kdc.txt
http://www.redhat.com/support/errata/RHSA-2000-031.html
(UNKNOWN)  REDHAT  RHSA-2000:031
http://www.osvdb.org/4875
(UNKNOWN)  OSVDB  4875
http://ciac.llnl.gov/ciac/bulletins/k-051.shtml
(UNKNOWN)  CIAC  K-051

- 漏洞信息

Kerberos4 KDC AUTH_MSG_KDC_REQUEST无效终止漏洞
中危 缓冲区溢出
2000-06-09 00:00:00 2005-07-26 00:00:00
远程  
        Kerberos 4 KDC程序存在缓冲区溢出漏洞。远程攻击者借助kerb_err_reply函数中e_msg变量导致拒绝服务。

- 公告与补丁

        

- 漏洞信息

4875
MIT Kerberos 4/5 e_msg Variable kerb_err_reply Function Remote Overflow
Remote / Network Access Denial of Service, Input Manipulation
Loss of Integrity, Loss of Availability

- 漏洞描述

MIT Kerberos contain a flaw that may allow a remote denial of service. The issue is triggered when a remote attacker overflows the buffer of the e_msg variable in the kerb_err_reply() function, causing the KDC to issue invalid tickets for all principles, generate a "principal unknown" error or crash the KDC process, resulting in loss of availability for the platform.

- 时间线

2000-06-09 2000-06-09
Unknow Unknow

- 解决方案

Upgrade to MIT Kerberos 5 version 1.2 or higher, as it has been reported to fix this vulnerability. It is also possible to correct the flaw by implementing the following workaround: apply the appropriate KDC patch from MIT, as listed in the Kerberos Security Advisory.

- 相关参考

- 漏洞作者

 

 

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