CVE-2002-1914
CVSS2.1
发布时间 :2002-12-31 00:00:00
修订时间 :2008-09-05 16:31:50
NMCOS    

[原文]dump 0.4 b10 through b29 allows local users to cause a denial of service (execution prevention) by using flock() to lock the /etc/dumpdates file.


[CNNVD]多家厂商dump程序可锁住本地文件漏洞(CNNVD-200212-218)

        
        dump是一款文件系统备份程序,主要使用于FreeBSD/OpenBSD/NetBSD操作系统下。
        dump在处理锁住的文件时存在漏洞,本地攻击者可以利用这个漏洞进行拒绝服务攻击。
        当管理员使用dump命令备份系统的时候,本地攻击者通过使用flock(fileno(df), LOCK_SH)函数锁住/etc/dumpdates文件,中断dump操作,造成拒绝服务攻击。
        

- CVSS (基础分值)

CVSS分值: 2.1 [轻微(LOW)]
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: LOCAL [漏洞利用需要具有物理访问权限或本地帐户]
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:dump:dump:0.4_b11
cpe:/a:dump:dump:0.4_b19
cpe:/a:dump:dump:0.4_b27
cpe:/a:dump:dump:0.4_b13
cpe:/a:dump:dump:0.4_b12
cpe:/a:dump:dump:0.4_b21
cpe:/a:dump:dump:0.4_b25
cpe:/a:dump:dump:0.4_b28
cpe:/a:dump:dump:0.4_b14
cpe:/a:dump:dump:0.4_b18
cpe:/a:dump:dump:0.4_b23
cpe:/a:dump:dump:0.4_b10
cpe:/a:dump:dump:0.4_b29
cpe:/a:dump:dump:0.4_b26
cpe:/a:dump:dump:0.4_b16
cpe:/a:dump:dump:0.4_b24
cpe:/a:dump:dump:0.4_b22
cpe:/a:dump:dump:0.4_b17
cpe:/a:dump:dump:0.4_b15
cpe:/a:dump:dump:0.4_b20

- 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-2002-1914
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2002-1914
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200212-218
(官方数据源) CNNVD

- 其它链接及资源

http://www.securityfocus.com/bid/5264
(UNKNOWN)  BID  5264
http://www.iss.net/security_center/static/9632.php
(UNKNOWN)  XF  dump-flock-dumpdates-dos(9632)
http://www.redhat.com/support/errata/RHSA-2005-583.html
(UNKNOWN)  REDHAT  RHSA-2005:583
http://support.avaya.com/elmodocs2/security/ASA-2006-156.htm
(UNKNOWN)  CONFIRM  http://support.avaya.com/elmodocs2/security/ASA-2006-156.htm
http://secunia.com/advisories/21520
(UNKNOWN)  SECUNIA  21520

- 漏洞信息

多家厂商dump程序可锁住本地文件漏洞
低危 其他
2002-12-31 00:00:00 2005-10-20 00:00:00
本地  
        
        dump是一款文件系统备份程序,主要使用于FreeBSD/OpenBSD/NetBSD操作系统下。
        dump在处理锁住的文件时存在漏洞,本地攻击者可以利用这个漏洞进行拒绝服务攻击。
        当管理员使用dump命令备份系统的时候,本地攻击者通过使用flock(fileno(df), LOCK_SH)函数锁住/etc/dumpdates文件,中断dump操作,造成拒绝服务攻击。
        

- 公告与补丁

        厂商补丁:
        dump
        ----
        目前厂商还没有提供补丁或者升级程序,我们建议使用此软件的用户随时关注厂商的主页以获取最新版本。

- 漏洞信息

18531
Linux dump flock() /etc/dumpdates Local DoS
Local Access Required Denial of Service
Loss of Availability
Exploit Public Vendor Verified

- 漏洞描述

Linux dump contains a flaw that may allow a local denial of service. The issue is triggered when a malicious user uses 'dump' to execute a lock on the /etc/dumpdates file, and will result in loss of availability for the dump service.

- 时间线

2002-07-17 Unknow
2002-07-17 Unknow

- 解决方案

Upgrade to dump version 0.4b32 or higher, as it has been reported to fix this vulnerability. Red Hat has released a patch for Red Hat Enterprise Linux v. 2.1 to address this vulnerability. It is also possible to reduce exposure to the flaw by implementing the following workaround(s): remove world-readable permissions to /etc/dumpdates.

- 相关参考

- 漏洞作者

- 漏洞信息

Multiple Vendor Dump File Locking Denial Of Service Vulnerability
Failure to Handle Exceptional Conditions 5264
No Yes
2002-07-18 12:00:00 2006-08-16 09:15:00
Discovery of this issue is credited to lumpy <lumpy@the.whole.net>.

- 受影响的程序版本

RedHat Enterprise Linux WS 2.1 IA64
RedHat Enterprise Linux WS 2.1
RedHat Enterprise Linux ES 2.1 IA64
RedHat Enterprise Linux ES 2.1
RedHat Advanced Workstation for the Itanium Processor 2.1 IA64
RedHat Advanced Workstation for the Itanium Processor 2.1
Red Hat Enterprise Linux AS 2.1 IA64
Red Hat Enterprise Linux AS 2.1
OpenBSD OpenBSD 2.9
OpenBSD OpenBSD 2.8
OpenBSD OpenBSD 2.7
OpenBSD OpenBSD 2.6
OpenBSD OpenBSD 2.5
OpenBSD OpenBSD 2.4
OpenBSD OpenBSD 2.3
OpenBSD OpenBSD 2.2
OpenBSD OpenBSD 2.1
OpenBSD OpenBSD 2.0
OpenBSD OpenBSD 3.1
OpenBSD OpenBSD 3.0
NetBSD NetBSD 1.5.2
NetBSD NetBSD 1.5.1
NetBSD NetBSD 1.5
NetBSD NetBSD 1.4.3
NetBSD NetBSD 1.4.2
NetBSD NetBSD 1.4.1
NetBSD NetBSD 1.4
NetBSD NetBSD 1.3.3
NetBSD NetBSD 1.3.2
NetBSD NetBSD 1.3.1
NetBSD NetBSD 1.3
NetBSD NetBSD 1.2.1
NetBSD NetBSD 1.2
NetBSD NetBSD 1.1
NetBSD NetBSD 1.0
FreeBSD FreeBSD 5.0
FreeBSD FreeBSD 4.6 -RELEASE
FreeBSD FreeBSD 4.6
FreeBSD FreeBSD 4.5 -STABLE
FreeBSD FreeBSD 4.5 -RELEASE
FreeBSD FreeBSD 4.5
FreeBSD FreeBSD 4.4 -STABLE
FreeBSD FreeBSD 4.4 -RELENG
FreeBSD FreeBSD 4.4
FreeBSD FreeBSD 4.3 -STABLE
FreeBSD FreeBSD 4.3 -RELEASE
FreeBSD FreeBSD 4.3
FreeBSD FreeBSD 4.2 -STABLE
FreeBSD FreeBSD 4.2 -RELEASE
FreeBSD FreeBSD 4.2
FreeBSD FreeBSD 4.1.1 -STABLE
FreeBSD FreeBSD 4.1.1 -RELEASE
FreeBSD FreeBSD 4.1.1
FreeBSD FreeBSD 4.1
FreeBSD FreeBSD 4.0
FreeBSD FreeBSD 3.5.1 -STABLE
FreeBSD FreeBSD 3.5.1 -RELEASE
FreeBSD FreeBSD 3.5.1
FreeBSD FreeBSD 3.5 -STABLE
FreeBSD FreeBSD 3.5
dump dump 0.4 b29
dump dump 0.4 b28
dump dump 0.4 b27
dump dump 0.4 b26
+ S.u.S.E. Linux 8.0
dump dump 0.4 b25
dump dump 0.4 b24
dump dump 0.4 b23
dump dump 0.4 b22
dump dump 0.4 b21
dump dump 0.4 b20
dump dump 0.4 b19
dump dump 0.4 b18
dump dump 0.4 b17
dump dump 0.4 b16
dump dump 0.4 b15
dump dump 0.4 b14
dump dump 0.4 b13
dump dump 0.4 b12
dump dump 0.4 b11
dump dump 0.4 b10
Avaya S8710 R2.0.1
Avaya S8710 R2.0.0
Avaya S8700 R2.0.1
Avaya S8700 R2.0.0
Avaya S8500 R2.0.1
Avaya S8500 R2.0.0
Avaya S8300 R2.0.1
Avaya S8300 R2.0.0
Avaya Messaging Storage Server
Avaya Message Networking
Avaya Intuity LX

- 漏洞讨论

Local attackers may be able to cause a denial of service by creating a file lock on files that the dump utility requires for normal operation. Attackers may exploit this to effectively prevent dump from backing up files.

To resume normal operation after an attack, the process holding the file lock must be killed.

- 漏洞利用

On FreeBSD, attackers may exploit this issue using the lockf utility. Other environments may require that the attacker compose a program that applies a file lock.

- 解决方案

Please see the referenced advisories for more information.

Currently we are not aware of any vendor-supplied patches for this issue. If you feel we are in error or if you are aware of more recent information, please mail us at: vuldb@securityfocus.commailto:vuldb@securityfocus.com.

- 相关参考

 

 

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