CVE-2006-0046
CVSS7.8
发布时间 :2006-02-13 06:06:00
修订时间 :2011-03-07 21:29:13
NMCOPS    

[原文]squid_redirect script in adzapper before 2006-01-29 allows remote attackers to cause a denial of service (CPU consumption) via a URL with a large number of trailing / (forward slashes), which might produce inefficient regular expressions.


[CNNVD]Adzapper Squid_Redirect URI处理远程拒绝服务漏洞(CNNVD-200602-152)

        adzapper 2006-01-29之前版本中的squid_redirect脚本可使远程攻击者借助带有大量后缀/(前斜线)(可能产生低效率的正则表达式)的URL造成拒绝服务(CPU占用率高)。

- CVSS (基础分值)

CVSS分值: 7.8 [严重(HIGH)]
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: COMPLETE [可能导致系统完全宕机]
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:cameron_simpson:adzapper:2006-01-14
cpe:/a:cameron_simpson:adzapper:2006-01-23
cpe:/a:cameron_simpson:adzapper:2006-01-25
cpe:/a:cameron_simpson:adzapper:2006-01-01
cpe:/a:cameron_simpson:adzapper:2006-01-29
cpe:/a:cameron_simpson:adzapper:2006-01-24
cpe:/a:cameron_simpson:adzapper:2006-01-28
cpe:/a:cameron_simpson:adzapper:2006-01-07
cpe:/a:cameron_simpson:adzapper:2006-01-15
cpe:/a:cameron_simpson:adzapper:2006-01-05

- 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-2006-0046
(官方数据源) MITRE
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2006-0046
(官方数据源) NVD
http://www.cnnvd.org.cn/vulnerability/show/cv_cnnvdid/CNNVD-200602-152
(官方数据源) CNNVD

- 其它链接及资源

http://www.debian.org/security/2006/dsa-966
(VENDOR_ADVISORY)  DEBIAN  DSA-966
http://secunia.com/advisories/18777
(VENDOR_ADVISORY)  SECUNIA  18777
http://secunia.com/advisories/18771
(VENDOR_ADVISORY)  SECUNIA  18771
http://www.vupen.com/english/advisories/2006/0491
(UNKNOWN)  VUPEN  ADV-2006-0491
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=350308
(UNKNOWN)  MISC  http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=350308
http://bugs.debian.org/cgi-bin/bugreport.cgi/squid_redirect.diff?bug=350308;msg=5;att=1
(UNKNOWN)  MISC  http://bugs.debian.org/cgi-bin/bugreport.cgi/squid_redirect.diff?bug=350308;msg=5;att=1
http://adzapper.sourceforge.net/cvslog.html
(UNKNOWN)  CONFIRM  http://adzapper.sourceforge.net/cvslog.html
http://xforce.iss.net/xforce/xfdb/24640
(UNKNOWN)  XF  adzapper-squid-redirect-dos(24640)
http://www.securityfocus.com/bid/16558
(UNKNOWN)  BID  16558
http://www.osvdb.org/22900
(UNKNOWN)  OSVDB  22900

- 漏洞信息

Adzapper Squid_Redirect URI处理远程拒绝服务漏洞
高危 其他
2006-02-13 00:00:00 2006-02-14 00:00:00
远程  
        adzapper 2006-01-29之前版本中的squid_redirect脚本可使远程攻击者借助带有大量后缀/(前斜线)(可能产生低效率的正则表达式)的URL造成拒绝服务(CPU占用率高)。

- 公告与补丁

        目前厂商已经发布了升级补丁以修复这个安全问题,厂商发布了相关更新。
        

- 漏洞信息 (F43701)

Debian Linux Security Advisory 966-1 (PacketStormID:F43701)
2006-02-10 00:00:00
Debian  debian.org
advisory,denial of service
linux,debian
CVE-2006-0046
[点击下载]

Debian Security Advisory DSA 966-1 - Thomas Reifferscheid discovered that adzapper, a proxy advertisement zapper add-on, when installed as plugin in squid, the Internet object cache, can consume a lot of CPU resources and hence cause a denial of service on the proxy host.

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

- --------------------------------------------------------------------------
Debian Security Advisory DSA 966-1                     security@debian.org
http://www.debian.org/security/                             Martin Schulze
February 9th, 2006                      http://www.debian.org/security/faq
- --------------------------------------------------------------------------

Package        : adzapper
Vulnerability  : denial of service
Problem type   : remote
Debian-specific: no
CVE ID         : CVE-2006-0046
Debian Bug     : 350308

Thomas Reifferscheid discovered that adzapper, a proxy advertisement
zapper add-on, when installed as plugin in squid, the Internet object
cache, can consume a lot of CPU resources and hence cause a denial of
service on the proxy host.

The old stable distribution (woody) does not contain an adzapper package.

For the stable distribution (sarge) this problem has been fixed in
version 20050316-1sarge1.

For the unstable distribution (sid) this problem has been fixed in
version 20060115-1.

We recommend that you upgrade your adzapper package.


Upgrade Instructions
- --------------------

wget url
        will fetch the file for you
dpkg -i file.deb
        will install the referenced file.

If you are using the apt-get package manager, use the line for
sources.list as given below:

apt-get update
        will update the internal database
apt-get upgrade
        will install corrected packages

You may use an automated update by adding the resources from the
footer to the proper configuration.


Debian GNU/Linux 3.1 alias sarge
- --------------------------------

  Source archives:

    http://security.debian.org/pool/updates/main/a/adzapper/adzapper_20050316-1sarge1.dsc
      Size/MD5 checksum:      593 46351acfe636a0fa3bb74353708ba841
    http://security.debian.org/pool/updates/main/a/adzapper/adzapper_20050316-1sarge1.diff.gz
      Size/MD5 checksum:     5525 0fc182315da374cac8c370d536caf1de
    http://security.debian.org/pool/updates/main/a/adzapper/adzapper_20050316.orig.tar.gz
      Size/MD5 checksum:    49003 c5e85d7664b873deea48f8ad16a5f68e

  Architecture independent components:

    http://security.debian.org/pool/updates/main/a/adzapper/adzapper_20050316-1sarge1_all.deb
      Size/MD5 checksum:    53932 1e3b19a4b4a8fc8ad9b681829de0d9f2


  These files will probably be moved into the stable distribution on
  its next update.

- ---------------------------------------------------------------------------------
For apt-get: deb http://security.debian.org/ stable/updates main
For dpkg-ftp: ftp://security.debian.org/debian-security dists/stable/updates/main
Mailing list: debian-security-announce@lists.debian.org
Package info: `apt-cache show <pkg>' and http://packages.debian.org/<pkg>

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Version: GnuPG v1.4.2 (GNU/Linux)

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=GOYE
-----END PGP SIGNATURE-----

    

- 漏洞信息

22900
Ad Zapping With Squid squid_redirect Crafted URL DoS
Remote / Network Access Denial of Service, Input Manipulation
Loss of Availability
Exploit Unknown Vendor Verified

- 漏洞描述

Ad Zapper for squid contains a flaw that may allow a remote denial of service. The issue is triggered when sending a URL to the squid_redirect script with a large number of forward slashes. This can cause the remote host to consume CPU resources, potentially causing a denial of service.

- 时间线

2006-01-29 Unknow
Unknow Unknow

- 解决方案

Upgrade to version 3.5 or higher, 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

- 漏洞信息

Adzapper Squid_Redirect URI Handling Remote Denial of Service Vulnerability
Failure to Handle Exceptional Conditions 16558
Yes No
2006-02-09 12:00:00 2006-02-09 05:03:00
Discovered by Thomas Reifferscheid <reiffert@student.physik.uni-mainz.de>.

- 受影响的程序版本

Debian Linux 3.1 sparc
Debian Linux 3.1 s/390
Debian Linux 3.1 ppc
Debian Linux 3.1 mipsel
Debian Linux 3.1 mips
Debian Linux 3.1 m68k
Debian Linux 3.1 ia-64
Debian Linux 3.1 ia-32
Debian Linux 3.1 hppa
Debian Linux 3.1 arm
Debian Linux 3.1 amd64
Debian Linux 3.1 alpha
Debian Linux 3.1
adzapper adzapper 20060115
adzapper adzapper 20050316
adzapper adzapper 20030726
adzapper adzapper 20060129

- 不受影响的程序版本

adzapper adzapper 20060129

- 漏洞讨论


Adzapper is prone to a remote denial-of-service vulnerability when installed as a plugin in squid.

The vulnerability presents itself when a specially crafted URI is handled.

Adzapper versions prior to 2006-01-29 are vulnerable.

- 漏洞利用


An exploit is not required.

- 解决方案


The vendor has addressed this issue in adzapper 20060129 and subsequent versions. Please see the referenced vendor advisories for more information.

- 相关参考

 

 

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