CVE-2009-1891 httpd：mod_deflate での一時的 DOS（CPU 消費）の可能性

CVE-2009-3094 httpd：細工された EPSV および PASV 返信によって mod_proxy_ftp で発生する NULL ポインターデリファレンス

CVE-2009-3095 httpd：認証 HTTP ヘッダーを通じた mod_proxy_ftp FTP コマンドインジェクション

CVE-2009-3555 TLS：セッション再ネゴシエーションを介する MITM 攻撃

TLS/SSL（Transport Layer Security/Secure Sockets Layer）プロトコルがセッションの再ネゴシエーションを処理過程に欠陥が見つかりました。
中間攻撃者は、この欠陥を利用して、クライアントのセッションに任意のプレーンテキストを前置する可能性があります（例えば、 Web サイトへの HTTPS 接続）。これにより、攻撃者のリクエストをまるで被害者の認証情報を使用して認証されたかのようにサーバーに無理に処理させることができます。この更新は、クライアントが要求する再ネゴシエーションを拒否することで、mod_ssl を使用する HTTP サーバーとの SSL セッションに関する欠陥を部分的に軽減します。
（CVE-2009-3555）

注：この更新では、HTTPS サーバーの問題は完全には解決されません。
サーバー主導の再ネゴシエーションが必要な構成で、攻撃が可能なままです。詳細については、次の Knowledge Base の記事を参照してください：
http://kbase.redhat.com/faq/docs/DOC-20491

Apache の mod_deflate モジュールで、サービス拒否の欠陥が見つかりました。
このモジュールは、圧縮が完了する前にコンテンツを要求しているネットワーク接続が切断された場合でも、圧縮が完了するまで容量の大きいファイルを圧縮し続けました。これにより、mod_deflate が容量の大きいファイルで有効となっている場合は、mod_deflate に膨大な CPU 時間を費やす可能性があります。（CVE-2009-1891）- SL4 のみ

Apache mod_proxy_ftp モジュールに NULL ポインターデリファレンスの欠陥が見つかりました。リクエストがプロキシされている悪意のある FTP サーバーが、この欠陥を利用して、 EPSV または PASV コマンドに対する無効な形式の返信により、httpd の子プロセスをクラッシュさせる可能性があります。これにより、限定的なサービス拒否が引き起こされます。（CVE-2009-3094）

Apache mod_proxy_ftp モジュールに第 2 の欠陥が見つかりました。リバースプロキシ構成で、リモートの攻撃者が、この欠陥を利用して、注意深く細工された HTTP Authorization ヘッダーを作成することにより、本来守られるべきアクセス制限をバイパスする可能性があります。これにより、攻撃者が任意のコマンドを FTP サーバーに送信することが可能になります。（CVE-2009-3095）

更新したパッケージをインストールした後、更新を有効にするために httpd デーモンを再起動する必要があります。

リモートホストは、セキュリティ更新 2010-002 を適用していないバージョンの Mac OS X 10.5 を実行しています。

このセキュリティ更新には以下の製品の修正が含まれます：

- AppKit
 - Application Firewall
 - AFP Server
 - Apache
 - ClamAV
 - CoreTypes
 - CUPS
 - curl
 - Cyrus IMAP
 - Cyrus SASL
 - Disk Images
 - Directory Services
 - Event Monitor
 - FreeRADIUS
 - FTP Server
 - iChat Server
 - Image RAW
 - Libsystem
 - Mail
 - Mailman
 - OS Services
 - Password Server
 - perl
 - PHP
 - PS Normalizer
 - Ruby
 - Server Admin
 - SMB
 - Tomcat
 - unzip
 - vim
 - Wiki Server
 - X11
 - xar

This update of the Apache webserver fixes various security issues :

  - the option IncludesNOEXEC could be bypassed via     .htaccess. (CVE-2009-1195)

  - mod_proxy could run into an infinite loop when used as     reverse proxy. (CVE-2009-1890)

  - mod_deflate continued to compress large files even after     a network connection was closed, causing mod_deflate to     consume large amounts of CPU. (CVE-2009-1891)

  - The ap_proxy_ftp_handler function in     modules/proxy/proxy_ftp.c in the mod_proxy_ftp module     allows remote FTP servers to cause a denial of service     (NULL pointer dereference and child process crash) via a     malformed reply to an EPSV command. (CVE-2009-3094)

  - access restriction bypass in mod_proxy_ftp module     (CVE-2009-3095)

This update of the Apache webserver fixes various security issues :

  - the option IncludesNOEXEC could be bypassed via     .htaccess (CVE-2009-1195) 

  - mod_proxy could run into an infinite loop when used as     reverse proxy (CVE-2009-1890) 

  - mod_deflate continued to compress large files even after     a network connection was closed, causing mod_deflate to     consume large amounts of CPU (CVE-2009-1891)

  - The ap_proxy_ftp_handler function in     modules/proxy/proxy_ftp.c in the mod_proxy_ftp module     allows remote FTP servers to cause a denial of service     (NULL pointer dereference and child process crash) via a     malformed reply to an EPSV command. (CVE-2009-3094)

  - access restriction bypass in mod_proxy_ftp module     (CVE-2009-3095)

This update contains the latest stable release of Apache httpd. Three security fixes are included, along with several minor bug fixes. A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handle session renegotiation. A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update partially mitigates this flaw for SSL sessions to HTTP servers using mod_ssl by rejecting client-requested renegotiation.
(CVE-2009-3555) Note: This update does not fully resolve the issue for HTTPS servers. An attack is still possible in configurations that require a server-initiated renegotiation A NULL pointer dereference flaw was found in the Apache mod_proxy_ftp module. A malicious FTP server to which requests are being proxied could use this flaw to crash an httpd child process via a malformed reply to the EPSV or PASV commands, resulting in a limited denial of service. (CVE-2009-3094) A second flaw was found in the Apache mod_proxy_ftp module. In a reverse proxy configuration, a remote attacker could use this flaw to bypass intended access restrictions by creating a carefully-crafted HTTP Authorization header, allowing the attacker to send arbitrary commands to the FTP server. (CVE-2009-3095) See the upstream changes file for further information: http://www.apache.org/dist/httpd/CHANGES_2.2.14

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

New httpd packages are available for Slackware 12.0, 12.1, 12.2, 13.0, and -current to fix security issues.

Updated httpd packages that fix multiple security issues are now available for Red Hat Enterprise Linux 3 and 5.

This update has been rated as having moderate security impact by the Red Hat Security Response Team.

The Apache HTTP Server is a popular Web server.

A flaw was found in the way the TLS/SSL (Transport Layer Security/Secure Sockets Layer) protocols handle session renegotiation.
A man-in-the-middle attacker could use this flaw to prefix arbitrary plain text to a client's session (for example, an HTTPS connection to a website). This could force the server to process an attacker's request as if authenticated using the victim's credentials. This update partially mitigates this flaw for SSL sessions to HTTP servers using mod_ssl by rejecting client-requested renegotiation.
(CVE-2009-3555)

Note: This update does not fully resolve the issue for HTTPS servers.
An attack is still possible in configurations that require a server-initiated renegotiation. Refer to the following Knowledgebase article for further information:
http://kbase.redhat.com/faq/docs/DOC-20491

A NULL pointer dereference flaw was found in the Apache mod_proxy_ftp module. A malicious FTP server to which requests are being proxied could use this flaw to crash an httpd child process via a malformed reply to the EPSV or PASV commands, resulting in a limited denial of service. (CVE-2009-3094)

A second flaw was found in the Apache mod_proxy_ftp module. In a reverse proxy configuration, a remote attacker could use this flaw to bypass intended access restrictions by creating a carefully-crafted HTTP Authorization header, allowing the attacker to send arbitrary commands to the FTP server. (CVE-2009-3095)

All httpd users should upgrade to these updated packages, which contain backported patches to correct these issues. After installing the updated packages, the httpd daemon must be restarted for the update to take effect.

The remote host is running a version of Mac OS X 10.6.x that is prior to 10.6.3.

Mac OS X 10.6.3 contains security fixes for the following products :

  - AFP Server
  - Apache
  - CoreAudio
  - CoreMedia
  - CoreTypes
  - CUPS
  - DesktopServices
  - Disk Images
  - Directory Services
  - Dovecot
  - Event Monitor
  - FreeRADIUS
  - FTP Server
  - iChat Server
  - ImageIO
  - Image RAW
  - Libsystem
  - Mail
  - MySQL
  - OS Services
  - Password Server
  - PHP
  - Podcast Producer
  - Preferences
  - PS Normalizer
  - QuickTime
  - Ruby
  - Server Admin
  - SMB
  - Tomcat
  - Wiki Server
  - X11

According to its banner, the version of Apache 2.2 installed on the remote host is older than 2.2.14.  Such versions are potentially affected by multiple vulnerabilities : 

  - Faulty error handling in the Solaris pollset support (Event Port backend) which could trigger hangs in the prefork and event MPMs on that platform (CVE-2009-2699)

  - The 'ap_proxy_ftp_handler' function in 'modules/proxy/proxy_ftp.c in the 'mod_proxy_ftp' module allows remote FTP servers to cause a denial-of-service via a malformed reply to an EPSV command. (CVE-2009-3094)

  - The 'mod_proxy_ftp' module allows remote attackers to bypass intended access restrictions and send arbitrary commands to an FTP server. (CVE-2009-3095)

NNM cannot determine whether the affected module is in use.

The remote host is running a version of Mac OS X 10.6 that is older than version 10.6.3.  Mac OS X 10.6.3 contains security fixes for the following products :

  - AFP Server

  - Apache

  - CoreAudio

  - CoreMedia

  - CoreTypes

  - CUPS

  - DesktopServices

  - Disk Images

  - Directory Services

  - Dovecot

  - Event Monitor

  - FreeRADIUS

  - FTP Server

  - iChat Server

  - ImageIO

  - Image RAW

  - Libsystem

  - Mail

  - MySQL

  - OS Services

  - Password Server

  - PHP

  - Podcast Producer

  - Preferences

  - PS Normalizer

  - QuickTime

  - Ruby

  - Server Admin

  - SMB

  - Tomcat

  - Wiki Server

  - X11

According to its banner, the version of Apache 2.2 installed on the remote host is older than 2.2.14.  Such versions are potentially affected by multiple vulnerabilities : 

  - Faulty error handling in the Solaris pollset support (Event Port backend) which could trigger hangs in the prefork and event MPMs on that platform (CVE-2009-2699)

  - The 'ap_proxy_ftp_handler' function in 'modules/proxy/proxy_ftp.c in the 'mod_proxy_ftp' module allows remote FTP servers to cause a denial-of-service via a malformed reply to an EPSV command. (CVE-2009-3094)

  - The 'mod_proxy_ftp' module allows remote attackers to bypass intended access restrictions and send arbitrary commands to an FTP server. (CVE-2009-3095)

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
60695	Scientific Linux セキュリティ更新：SL3.x、SL4.x、SL5.x i386/x86_64 の httpd	Nessus	Scientific Linux Local Security Checks	2012/8/1	2021/1/14	high
45373	Mac OS X 複数の脆弱性（セキュリティ更新 2010-002）	Nessus	MacOS X Local Security Checks	2010/3/29	2024/5/28	critical
42252	SuSE 11 Security Update : Apache 2 (SAT Patch Number 1417)	Nessus	SuSE Local Security Checks	2009/10/26	2021/1/14	high
42319	openSUSE 10 Security Update : apache2 (apache2-6576)	Nessus	SuSE Local Security Checks	2009/10/30	2021/1/14	high
43090	Fedora 10 : httpd-2.2.14-1.fc10 (2009-12604)	Nessus	Fedora Local Security Checks	2009/12/10	2021/1/11	high
43329	Fedora 12 : httpd-2.2.14-1.fc12 (2009-12606)	Nessus	Fedora Local Security Checks	2009/12/18	2021/1/11	high
44120	Slackware 12.0 / 12.1 / 12.2 / 13.0 / current : httpd (SSA:2010-024-01)	Nessus	Slackware Local Security Checks	2010/1/25	2021/1/14	high
42469	RHEL 3 / 5 : httpd (RHSA-2009:1579)	Nessus	Red Hat Local Security Checks	2009/11/12	2021/1/14	high
45372	Mac OS X 10.6.x < 10.6.3 Multiple Vulnerabilities	Nessus	MacOS X Local Security Checks	2010/3/29	2024/5/28	critical
5196	Apache < 2.2.14 Multiple Vulnerabilities	Nessus Network Monitor	Web Servers	2009/10/6	2019/3/6	medium
5489	Mac OS X < 10.6.3 Multiple Vulnerabilities	Nessus Network Monitor	Generic	2010/3/30	2019/3/6	critical
800574	Apache < 2.2.14 Multiple Vulnerabilities	Log Correlation Engine	Web Servers	2009/10/6		high

检测

插件搜索

high

critical

high

high

high

high

high

high

critical

medium

critical

high