The remote Redhat Enterprise Linux 4 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2006:0276 advisory.

    PHP is an HTML-embedded scripting language commonly used with the Apache     HTTP Web server.

    The phpinfo() PHP function did not properly sanitize long strings.  An     attacker could use this to perform cross-site scripting attacks against     sites that have publicly-available PHP scripts that call phpinfo().
    (CVE-2006-0996)

    The html_entity_decode() PHP function was found to not be binary safe. An     attacker could use this flaw to disclose a certain part of the memory.  In     order for this issue to be exploitable the target site would need to have a     PHP script which called the html_entity_decode() function with untrusted     input from the user and displayed the result.  (CVE-2006-1490)

    The error handling output was found to not properly escape HTML output in     certain cases.  An attacker could use this flaw to perform cross-site     scripting attacks against sites where both display_errors and html_errors     are enabled.  (CVE-2006-0208)

    An input validation error was found in the mb_send_mail() function.  An     attacker could use this flaw to inject arbitrary headers in a mail sent via     a script calling the mb_send_mail() function where the To parameter can     be controlled by the attacker.  (CVE-2005-3883)

    A buffer overflow flaw was discovered in uw-imap, the University of     Washington's IMAP Server.  php-imap is compiled against the static c-client     libraries from imap and therefore needed to be recompiled against the fixed     version.  This issue only affected Red Hat Enterprise Linux 3.
    (CVE-2005-2933).

    Users of PHP should upgrade to these updated packages, which contain     backported patches that resolve these issues.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Updated PHP packages that fix multiple security issues are now available for Red Hat Enterprise Linux 3 and 4.

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

PHP is an HTML-embedded scripting language commonly used with the Apache HTTP Web server.

The phpinfo() PHP function did not properly sanitize long strings. An attacker could use this to perform cross-site scripting attacks against sites that have publicly-available PHP scripts that call phpinfo(). (CVE-2006-0996)

The html_entity_decode() PHP function was found to not be binary safe.
An attacker could use this flaw to disclose a certain part of the memory. In order for this issue to be exploitable the target site would need to have a PHP script which called the 'html_entity_decode()' function with untrusted input from the user and displayed the result. (CVE-2006-1490)

The error handling output was found to not properly escape HTML output in certain cases. An attacker could use this flaw to perform cross-site scripting attacks against sites where both display_errors and html_errors are enabled. (CVE-2006-0208)

An input validation error was found in the 'mb_send_mail()' function.
An attacker could use this flaw to inject arbitrary headers in a mail sent via a script calling the 'mb_send_mail()' function where the 'To' parameter can be controlled by the attacker. (CVE-2005-3883)

A buffer overflow flaw was discovered in uw-imap, the University of Washington's IMAP Server. php-imap is compiled against the static c-client libraries from imap and therefore needed to be recompiled against the fixed version. This issue only affected Red Hat Enterprise Linux 3. (CVE-2005-2933).

Users of PHP should upgrade to these updated packages, which contain backported patches that resolve these issues.

Eric Romang discovered a local Denial of Service vulnerability in the handling of the 'session.save_path' parameter in PHP's Apache 2.0 module. By setting this parameter to an invalid value in an .htaccess file, a local user could crash the Apache server. (CVE-2005-3319)

A Denial of Service flaw was found in the EXIF module. By sending an image with specially crafted EXIF data to a PHP program that automatically evaluates them (e. g. a web gallery), a remote attacker could cause an infinite recursion in the PHP interpreter, which caused the web server to crash. (CVE-2005-3353)

Stefan Esser reported a Cross Site Scripting vulnerability in the phpinfo() function. By tricking a user into retrieving a specially crafted URL to a PHP page that exposes phpinfo(), a remote attacker could inject arbitrary HTML or web script into the output page and possibly steal private data like cookies or session identifiers.
(CVE-2005-3388)

Stefan Esser discovered a vulnerability of the parse_str() function when it is called with just one argument. By calling such programs with specially crafted parameters, a remote attacker could enable the 'register_globals' option which is normally turned off for security reasons. Once this option is enabled, the remote attacker could exploit other security flaws of PHP programs which are normally protected by 'register_globals' being deactivated. (CVE-2005-3389)

Stefan Esser discovered that a remote attacker could overwrite the $GLOBALS array in PHP programs that allow file uploads and run with 'register_globals' enabled. Depending on the particular application, this can lead to unexpected vulnerabilities. (CVE-2005-3390)

The 'gd' image processing and cURL modules did not properly check processed file names against the 'open_basedir' and 'safe_mode' restrictions, which could be exploited to circumvent these limitations. (CVE-2005-3391)

Another bypass of the 'open_basedir' and 'safe_mode' restrictions was found in virtual() function. A local attacker could exploit this to circumvent these restrictions with specially crafted PHP INI files when virtual Apache 2.0 hosts are used. (CVE-2005-3392)

The mb_send_mail() function did not properly check its arguments for invalid embedded line breaks. By setting the 'To:' field of an email to a specially crafted value in a PHP web mail application, a remote attacker could inject arbitrary headers into the sent email.
(CVE-2005-3883).

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

根據其標題，遠端主機上安裝的 PHP 5.x 版本比 5.1.0 舊。這些版本可能受到多個弱點影響：

  - phpinfo() 中存在一個跨網站指令碼弱點。

  - ext/curl 和 ext/gd 中存在多個 safe_mode/open_basedir 繞過弱點。

  - 可能會覆寫 $GLOBALS，這是因為檔案上傳處理函式 extract() 和 import_request_variables() 中的一個問題所導致。

  - 當要求因為 parse_str() 呼叫期間的 memory_limit 限制而終止時，存在一個問題，此問題可導致註冊全域啟動。

  - 在允許的 basedir 中的結尾斜線存在一個問題。

  - Apache 2 上呼叫 virtual() 時存在一個問題，此問題允許攻擊者繞過特定的組態指示詞，例如 safe_mode 或 open_basedir。

  - mb_send_mail() 函式中存在一個可能的標頭插入。
    
  - Apache 模組中的 apache2handler SAPI 允許攻擊者造成拒絕服務。

バナーによると、リモートホストにインストールされている PHP 5.x のバージョンは 5.1.0 より前です。そのようなバージョンは、以下の複数の脆弱性の影響を受けることがあります。

  - phpinfo() にクロスサイトスクリプティングの脆弱性が存在します。

  - 複数の safe_mode/open_basedir バイパスの脆弱性が、ext/curl および ext/gd に存在します。

  - ファイルアップロード処理、extract()、およびimport_request_variables()の問題のために、$GLOBALSを上書きできる可能性があります。

  - 特定の parse_str() 呼び出し中の memory_limit 制約のためにリクエストが終了した際の問題が存在し、レジスターグローバルがオンにされる可能性があります。

  - 許可された basedir の中の末尾のスラッシュに関して問題が存在します。

  - Apache 2 での virtual() の呼び出しに関して問題が存在し、攻撃者が、safe_mode や open_basedir などの特定の構成ディレクティブをバイパスする可能性があります。

  - mb_send_mail() 関数にヘッダーインジェクションの可能性があります。
    
  - Apache モジュールの apache2handler SAPI のために、攻撃者がサービス拒否を引き起こす可能性があります。

A CRLF injection vulnerability in the mb_send_mail function in PHP before 5.1.0 might allow remote attackers to inject arbitrary e-mail headers via line feeds (LF) in the 'To' address argument, when using sendmail as the MTA (mail transfer agent).

The updated packages have been patched to address this issue. Once the new packages have been installed, you will need to restart your Apache server using 'service httpd restart' in order for the new packages to take effect.

According to its banner, the version of PHP 5.x installed on the remote host is older than 5.1.0.  Such versions may be affected by multiple vulnerabilities :

  - A cross-site scripting vulnerability exists in     phpinfo().

  - Multiple safe_mode/open_basedir bypass vulnerabilities     exist in ext/curl and ext/gd.

  - It is possible to overwrite $GLOBALS due to an issue in     file upload handling, extract(), and     import_request_variables().

  - An issue exists when a request is terminated due to     memory_limit constraints during certain parse_str()     calls, which could lead to register globals being turned     on.

  - An issue exists with trailing slashes in allowed     basedirs.

  - An issue exists with calling virtual() on Apache 2, which     allows an attacker to bypass certain configuration     directives like safe_mode or open_basedir.

  - A possible header injection exists in the mb_send_mail()     function.
    
  - The apache2handler SAPI in the Apache module allows     attackers to cause a denial of service.

根据其标题，远程主机上安装的 PHP 5.x 版本低于 5.1.0。此类版本可能受到多种漏洞的影响：

  - phpinfo() 中存在一个跨站脚本漏洞。

  - ext/curl 和 ext/gd 中存在多个 safe_mode/open_basedir 绕过漏洞。

  - 因为文件上传处理 extract() 以及 import_request_variables() 中的一个问题，可能覆盖 $GLOBALS。

  - 在 parse_str() 调用期间，当请求因为 memory_limit 限制而终止时存在一个问题，可导致注册全局启动。

  - 允许的 basedir 中的尾斜杠存在一个问题。

  - Apache 2 上调用 virtual() 时存在一个问题，可允许攻击者绕过特定的配置指令，例如 safe_mode 或 open_basedir。

  - mb_send_mail() 函数中存在一个可能的标头注入。
    
  - Apache 模块中的 apache2handler SAPI 允许攻击者造成拒绝服务。

The remote host is running a version of PHP that is older than 5.0.6. This version has a flaw where remote attackers can reenable the 'register_globals' parameter.  In addition, a remote attacker may be able to overwrite the 'GLOBAL' variable.  This may lead to another more serious exploitation.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
21287	RHEL 4 : php (RHSA-2006:0276)	Nessus	Red Hat Local Security Checks	2006/4/26	2024/11/4	medium
21897	CentOS 3 / 4 : php (CESA-2006:0276)	Nessus	CentOS Local Security Checks	2006/7/3	2021/1/4	high
20776	Ubuntu 4.10 / 5.04 / 5.10 : php4, php5 vulnerabilities (USN-232-1)	Nessus	Ubuntu Local Security Checks	2006/1/21	2021/1/19	high
17711	PHP 5.x < 5.1.0 多個弱點	Nessus	CGI abuses	2011/11/18	2025/5/26	medium
17711	PHP 5.x < 5.1.0の複数の脆弱性	Nessus	CGI abuses	2011/11/18	2025/5/26	medium
20469	Mandrake Linux Security Advisory : php (MDKSA-2005:238)	Nessus	Mandriva Local Security Checks	2006/1/15	2021/1/6	medium
17711	PHP 5.x < 5.1.0 Multiple Vulnerabilities	Nessus	CGI abuses	2011/11/18	2025/5/26	medium
17711	PHP 5.x < 5.1.0 多个漏洞	Nessus	CGI abuses	2011/11/18	2025/5/26	medium
801113	PHP < 5.0.6 GLOBAL Variable Overwrite	Log Correlation Engine	Web Servers			high

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