Executive Summary
Summary | |
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Title | New PHP packages fix several vulnerabilities |
Informations | |||
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Name | DSA-168 | First vendor Publication | 2002-09-18 |
Vendor | Debian | Last vendor Modification | 2002-09-18 |
Severity (Vendor) | N/A | Revision | 1 |
Security-Database Scoring CVSS v3
Cvss vector : N/A | |||
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Overall CVSS Score | NA | ||
Base Score | NA | Environmental Score | NA |
impact SubScore | NA | Temporal Score | NA |
Exploitabality Sub Score | NA | ||
Calculate full CVSS 3.0 Vectors scores |
Security-Database Scoring CVSS v2
Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P) | |||
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Cvss Base Score | 7.5 | Attack Range | Network |
Cvss Impact Score | 6.4 | Attack Complexity | Low |
Cvss Expoit Score | 10 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Wojciech Purczynski found out that it is possible for scripts to pass arbitrary text to sendmail as commandline extension when sending a mail through PHP even when safe_mode is turned on. Passing 5th argument should be disabled if PHP is configured in safe_mode, which is the case for newer PHP versions and for the versions below. This does not affect PHP3, though. Wojciech Purczynski also found out that arbitrary ASCII control characters may be injected into string arguments of mail() function. If mail() arguments are taken from user's input it may give the user ability to alter message content including mail headers. Ulf Harnhammar discovered that file() and fopen() are vulnerable to CRLF injection. An attacker could use it to escape certain restrictions and add arbitrary text to alleged HTTP requests that are passed through. However this only happens if something is passed to these functions which is neither a valid file name nor a valid url. Any string that contains control chars cannot be a valid url. Before you pass a string that should be an url to any function you must use urlencode() to encode it. Three problems have been identified in PHP: 1. The mail() function can allow arbitrary email headers to be specified if a recipient address or subject contains CR/LF characters. 2. The mail() function does not properly disable the passing of arbitrary command-line options to sendmail when running in Safe Mode. 3. The fopen() function, when retrieving a URL, can allow manipulation of the request for the resource through a URL containing CR/LF characters. For example, headers could be added to an HTTP request. These problems have been fixed in version 3.0.18-23.1woody1 for PHP3 and 4.1.2-5 for PHP4 for the current stable distribution (woody), in version 3.0.18-0potato1.2 for PHP3 and 4.0.3pl1-0potato4 for PHP4 in the old stable distribution (potato) and in version 3.0.18-23.2 for PHP3 and 4.2.3-3 for PHP4 for the unstable distribution (sid). We recommend that you upgrade your PHP packages. 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 2.2 alias potato |
Original Source
Url : http://www.debian.org/security/2002/dsa-168 |
CAPEC : Common Attack Pattern Enumeration & Classification
Id | Name |
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CAPEC-15 | Command Delimiters |
CAPEC-34 | HTTP Response Splitting |
CAPEC-41 | Using Meta-characters in E-mail Headers to Inject Malicious Payloads |
CAPEC-81 | Web Logs Tampering |
CAPEC-88 | OS Command Injection |
CAPEC-93 | Log Injection-Tampering-Forging |
CAPEC-133 | Try All Common Application Switches and Options |
CWE : Common Weakness Enumeration
% | Id | Name |
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100 % | CWE-88 | Argument Injection or Modification |
CPE : Common Platform Enumeration
OpenVAS Exploits
Date | Description |
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2008-01-17 | Name : Debian Security Advisory DSA 168-1 (PHP3, PHP4) File : nvt/deb_168_1.nasl |
2005-11-03 | Name : PHP Mail Function Header Spoofing Vulnerability File : nvt/php_mail_func_header_spoof.nasl |
Open Source Vulnerability Database (OSVDB)
Id | Description |
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59760 | PHP fopen / file Functions CRLF Injection |
2160 | PHP mail Function CRLF Injection A flaw exists in PHP which may allow an attacker to add arbitrary data to headers constructed by PHP when remote resources are referenced using these functions. In this way, a PHP script which uses the vulnerable function with the allow_url_fopen() directive enabled may be turned into a proxy, since the attacker is able to construct an arbitrary header to be sent with the request. This may be accomplished by building an arbitrary header using CRLF injection. |
2111 | PHP Mail Function ASCII Control Character Header Spoofing PHP 4.x to 4.2.2 contains a flaw that exist in the mail() function that does not properly sanitize user input. It is possible for a user may pass ASCII control characters to the mail() function that could alter the headers of email. This could result in spoofed mail headers. |
Snort® IPS/IDS
Date | Description |
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2014-01-10 | PHP function CRLF injection attempt RuleID : 12360 - Revision : 11 - Type : SERVER-WEBAPP |
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2004-09-29 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-168.nasl - Type : ACT_GATHER_INFO |
2004-07-31 | Name : The remote Mandrake Linux host is missing one or more security updates. File : mandrake_MDKSA-2003-082.nasl - Type : ACT_GATHER_INFO |
2004-07-25 | Name : The remote host is missing a vendor-supplied security patch File : suse_SA_2002_036.nasl - Type : ACT_GATHER_INFO |
2004-07-06 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2002-214.nasl - Type : ACT_GATHER_INFO |
2003-03-23 | Name : A remote web application can be used to forge data. File : php_mail_func_header_spoof.nasl - Type : ACT_GATHER_INFO |
2002-07-22 | Name : Arbitrary code may be run on the remote host. File : php_4_2_x_malformed_POST.nasl - Type : ACT_DENIAL |
Alert History
Date | Informations |
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2014-02-17 11:28:02 |
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