Debian Security Advisory DSA 168-1 (PHP3, PHP4)

Published: 2008-01-17 21:24:46
CVE Author: NIST National Vulnerability Database

CVSS Base Vector:


Technical Details:
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 Linux Distribution Packages.

The remote host is missing an update to PHP3, PHP4 announced via advisory DSA 168-1.

Detection Type:
Linux Distribution Package

Solution Type:
Vendor Patch

NIST (National Institute of Standards and Technology) NVD (National Vulnerability Database)

SecurityFocus Bugtraq ID:

CVSS Score
Debian Local Security Checks

Free Vulnerability Scanning, Assessment and Management

Mageni's Platform is packed with all the features you need to scan, assess and manage vulnerabilities like this - it is free, open source, lightning fast, reliable and scalable.


Frequently Asked Questions

No, you can scan concurrently as many assets as you want. Please note that you must be aware of the hardware requeriments of the platform to ensure a good performance.

No, you can add as many assest as you want. It doesn't matters if you have millions of assets, we won't charge you for that.

No. The software is completely free. We have no intention to charge you to use the software, in fact - it completely goes against our beliefs and business model.

A vulnerability is defined in the ISO 27002 standard as “A weakness of an asset or group of assets that can be exploited by one or more threats” (International Organization for Standardization, 2005)

We generate revenue by providing support and other services for customers that require a subscription so they get guaranteed support and enterprise services. To use Mageni's Platform is completely free, with no limits at all.

Yes. Mageni understands that there are professionals and businesses that need commercial support so Mageni provides an active support subscription with everything needed to run Mageni's Platform reliably and securely. More than software, it's access to security experts, knowledge resources, security updates, and support tools you can't get anywhere else. The subscription includes:

  • Ongoing delivery
    • Patches
    • Bug fixes
    • Updates
    • Upgrades
  • Technical support
    • 24/7 availability
    • Unlimited Incidents
    • Specialty-based routing
    • Multi-Channel
  • Commitments
    • Software certifications
    • Software assurance
    • SLA

No, we don't store the information of your vulnerabilities in our servers.

Vulnerability management is the process in which vulnerabilities in IT are identified and the risks of these vulnerabilities are evaluated. This evaluation leads to correcting the vulnerabilities and removing the risk or a formal risk acceptance by the management of an organization. The term vulnerability management is often confused with vulnerability scanning. Despite the fact both are related, there is an important difference between the two. Vulnerability scanning consists of using a computer program to identify vulnerabilities in networks, computer infrastructure or applications. Vulnerability management is the process surrounding vulnerability scanning, also taking into account other aspects such as risk acceptance, remediation etc. Source: "Implementing a Vulnerability Management Process". SANS Institute.

I am ready to start scanning for vulnerabilities