CVE-2014-4721: Infoleak
First published: Sun Jul 06 2014(Updated: )
The phpinfo implementation in ext/standard/info.c in PHP before 5.4.30 and 5.5.x before 5.5.14 does not ensure use of the string data type for the PHP_AUTH_PW, PHP_AUTH_TYPE, PHP_AUTH_USER, and PHP_SELF variables, which might allow context-dependent attackers to obtain sensitive information from process memory by using the integer data type with crafted values, related to a "type confusion" vulnerability, as demonstrated by reading a private SSL key in an Apache HTTP Server web-hosting environment with mod_ssl and a PHP 5.3.x mod_php.
Credit: security@debian.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | >=5.3.0<5.3.29 | |
| PHP | >=5.4.0<5.4.30 | |
| PHP | >=5.5.0<5.5.14 | |
| Debian Linux | =7.0 | |
| Debian Linux | =8.0 |
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Reference Links
- http://lists.opensuse.org/opensuse-updates/2014-07/msg00035.html
- http://lists.opensuse.org/opensuse-updates/2014-09/msg00046.html
- http://rhn.redhat.com/errata/RHSA-2014-1765.html
- http://rhn.redhat.com/errata/RHSA-2014-1766.html
- http://secunia.com/advisories/54553
- http://secunia.com/advisories/59794
- http://secunia.com/advisories/59831
- http://twitter.com/mikispag/statuses/485713462258302976
- http://www-01.ibm.com/support/docview.wss?uid=swg21683486
- http://www.debian.org/security/2014/dsa-2974
- http://www.oracle.com/technetwork/topics/security/bulletinjan2015-2370101.html
- http://www.php.net/ChangeLog-5.php
- https://bugs.php.net/bug.php?id=67498
- https://www.sektioneins.de/en/blog/14-07-04-phpinfo-infoleak.html
Frequently Asked Questions
What is the severity of CVE-2014-4721?
CVE-2014-4721 has a critical severity rating as it may allow attackers to access sensitive information.
Which versions of PHP are affected by CVE-2014-4721?
CVE-2014-4721 affects PHP versions before 5.4.30 and 5.5.x before 5.5.14.
How do I fix CVE-2014-4721?
To fix CVE-2014-4721, upgrade PHP to a version that is 5.4.30 or later, or 5.5.14 or later.
What are the potential impacts of CVE-2014-4721?
The potential impacts of CVE-2014-4721 include exposure of sensitive data such as authentication credentials.
Are there any specific mitigations for CVE-2014-4721?
The best mitigation for CVE-2014-4721 is to ensure the use of secure PHP versions and implement proper security configurations.
- agent/references
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/author
- agent/severity
- agent/last-modified-date
- agent/weakness
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/tags
- agent/softwarecombine
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/php
- canonical/php
- version/php/5.3.0
- version/php/5.4.0
- version/php/5.5.0
- vendor/debian
- canonical/debian linux
- version/debian linux/7.0
- version/debian linux/8.0