CVE-2015-4642: OS Command Injection
First published: Mon May 16 2016(Updated: )
The escapeshellarg function in ext/standard/exec.c in PHP before 5.4.42, 5.5.x before 5.5.26, and 5.6.x before 5.6.10 on Windows allows remote attackers to execute arbitrary OS commands via a crafted string to an application that accepts command-line arguments for a call to the PHP system function.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Microsoft Windows | ||
| PHP | <=5.4.41 | |
| PHP | =5.5.0 | |
| PHP | =5.5.1 | |
| PHP | =5.5.2 | |
| PHP | =5.5.3 | |
| PHP | =5.5.4 | |
| PHP | =5.5.5 | |
| PHP | =5.5.6 | |
| PHP | =5.5.7 | |
| PHP | =5.5.8 | |
| PHP | =5.5.9 | |
| PHP | =5.5.10 | |
| PHP | =5.5.11 | |
| PHP | =5.5.12 | |
| PHP | =5.5.13 | |
| PHP | =5.5.14 | |
| PHP | =5.5.15 | |
| PHP | =5.5.16 | |
| PHP | =5.5.17 | |
| PHP | =5.5.18 | |
| PHP | =5.5.19 | |
| PHP | =5.5.20 | |
| PHP | =5.5.21 | |
| PHP | =5.5.22 | |
| PHP | =5.5.23 | |
| PHP | =5.5.24 | |
| PHP | =5.5.25 | |
| PHP | =5.6.0 | |
| PHP | =5.6.1 | |
| PHP | =5.6.2 | |
| PHP | =5.6.3 | |
| PHP | =5.6.4 | |
| PHP | =5.6.5 | |
| PHP | =5.6.6 | |
| PHP | =5.6.7 | |
| PHP | =5.6.8 | |
| PHP | =5.6.9 |
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Reference Links
- http://git.php.net/?p=php-src.git;a=commit;h=d2ac264ffea5ca2e85640b6736e0c7cd4ee9a4a9
- http://openwall.com/lists/oss-security/2015/06/18/6
- http://php.net/ChangeLog-5.php
- http://www.securityfocus.com/bid/75290
- http://www.securitytracker.com/id/1032709
- https://bugs.php.net/bug.php?id=69646
- https://security.gentoo.org/glsa/201606-10
- http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=d2ac264ffea5ca2e85640b6736e0c7cd4ee9a4a9
Frequently Asked Questions
What is the severity of CVE-2015-4642?
CVE-2015-4642 is considered a high severity vulnerability due to its potential to allow remote attackers to execute arbitrary OS commands.
How do I fix CVE-2015-4642?
To mitigate CVE-2015-4642, upgrade to PHP versions 5.4.42, 5.5.26, or 5.6.10 and later.
Which PHP versions are affected by CVE-2015-4642?
CVE-2015-4642 affects PHP versions before 5.4.42, all 5.5.x versions before 5.5.26, and all 5.6.x versions before 5.6.10.
Can CVE-2015-4642 be exploited on Windows systems?
Yes, CVE-2015-4642 can be exploited on Windows systems running vulnerable versions of PHP.
What types of applications are at risk from CVE-2015-4642?
Applications that utilize the PHP system function and pass user input to it are at risk of CVE-2015-4642.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/severity
- agent/last-modified-date
- agent/author
- agent/weakness
- agent/references
- agent/description
- agent/event
- agent/first-publish-date
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/microsoft
- canonical/microsoft windows
- vendor/php
- canonical/php
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- version/php/5.5.16
- version/php/5.5.17
- version/php/5.5.18
- version/php/5.5.19
- version/php/5.5.20
- version/php/5.5.21
- version/php/5.5.22
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- version/php/5.6.9