CVE-2007-2727
First published: Wed May 16 2007(Updated: )
The mcrypt_create_iv function in ext/mcrypt/mcrypt.c in PHP before 4.4.7, 5.2.1, and possibly 5.0.x and other PHP 5 versions, calls php_rand_r with an uninitialized seed variable and therefore always generates the same initialization vector (IV), which might allow context-dependent attackers to decrypt certain data more easily because of the guessable encryption keys.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | =4.3.9 | |
| PHP | =4.2.0 | |
| PHP | =4.1.0 | |
| PHP | =4.3.4 | |
| PHP | =4.0.4 | |
| PHP | =4.3.0 | |
| PHP | =4.0.5 | |
| PHP | =4.3.6 | |
| PHP | =4.0.7-rc2 | |
| PHP | =4.3.7 | |
| PHP | =4.0.7-rc1 | |
| PHP | =4.2.2 | |
| PHP | =4.3.2 | |
| PHP | =4.3.11 | |
| PHP | =4.0.3-patch1 | |
| PHP | =4.0.7 | |
| PHP | =4.0.2 | |
| PHP | =4.3.3 | |
| PHP | =4.1.1 | |
| PHP | =4.2.3 | |
| PHP | =4.0.1-patch1 | |
| PHP | =4.0.1-patch2 | |
| PHP | =4.0.6 | |
| PHP | =4.1.2 | |
| PHP | =4.0.7-rc3 | |
| PHP | =4.3.1 | |
| PHP | =4.3.10 | |
| PHP | =4.2.1 | |
| PHP | =4.0.1 | |
| PHP | =4.0.3 | |
| PHP | =4.3.8 | |
| PHP | =4.3.5 | |
| PHP | >=4.4.0<4.4.7 | |
| PHP | >=5.0.0<5.2.2 |
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Reference Links
- http://blog.php-security.org/archives/80-Watching-the-PHP-CVS.html
- http://www.fortheloot.com/public/mcrypt.patch
- http://bugs.php.net/bug.php?id=40999
- http://cvs.php.net/viewvc.cgi/php-src/ext/mcrypt/mcrypt.c?r1=1.91.2.3.2.9&r2=1.91.2.3.2.10
- http://www.php.net/ChangeLog-5.php
- http://www.securityfocus.com/bid/23984
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:187
- http://www.novell.com/linux/security/advisories/2007_15_sr.html
- http://secunia.com/advisories/26895
- http://osvdb.org/36087
Frequently Asked Questions
What is the severity of CVE-2007-2727?
CVE-2007-2727 is classified as a medium severity vulnerability due to its impact on cryptographic operations.
How do I fix CVE-2007-2727?
To fix CVE-2007-2727, upgrade PHP to version 4.4.7 or later, or 5.2.1 or later.
What versions of PHP are affected by CVE-2007-2727?
CVE-2007-2727 affects PHP versions before 4.4.7, and 5.2.1, including multiple earlier versions.
What is the impact of exploiting CVE-2007-2727?
Exploiting CVE-2007-2727 can lead to the generation of identical initialization vectors, which compromises encryption security.
Are there any known exploits for CVE-2007-2727?
As of now, there no specific public exploits for CVE-2007-2727, but its nature can potentially allow for predictable cryptographic operations.
- agent/weakness
- agent/references
- agent/severity
- agent/author
- agent/type
- agent/event
- agent/description
- agent/remedy
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/nvd-historical
- agent/software-canonical-lookup-request
- collector/nvd-index
- vendor/php
- canonical/php
- version/php/4.3.9
- version/php/4.2.0
- version/php/4.1.0
- version/php/4.3.4
- version/php/4.0.4
- version/php/4.3.0
- version/php/4.0.5
- version/php/4.3.6
- version/php/4.0.7-rc2
- version/php/4.3.7
- version/php/4.0.7-rc1
- version/php/4.2.2
- version/php/4.3.2
- version/php/4.3.11
- version/php/4.0.3-patch1
- version/php/4.0.7
- version/php/4.0.2
- version/php/4.3.3
- version/php/4.1.1
- version/php/4.2.3
- version/php/4.0.1-patch1
- version/php/4.0.1-patch2
- version/php/4.0.6
- version/php/4.1.2
- version/php/4.0.7-rc3
- version/php/4.3.1
- version/php/4.3.10
- version/php/4.2.1
- version/php/4.0.1
- version/php/4.0.3
- version/php/4.3.8
- version/php/4.3.5
- version/php/4.4.0
- version/php/5.0.0