CVE-2007-2727: Low severity PHP PHP vulnerability

Published May 16, 2007
·
Updated

The mcryptcreateiv 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 phprandr 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.

Affected Software

34 affected components
PHP PHP=4.3.9
PHP PHP=4.2.0
PHP PHP=4.1.0
PHP PHP=4.3.4
PHP PHP=4.0.4
PHP PHP=4.3.0
PHP PHP=4.0.5
PHP PHP=4.3.6
PHP PHP=4.0.7-rc2
PHP PHP=4.3.7
PHP PHP=4.0.7-rc1
PHP PHP=4.2.2
PHP PHP=4.3.2
PHP PHP=4.3.11
PHP PHP=4.0.3-patch1
PHP PHP=4.0.7
PHP PHP=4.0.2
PHP PHP=4.3.3
PHP PHP=4.1.1
PHP PHP=4.2.3
PHP PHP=4.0.1-patch1
PHP PHP=4.0.1-patch2
PHP PHP=4.0.6
PHP PHP=4.1.2
PHP PHP=4.0.7-rc3
PHP PHP=4.3.1
PHP PHP=4.3.10
PHP PHP=4.2.1
PHP PHP=4.0.1
PHP PHP=4.0.3
PHP PHP=4.3.8
PHP PHP=4.3.5
PHP PHP>=4.4.0<4.4.7
PHP PHP>=5.0.0<5.2.2

Remediation

Patch Available

http://www.fortheloot.com/public/mcrypt.patch

Event History

May 16, 2007
CVE Published
via MITRE·10:00 PM
Data Sourced
via MITRE·10:00 PM
Description

Frequently Asked Questions

1

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.

2

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.

3

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.

4

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.

5

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.

Company

Resources

Contact

SecAlerts Pty Ltd.
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Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
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