National Vulnerability Database (NVD) National Vulnerability Database (CVE-2007-2727)

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NVD is the U.S. government repository of standards based vulnerability management data. This data enables automation of vulnerability management, security measurement, and compliance (e.g. FISMA).

Resource Status

NVD contains:

CVE Vulnerabilities: 56741
Checklists: 221
US-CERT Alerts: 246
US-CERT Vuln Notes: 2727
OVAL Queries: 8140
CPE Names: 73736

Last updated: Wed Jun 19 22:59:13 EDT 2013

CVE Publication rate: 11.83

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Workload Index

Vulnerability Workload Index: 5.55

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NIST Security Configuration Checklists - CSD

National Cyber Awareness System

Vulnerability Summary for CVE-2007-2727

Original release date:05/16/2007

Last revised:11/06/2012

Source: US-CERT/NIST

Overview

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.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:2.6 (LOW) (AV:N/AC:H/Au:N/C:P/I:N/A:N) (legend)

Impact Subscore: 2.9

Exploitability Subscore: 4.9

CVSS Version 2 Metrics:

Access Vector: Network exploitable

Access Complexity: High

Authentication: Not required to exploit

Impact Type:Allows unauthorized disclosure of information

Vendor Statements (disclaimer)

Official Statement from Red Hat (06/26/2008)

Not vulnerable. This issue did not affect the versions of php as shipped with Red Hat Enterprise Linux 2.1, 3, 4, or 5, or Red Hat Application Stack 1, or 2, as the packages shipped are not compiled with the mcrypt extension affected by this issue.

References to Advisories, Solutions, and Tools

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External Source: MISC

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

Type: Patch Information; Exploit

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

External Source: BID

Name: 23984

Hyperlink:http://www.securityfocus.com/bid/23984

External Source: CONFIRM

Name: http://www.php.net/ChangeLog-5.php

Hyperlink:http://www.php.net/ChangeLog-5.php

External Source: OSVDB

Name: 36087

Hyperlink:http://osvdb.org/36087

External Source: CONFIRM

Name: 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

Hyperlink: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

External Source: CONFIRM

Name: http://bugs.php.net/bug.php?id=40999

Hyperlink:http://bugs.php.net/bug.php?id=40999

External Source: SUSE

Name: SUSE-SR:2007:015

Hyperlink:http://www.novell.com/linux/security/advisories/2007_15_sr.html

External Source: MANDRIVA

Name: MDKSA-2007:187

Hyperlink:http://www.mandriva.com/security/advisories?name=MDKSA-2007:187

External Source: SECUNIA

Name: 26895

Hyperlink:http://secunia.com/advisories/26895

Vulnerable software and versions

Configuration 1

* cpe:/a:php:php:4.0.1

* cpe:/a:php:php:4.0.1:patch1

* cpe:/a:php:php:4.0.1:patch2

* cpe:/a:php:php:4.0.2

* cpe:/a:php:php:4.0.3

* cpe:/a:php:php:4.0.3:patch1

* cpe:/a:php:php:4.0.4

* cpe:/a:php:php:4.0.5

* cpe:/a:php:php:4.0.6

* cpe:/a:php:php:4.0.7

* cpe:/a:php:php:4.0.7:rc1

* cpe:/a:php:php:4.0.7:rc2

* cpe:/a:php:php:4.0.7:rc3

* cpe:/a:php:php:4.1.0

* cpe:/a:php:php:4.1.1

* cpe:/a:php:php:4.1.2

* cpe:/a:php:php:4.2.0

* cpe:/a:php:php:4.2.1

* cpe:/a:php:php:4.2.2

* cpe:/a:php:php:4.2.3

* cpe:/a:php:php:4.3

* cpe:/a:php:php:4.3.1

* cpe:/a:php:php:4.3.10

* cpe:/a:php:php:4.3.11

* cpe:/a:php:php:4.3.2

* cpe:/a:php:php:4.3.3

* cpe:/a:php:php:4.3.4

* cpe:/a:php:php:4.3.5

* cpe:/a:php:php:4.3.6

* cpe:/a:php:php:4.3.7

* cpe:/a:php:php:4.3.8

* cpe:/a:php:php:4.3.9

* cpe:/a:php:php:4.4.0

* cpe:/a:php:php:4.4.1

* cpe:/a:php:php:4.4.2

* cpe:/a:php:php:4.4.3

* cpe:/a:php:php:4.4.4

* cpe:/a:php:php:4.4.5

* cpe:/a:php:php:4.4.6

* cpe:/a:php:php:5.0.0

* cpe:/a:php:php:5.0.0:rc1

* cpe:/a:php:php:5.0.0:rc2

* cpe:/a:php:php:5.0.0:rc3

* cpe:/a:php:php:5.0.1

* cpe:/a:php:php:5.0.2

* cpe:/a:php:php:5.0.3

* cpe:/a:php:php:5.0.4

* cpe:/a:php:php:5.0.5

* cpe:/a:php:php:5.1.0

* cpe:/a:php:php:5.1.1

* cpe:/a:php:php:5.1.2

* cpe:/a:php:php:5.1.3

* cpe:/a:php:php:5.1.4

* cpe:/a:php:php:5.1.5

* cpe:/a:php:php:5.1.6

* cpe:/a:php:php:5.2.0

* cpe:/a:php:php:5.2.1

* cpe:/a:php:php:5.2.2

* Denotes Vulnerable Software

Technical Details

Vulnerability Type (View All)

CVE Standard Vulnerability Entry:http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-2727