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Vulnerability Details : CVE-2007-1521

Double free vulnerability in PHP before 4.4.7, and 5.x before 5.2.2, allows context-dependent attackers to execute arbitrary code by interrupting the session_regenerate_id function, as demonstrated by calling a userspace error handler or triggering a memory limit violation.
Publish Date : 2007-03-20 Last Update Date : 2008-09-05
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- CVSS Scores & Vulnerability Types

CVSS Score
6.8
Confidentiality Impact Partial (There is considerable informational disclosure.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact Partial (There is reduced performance or interruptions in resource availability.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access User
Vulnerability Type(s) Execute Code
CWE ID CWE id is not defined for this vulnerability

- Vendor Statements

The PHP interpreter does not offer a reliable "sandboxed" security layer (as found in, say, a JVM) in which untrusted scripts can be run; any script run by the PHP interpreter must be trusted with the privileges of the interpreter itself. We therefore do not classify this issue as security-sensitive since no trust boundary is crossed.
Source: Redhat

- Related OVAL Definitions

Title Definition Id Class Family
CVE-2007-1521 oval:org.opensuse.security:def:20071521 unix
DSA-1282-1 php4 oval:org.mitre.oval:def:18873 unix
DSA-1283-1 php5 oval:org.mitre.oval:def:19944 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2007-1521

# Product Type Vendor Product Version Update Edition Language
1 Application PHP PHP 5.2.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
PHP PHP 1

- References For CVE-2007-1521

http://secunia.com/advisories/25445
SECUNIA 25445
http://security.gentoo.org/glsa/glsa-200705-19.xml
GENTOO GLSA-200705-19
http://secunia.com/advisories/26235
SECUNIA 26235
http://www.frsirt.com/english/advisories/2007/2732
VUPEN ADV-2007-2732
http://www.novell.com/linux/security/advisories/2007_32_php.html
SUSE SUSE-SA:2007:032
http://www.securityfocus.com/bid/25159
BID 25159 Apple Mac OS X 2007-007 Multiple Security Vulnerabilities Release Date:2007-08-08
http://secunia.com/advisories/25025
SECUNIA 25025
http://secunia.com/advisories/24505
SECUNIA 24505
http://secunia.com/advisories/25057
SECUNIA 25057
http://secunia.com/advisories/25062
SECUNIA 25062
http://us2.php.net/releases/4_4_7.php CONFIRM
http://us2.php.net/releases/5_2_2.php CONFIRM
http://www.debian.org/security/2007/dsa-1282
DEBIAN DSA-1282
http://www.debian.org/security/2007/dsa-1283
DEBIAN DSA-1283
http://www.frsirt.com/english/advisories/2007/0960
VUPEN ADV-2007-0960
http://www.php-security.org/MOPB/MOPB-22-2007.html
http://www.ubuntu.com/usn/usn-455-1
UBUNTU USN-455-1
http://www.securityfocus.com/bid/22968
BID 22968 PHP Session_Regenerate_ID Function Double Free Memory Corruption Vulnerability Release Date:2007-08-01
http://secunia.com/advisories/25056
SECUNIA 25056
http://lists.apple.com/archives/security-announce//2007/Jul/msg00004.html
APPLE APPLE-SA-2007-07-31
http://docs.info.apple.com/article.html?artnum=306172 CONFIRM

- Metasploit Modules Related To CVE-2007-1521

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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