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AUSCERT External Security Bulletin Redistribution
ESB-2010.0569
PHP SplObjectStorage class unserialize() code execution
25 June 2010
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AusCERT Security Bulletin Summary
---------------------------------
Product: PHP 5.2.x and 5.3.x through 5.3.2
Publisher: ISS
Operating System: Windows
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Privileged Data -- Remote/Unauthenticated
Resolution: None
CVE Names: CVE-2010-2225
Original Bulletin:
http://xforce.iss.net/xforce/xfdb/59610
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PHP SplObjectStorage class unserialize() code execution
php-splobjectstorage-code-execution (59610)
The risk level is classified as High Risk
Description:
PHP could allow a remote attacker to execute arbitrary code on the system,
caused by an error in the SplObjectStorage class unserialize() function. An
attacker could exploit this vulnerability to execute arbitrary code.
*CVSS:
Base Score: 7.5
Access Vector: Network
Access Complexity: Low
Authentication: None
Confidentiality Impact: Partial
Integrity Impact: Partial
Availability Impact: Partial
Temporal Score: 6.1
Exploitability: Unproven
Remediation Level: Unavailable
Report Confidence: Uncorroborated
Consequences:
Gain Access
Remedy:
No remedy available as of June 24, 2010.
References:
* PHP Web site: PHP: Hypertext Preprocessor.
* Red Hat Bugzilla Bug 605641 : CVE-2010-2225 PHP unsafe unserialize()
use flaw.
* BID-40948: PHP 'SplObjectStorage' Unserializer Arbitrary Code Execution
Vulnerability
* CVE-2010-2225: Use-after-free vulnerability in the SplObjectStorage
unserializer in PHP 5.2.x and 5.3.x through 5.3.2 allows remote attackers
to execute arbitrary code or obtain sensitive information via serialized
data, related to the PHP unserialize function.
Platforms Affected:
* PHP PHP 5.2.0
* PHP PHP 5.2.1
* PHP PHP 5.2.10
* PHP PHP 5.2.11
* PHP PHP 5.2.12
* PHP PHP 5.2.13
* PHP PHP 5.2.2
* PHP PHP 5.2.3
* PHP PHP 5.2.4
* PHP PHP 5.2.5
* PHP PHP 5.2.6
* PHP PHP 5.2.7
* PHP PHP 5.2.8
* PHP PHP 5.2.9
* PHP PHP 5.3.0
* PHP PHP 5.3.1
* PHP PHP 5.3.2
Reported:
Jun 18, 2010
The information within this database may change without notice. Use of this
information constitutes acceptance for use in an AS IS condition. There are NO
warranties, implied or otherwise, with regard to this information or its use.
Any use of this information is at the user's risk. In no event shall the
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any damages whatsoever arising out of or in connection with the use or spread
of this information.
For corrections or additions please email xforce@iss.net
* According to the Forum of Incident Response and Security Teams (FIRST), the
Common Vulnerability Scoring System (CVSS) is an "industry open standard
designed to convey vulnerability severity and help to determine urgency and
priority of response." IBM PROVIDES THE CVSS SCORES "AS IS" WITHOUT WARRANTY OF
ANY KIND, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. CUSTOMERS ARE RESPONSIBLE FOR ASSESSING THE IMPACT OF ANY
ACTUAL OR POTENTIAL SECURITY VULNERABILITY.
The information within this database may change without notice. Use of this
information constitutes acceptance for use in an AS IS condition. There are NO
warranties, implied or otherwise, with regard to this information or its use.
Any use of this information is at the user's risk. In no event shall IBM be
held liable for any damages whatsoever arising out of or in connection with the
use or spread of this information.
About IBM Internet Security Systems
IBM Internet Security Systems is a trusted security advisor to thousands of the
world's leading businesses and governments, helping to provide pre-emptive
protection for networks, desktops and servers. The IBM Proventia? integrated
security platform is designed to automatically protect against both known and
unknown threats, helping to keep networks up and running and shield customers
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Security Systems Web site at www.iss.net or call 800-776-2362.
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