Zend Platform mod_cluster denial of service
| zend-modcluster-bo (28573) |  Medium Risk |
Description:
Zend Platform is vulnerable to a denial of service, caused by a buffer overflow in the mod_cluster module when handling sessions. By sending an overly long or a zero-length session identifier, a remote attacker could overflow a buffer and cause the module to crash or possibly execute arbitrary code on the system.
*CVSS:
| Base Score: | 7 |
| Access Vector: | Remote |
| Access Complexity: | Low |
| Authentication: | Not Required |
| Confidentiality Impact: | Partial |
| Integrity Impact: | Partial |
| Availability Impact: | Partial |
| Temporal Score: | 5.2 |
| Exploitability: | Unproven |
| Remediation Level: | Official-Fix |
| Report Confidence: | Confirmed |
Consequences:
Gain Access
Remedy:
Upgrade to the latest version of Zend (2.2.1a or later), available from the Zend Web site. See References.
References:
- Hardened-PHP Project Security Advisory 2006/08/24: Zend Platform Multiple Remote Vulnerabilities.
- Zend Web site: Zend Platform.
- BID-19692: Zend Platform Multiple Remote Vulnerabilities
- CVE-2006-4431: Multiple buffer overflows in the (a) Session Clustering Daemon and the (b) mod_cluster module in the Zend Platform 2.2.1 and earlier allow remote attackers to cause a denial of service (crash) or execute arbitrary code via a (1) empty or (2) crafted PHP session identifier (PHPSESSID).
- OSVDB ID: 28230: Zend Platform Session Clustering Daemon PHP Session Identifier Overflow
- OSVDB ID: 28231: Zend Platform mod_cluster Module PHP Session Identifier Overflow
- SA21573: Zend Platform Multiple Vulnerabilities
- VUPEN/ADV-2006-3388: Zend Platform Multiple Remote Command Execution and Denial of Service Vulnerabilities
Platforms Affected:
- Zend Technologies Zend Platforms 2.2.1 and prior
Reported:
Aug 24, 2006
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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.