Vulnerability Details : CVE-2009-4418
The unserialize function in PHP 5.3.0 and earlier allows context-dependent attackers to cause a denial of service (resource consumption) via a deeply nested serialized variable, as demonstrated by a string beginning with a:1: followed by many {a:1: sequences.
Vulnerability category: Denial of service
Products affected by CVE-2009-4418
- cpe:2.3:a:php:php:*:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:beta1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:beta4:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:rc1:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:beta2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:beta3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:rc2:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.0.0:rc3:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.1.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.1.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.1.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.1.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.1.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.1.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.1.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.10:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.8:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.3:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.4:*:windows:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.9:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.4:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.6:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.7:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.11:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.1:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.5:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5.2.2:*:*:*:*:*:*:*
- cpe:2.3:a:php:php:5:*:*:*:*:*:*:*
Threat overview for CVE-2009-4418
Top countries where our scanners detected CVE-2009-4418
Top open port discovered on systems with this issue
80
IPs affected by CVE-2009-4418 28,167
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2009-4418!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
from SecurityScorecard.
Exploit prediction scoring system (EPSS) score for CVE-2009-4418
0.13%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 49 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2009-4418
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST |
CWE ids for CVE-2009-4418
-
Assigned by: nvd@nist.gov (Primary)
Vendor statements for CVE-2009-4418
-
Red Hat 2010-01-04Red Hat does not consider this to be a security flaw. For further details, see https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2009-4418
References for CVE-2009-4418
-
http://www.suspekt.org/2009/11/28/shocking-news-in-php-exploitation/
-
http://www.suspekt.org/downloads/POC2009-ShockingNewsInPHPExploitation.pdf
Be Suspicious. Online Security Blog - Suspekt.org
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