Vulnerability CVE-2011-5009
Published: 2011-12-24   Modified: 2012-02-13

Description:
The CmpWebServer.dll module in the Control service in 3S CoDeSys 3.4 SP4 Patch 2 allows remote attackers to cause a denial of service (NULL pointer dereference) via (1) a crafted Content-Length in an HTTP POST or (2) an invalid HTTP request method.

Type:

CWE-Other

CVSS2 => (AV:N/AC:L/Au:N/C:N/I:N/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5/10
2.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Partial
Affected software
3ssoftware -> Codesys 

 References:
http://www.us-cert.gov/control_systems/pdf/ICS-ALERT-11-336-01A.pdf
http://www.osvdb.org/77389
http://www.osvdb.org/77388
http://secunia.com/advisories/47018
http://seclists.org/bugtraq/2011/Nov/178
http://aluigi.altervista.org/adv/codesys_1-adv.txt
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