Vulnerability CVE-2012-3017
Published: 2012-07-31

Description:
Siemens SIMATIC S7-400 PN CPU devices with firmware 5.x allow remote attackers to cause a denial of service (defect-mode transition and service outage) via (1) malformed HTTP traffic or (2) malformed IP packets.

Type:

CWE-119

 (Improper Restriction of Operations within the Bounds of a Memory Buffer)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
7.8/10
6.9/10
10/10
Exploit range
Attack complexity
Authentication
Remote
Low
No required
Confidentiality impact
Integrity impact
Availability impact
None
None
Complete
Affected software
Siemens -> Simatic s7-400 cpu 414-3 pn/dp 
Siemens -> Simatic s7-400 cpu 416-3 pn/dp 
Siemens -> Simatic s7-400 cpu 416f-3 pn/dp 
Siemens -> Simatic s7-400 cpu firmware 

 References:
http://www.us-cert.gov/control_systems/pdf/ICSA-12-212-02.pdf
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-617264.pdf
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