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TITLE:
Siemens SIMATIC S7-400 Products ICMP Processing Denial of Service
Vulnerability

SECUNIA ADVISORY ID:
SA50115

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50115/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50115

RELEASE DATE:
2012-07-31

DISCUSS ADVISORY:
http://secunia.com/advisories/50115/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
 * Last Update
 * Popularity
 * Comments
 * Criticality Level
 * Impact
 * Where
 * Solution Status
 * Operating System / Software
 * CVE Reference(s)

http://secunia.com/advisories/50115/

ONLY AVAILABLE IN CUSTOMER AREA:
 * Authentication Level
 * Report Reliability
 * Secunia PoC
 * Secunia Analysis
 * Systems Affected
 * Approve Distribution
 * Remediation Status
 * Secunia CVSS Score
 * CVSS

https://ca.secunia.com/?page=viewadvisory&vuln_id=50115

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
A vulnerability has been reported in some Siemens SIMATIC S7-400
products, which can be exploited by malicious people to cause a DoS
(Denial of Service).

The vulnerability is caused due to an error when processing ICMP
packets and can be exploited to trigger the defect mode and stop the
device from processing further requests.

The vulnerability is reported in firmware versions 6.0.1 and 6.0.2 in
the following products:
* CPU 412-2 PN (6ES7412-2EK06-0AB0)
* CPU 414-3 PN/DP (6ES7414-3EM06-0AB0)
* CPU 414F-3 PN/DP (6ES7414-3FM06-0AB0)
* CPU 416-3 PN/DP (6ES7416-3ES06-0AB0)
* CPU 416F-3 PN (6ES7416-3FS06-0AB0)

SOLUTION:
Update to firmware version 6.0.3 (please see the vendor's advisory
for more information).

PROVIDED AND/OR DISCOVERED BY:
The vendor credits ICS-CERT.

ORIGINAL ADVISORY:
SSA-589272:
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-589272.pdf

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

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Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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