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TITLE:
Siemens SIMATIC S7-1200 Two Denial of Service Vulnerabilities

SECUNIA ADVISORY ID:
SA51628

VERIFY ADVISORY:
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http://secunia.com/advisories/51628/
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https://ca.secunia.com/?page=viewadvisory&vuln_id=51628

RELEASE DATE:
2012-12-21

DISCUSS ADVISORY:
http://secunia.com/advisories/51628/#comments

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http://secunia.com/advisories/51628/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=51628

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http://secunia.com/vulnerability_scanning/personal/
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DESCRIPTION:
Two vulnerabilities have been reported in SIMATIC S7-1200, which can
be exploited by malicious people to cause a DoS (Denial of Service).

1) An error when handling SNMP status information can be exploited to
cause the device to enter defect mode via specially crafted packets
sent to UDP port 161.

2) An error when handling TCP packets (ISO-TSAP) for device
management can be exploited to cause the device to enter defect mode
via specially crafted packets sent to TCP port 102.

The vulnerabilities are reported in all 2.x and 3.x versions.

SOLUTION:
The vendor is currently working on a fix. No official solution is
currently available.

PROVIDED AND/OR DISCOVERED BY:
The vendor credits:
1) Prof. Dr. Hartmut Pohl, softScheck GmbH
2) Arne Vidstrom, Swedish Defence Research Agency (FOI)

ORIGINAL ADVISORY:
SSA-724606:
http://www.siemens.com/corporate-technology/pool/de/forschungsfelder/siemens_security_advisory_ssa-724606.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:
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EXTENDED SOLUTION:
Further details available in Customer Area:
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EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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