VAR-201105-0788
Vulnerability from variot - Updated: 2025-10-15 23:41A vulnerability has been identified in SIMATIC S7-1200 CPU V1 family (incl. SIPLUS variants) (All versions < V2.0.2), SIMATIC S7-1200 CPU V2 family (incl. SIPLUS variants) (All versions < V2.0.2). Affected controllers are vulnerable to capture-replay in the communication with the engineering software. This could allow an on-path attacker between the engineering software and the controller to execute any previously recorded commands at a later time (e.g. set the controller to STOP), regardless whether or not the controller had a password configured. SIMATIC is the collective name for the Siemens Automation product line, from SIEMENS + Automatic. It was born in 1958 and has a history of 50 years, covering PLC, industrial software and HMI. It is the global leading brand of automation. Siemens SIMATIC S7-1200 PLC Systems has security bypass and denial of service vulnerabilities in implementation that can be exploited by attackers to send arbitrary commands through replay attacks to perform unauthorized operations on affected controllers. An attacker could exploit the denial of service vulnerability by placing the affected controller system in the stop/defect state. Siemens SIMATIC S7-1200 Programmable Logic Controller (PLC) is prone to a security-bypass vulnerability and a denial-of-service vulnerability. ----------------------------------------------------------------------
Join Secunia @ FIRST Conference, 12-17 June, Hilton Vienna, Austria See to the presentation "The Dynamics and Threats of End-Point Software Portfolios" by Secunia's Research Analyst Director, Stefan Frei. Read more: http://conference.first.org/
TITLE: Siemens SIMATIC S7-1200 Controller Communication Replay and Denial of Service
SECUNIA ADVISORY ID: SA44961
VERIFY ADVISORY: Secunia.com http://secunia.com/advisories/44961/ Customer Area (Credentials Required) https://ca.secunia.com/?page=viewadvisory&vuln_id=44961
RELEASE DATE: 2011-06-16
DISCUSS ADVISORY: http://secunia.com/advisories/44961/#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/44961/
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=44961
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: Two vulnerabilities have been reported in Siemens SIMATIC S7-1200, which can be exploited by malicious people to disclose sensitive information and cause a DoS (Denial of Service). Man-in-the-Middle (MitM) attacks.
2) An unspecified error within the web server can be exploited to cause a DoS. No further information is currently available.
The vulnerabilities are reported in firmware version 02.00.02.
SOLUTION: The vendor recommends to disable the web server. Reportedly, the vulnerabilities will be fixed in an upcoming version.
PROVIDED AND/OR DISCOVERED BY: Dillon Beresford, NSS Labs.
ORIGINAL ADVISORY: Siemens: http://support.automation.siemens.com/dnl/TY/TYzNTUxOQAA_50428932_Akt/Siemens_Security_Advisory_SSA-625789.pdf http://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo&lang=en&objid=50428932&caller=view
Dillon Beresford: http://news.infracritical.com/pipermail/scadasec/2011-May/019934.html
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/
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.
Subscribe: http://secunia.com/advisories/secunia_security_advisories/
Definitions: (Criticality, Where etc.) http://secunia.com/advisories/about_secunia_advisories/
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.
Unsubscribe: Secunia Security Advisories http://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org
Show details on source website
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Siemens SIMATIC S7-1200 PLC Systems has security bypass and denial of service vulnerabilities in implementation that can be exploited by attackers to send arbitrary commands through replay attacks to perform unauthorized operations on affected controllers. An attacker could exploit the denial of service vulnerability by placing the affected controller system in the stop/defect state. Siemens SIMATIC S7-1200 Programmable Logic Controller (PLC) is prone to a security-bypass vulnerability and a denial-of-service vulnerability. ----------------------------------------------------------------------\n\n\nJoin Secunia @ FIRST Conference, 12-17 June, Hilton Vienna, Austria\nSee to the presentation \"The Dynamics and Threats of End-Point Software Portfolios\" by Secunia\u0027s Research Analyst Director, Stefan Frei. \nRead more:\nhttp://conference.first.org/ \n\n\n----------------------------------------------------------------------\n\nTITLE:\nSiemens SIMATIC S7-1200 Controller Communication Replay and Denial of\nService\n\nSECUNIA ADVISORY ID:\nSA44961\n\nVERIFY ADVISORY:\nSecunia.com\nhttp://secunia.com/advisories/44961/\nCustomer Area (Credentials Required)\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=44961\n\nRELEASE DATE:\n2011-06-16\n\nDISCUSS ADVISORY:\nhttp://secunia.com/advisories/44961/#comments\n\nAVAILABLE ON SITE AND IN CUSTOMER AREA:\n * Last Update\n * Popularity\n * Comments\n * Criticality Level\n * Impact\n * Where\n * Solution Status\n * Operating System / Software\n * CVE Reference(s)\n\nhttp://secunia.com/advisories/44961/\n\nONLY AVAILABLE IN CUSTOMER AREA:\n * Authentication Level\n * Report Reliability\n * Secunia PoC\n * Secunia Analysis\n * Systems Affected\n * Approve Distribution\n * Remediation Status\n * Secunia CVSS Score\n * CVSS\n\nhttps://ca.secunia.com/?page=viewadvisory\u0026vuln_id=44961\n\nONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:\n * AUTOMATED SCANNING\n\nhttp://secunia.com/vulnerability_scanning/personal/\nhttp://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/\n\nDESCRIPTION:\nTwo vulnerabilities have been reported in Siemens SIMATIC S7-1200,\nwhich can be exploited by malicious people to disclose sensitive\ninformation and cause a DoS (Denial of Service). \nMan-in-the-Middle (MitM) attacks. \n\n2) An unspecified error within the web server can be exploited to\ncause a DoS. No further information is currently available. \n\nThe vulnerabilities are reported in firmware version 02.00.02. \n\nSOLUTION:\nThe vendor recommends to disable the web server. Reportedly, the\nvulnerabilities will be fixed in an upcoming version. \n\nPROVIDED AND/OR DISCOVERED BY:\nDillon Beresford, NSS Labs. \n\nORIGINAL ADVISORY:\nSiemens:\nhttp://support.automation.siemens.com/dnl/TY/TYzNTUxOQAA_50428932_Akt/Siemens_Security_Advisory_SSA-625789.pdf\nhttp://support.automation.siemens.com/WW/llisapi.dll?func=cslib.csinfo\u0026lang=en\u0026objid=50428932\u0026caller=view\n\nDillon Beresford:\nhttp://news.infracritical.com/pipermail/scadasec/2011-May/019934.html\n\nOTHER REFERENCES:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nDEEP LINKS:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED DESCRIPTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXTENDED SOLUTION:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\nEXPLOIT:\nFurther details available in Customer Area:\nhttp://secunia.com/vulnerability_intelligence/\n\n----------------------------------------------------------------------\n\nAbout:\nThis Advisory was delivered by Secunia as a free service to help\nprivate users keeping their systems up to date against the latest\nvulnerabilities. \n\nSubscribe:\nhttp://secunia.com/advisories/secunia_security_advisories/\n\nDefinitions: (Criticality, Where etc.)\nhttp://secunia.com/advisories/about_secunia_advisories/\n\n\nPlease Note:\nSecunia recommends that you verify all advisories you receive by\nclicking the link. \nSecunia NEVER sends attached files with advisories. \nSecunia does not advise people to install third party patches, only\nuse those supplied by the vendor. \n\n----------------------------------------------------------------------\n\nUnsubscribe: Secunia Security Advisories\nhttp://secunia.com/sec_adv_unsubscribe/?email=packet%40packetstormsecurity.org\n\n----------------------------------------------------------------------\n\n\n",
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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