Description
Multiple buffer overflows in Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 allow remote attackers to execute arbitrary code via a long serialid field in an _licensekey command, as demonstrated by the (1) check_licensekey or (2) read_licensekey command.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- siemens automation license manager 500.0.122.1 - Multiple Vulnerabilities EDB-18165 · dos · Nov 28, 2011 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Advisories 1
- ICSA-11-361-01 Siemens Automation License Manager Vulnerabilities CISA ICS & IT advisories · Jun 9, 2025
References
- http://support.automation.siemens.com/WW/view/en/114358
- http://aluigi.altervista.org/adv/almsrvx_1-adv.txt
- http://support.automation.siemens.com/WW/llisapi.dll/57252401?func=ll&objId=57252401&objAction=csView&nodeid0=17323948&lang=en&siteid=cseus&aktprim=0&extranet=standard&viewreg=WW&load=content
- http://www.us-cert.gov/control_systems/pdf/ICSA-11-361-01.pdf