CVE-2011-4530

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-01-08 · updated 2026-06-16
Weakness: CWE-20

Description

Siemens Automation License Manager (ALM) 4.0 through 5.1+SP1+Upd1 does not properly copy fields obtained from clients, which allows remote attackers to cause a denial of service (exception and daemon crash) via long fields, as demonstrated by fields to the (1) open_session->workstation->NAME or (2) grant->VERSION function.

Affected products

Siemens AG Automation License Manager 5: through 5.1

References

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://support.automation.siemens.com/WW/view/en/114358
http://www.us-cert.gov/control_systems/pdf/ICSA-11-361-01.pdf
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://support.automation.siemens.com/WW/view/en/114358
http://www.us-cert.gov/control_systems/pdf/ICSA-11-361-01.pdf

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