Successful exploitation of this vulnerability could allow an attacker to obtain valid administrator login names and use this information to launch further attacks.
The following versions of Siveillance Video Client, an IP video management software, are affected:
In environments where Windows NTLM authentication is enabled, the affected client application transmits usernames to the server in cleartext. This could allow an attack in a privileged network position to obtain valid administrator login names and use this information to launch further attacks.
Siemens ProductCERT reported this vulnerability to CISA.
Siemens has identified the following specific workarounds and mitigations users can apply to reduce the risk:
As a general security measure Siemens strongly recommends protecting network access to affected products with appropriate mechanisms. It is advised to follow recommended security practices to run the devices in a protected IT environment.
For additional information, please refer to Siemens Security Advisory: SSA-770698
CISA recommends users take defensive measures to minimize the risk of exploitation of this vulnerability. Specifically, users should:
CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
CISA also provides a section for control systems security recommended practices on the ICS webpage on us-cert.gov. Several recommended practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Additional mitigation guidance and recommended practices are publicly available on the ICS webpage on us-cert.gov in the Technical Information Paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Organizations observing any suspected malicious activity should follow their established internal procedures and report their findings to CISA for tracking and correlation against other incidents.
No known public exploits specifically target this vulnerability.
For any questions related to this report, please contact the CISA at:
Toll Free: 1-888-282-0870
For industrial control systems cybersecurity information: https://us-cert.cisa.gov/ics
or incident reporting: https://us-cert.cisa.gov/report
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