Successful exploitation of these vulnerabilities could allow a remote attacker to gain remote code execution on the device.
The following versions of GateManager, a VPN server, are affected:
An attacker can send a negative value and overwrite arbitrary data.
The affected product is vulnerable to an off-by-one error, which may allow an attacker to remotely execute arbitrary code or cause a denial-of-service condition.
The affected product contains a hard-coded credential for telnet, allowing an unprivileged attacker to execute commands as root.
The affected product uses a weak hash type, which may allow an attacker to view user passwords.
Sharon Brizinov and Tal Keren of Claroty reported these vulnerabilities to CISA.
Secomea has released a new version to mitigate the reported vulnerabilities. The most up-to-date release at the time of this CISA advisory can be found on the Secomea website.
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 these vulnerabilities.
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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