Multiple Zero-Days in PremiSys IDenticard Access Control System
Tenable Research discovered multiple zero-day vulnerabilities in the PremiSys access control system developed by IDenticard. As of January 9, IDenticard has not released a patch for these vulnerabilities.
Antecedentes
Tenable Research has discovered four vulnerabilities in the PremiSys access control system from IDenticard. The PremiSys system can be used to manage door controls and access cards, collect detailed facility data and integrate with video monitoring systems.
According to Tenable’s disclosure timeline, multiple attempts were made to contact the vendor to address these vulnerabilities. The Computer Emergency Response Team (CERT) was notified of these vulnerabilities. As of January 9, the vendor hasn’t responded. The 90-day disclosure period ended on January 3, 2019.
Análisis
The following vulnerabilities have been confirmed in versions 3.1.190 of PremiSys IDenticard. Tenable Research requested access to the latest version to verify the vulnerabilities but received no response.
CVE-2019-3906:Hardcoded Credentials (Admin Access to Service)
The service contains hardcoded credentials (CWE-798) that provide administrator access to the entire service via the PremiSys Windows Communication Foundation (WCF) Service endpoint.
Users are not permitted to change these credentials. The only mitigation appears to be to limit traffic to this endpoint, which may or may not have further impact on the availability of the application itself.
These credentials can be used by an attacker to dump contents of the badge system database, modify contents, or other various tasks with unfettered access.
CVE-2019-3907:Weak Hashing/Encryption
User credentials and other sensitive information are stored with a known-weak encryption method (Base64 encoded MD5 hashes - salt + password).
CVE-2019-3908:Hardcoded Password
Identicard backups are stored in an idbak format, which appears to simply be a password protected zip file. The password to unzip the contents is hardcoded into the application ("ID3nt1card").
CVE-2019-3909:Default Database Credentials (Full Access to Service Databases)
The IDenticard service installs with a default database username and password of "PremisysUsr" / "ID3nt1card." There are also instructions for meeting longer password standards by using "ID3nt1cardID3nt1card." Users cannot change this password without sending custom passwords to the vendor directly in order to receive an encrypted variant to use in their configurations. These known credentials can be used by attackers to access the sensitive contents of the databases.
Solución
Because there is no vendor patch, affected users will have to attempt to mitigate these vulnerabilities. Systems like this should never be open to the internet and users should ensure proper network segmentation is in place to isolate this critical system.
Additional information
Visit the Tenable Tech Blog on Medium to read researcher Jimi Sebree’s in-depth story about his work uncovering these vulnerabilities.
Learn more about Tenable, the first Cyber Exposure platform for holistic management of your modern attack surface. Get a free 60-day trial of Tenable.io Vulnerability Management.
Artículos relacionados
Operational Technology in the DoD: Ensuring a Secure and Efficient Power Grid
April 19, 2024In an evolving threat landscape, the DoD must make sure that its mission-critical operations don’t experience power outages.
Strengthening the Nessus Software Supply Chain with SLSA
April 16, 2024You know Tenable as a cybersecurity industry leader whose world-class exposure management products are trusted by our approximately 43,000 customers, including about 60% of the Fortune 500. But sometimes we like to give you a peek behind the curtain to share how we protect our own house against cyberattacks – and that’s what this blog is about. Today we’re sharing our experience adopting the supply-chain security framework SLSA, with the hopes that the lessons we learned will be helpful to you.
Cybersecurity Snapshot: CISA Says Midnight Blizzard Swiped U.S. Gov’t Emails During Microsoft Hack, Tells Fed Agencies To Take Immediate Action
April 12, 2024Check out CISA’s urgent call for federal agencies to protect themselves from Midnight Blizzard’s breach of Microsoft corporate emails. Plus, a new survey shows cybersecurity pros are guardedly optimistic about AI. Meanwhile, SANS pinpoints the four trends CISOs absolutely must focus on this year. And the NSA is sharing best practices for data security. And much more!
Operational Technology in the DoD: Ensuring a Secure and Efficient Power Grid
April 19, 2024In an evolving threat landscape, the DoD must make sure that its mission-critical operations don’t experience power outages.
Cybersecurity Snapshot: Cyber Agencies Offer Secure AI Tips, while Stanford Issues In-Depth AI Trends Analysis, Including of AI Security
April 19, 2024Check out recommendations for securing AI systems from the Five Eyes cybersecurity agencies. Plus, Stanford University offers a comprehensive review of AI trends. Meanwhile, a new open-source tool aims to simplify SBOM usage. And don’t miss the latest CIS Benchmarks updates. And much more!
Tenable and Thales Collaborate to Provide Cyber Defense Simulations to Better Secure Operational Technology Environments
April 18, 2024The heart of the Welsh Valleys is home to the Thales Ebbw Vale campus, a world-class facility jointly funded by the Welsh government as part of its regeneration program for the region. At the core of the facility is the Cyber Range, a simulation and virtualization platform for training, testing, exercising and R&D. Tenable has joined the lineup of solutions used to run real world simulations in this controlled environment.
- Vulnerability Management