簡報產品中發現多個安全性弱點
Tenable Research has discovered multiple vulnerabilities impacting Crestron’s AM-100 presentation device platform. Two of these also impact several other platforms, including: Barco wePresent, ExtronShareLink, InFocus LiteShow and TEQ AV IT WIPS710.
背景說明
While researching a Crestron AM-100 AirMedia Presentation Gateway, Jacob Baines discovered that this device shares a code base with several other presentation platforms. He also discovered 15 vulnerabilities in Crestron AM-100 version 1.6.0.2 and AM-101 version 2.7.0.2. Two of these vulnerabilities (CVE-2019-3929, CVE-2019-3930) are also present in:
- Barco wePresent WiPG-1000 firmware 2.3.0.10
- Barco wePresent WiPG-1600 before firmware 2.4.1.19
- Extron ShareLink 200/250 firmware 2.0.3.4
- Teq AV ITWIPS710 firmware 1.1.0.7
- InFocus LiteShow3 firmware 1.0.16
- SHARP PN-L703WA firmware version 1.4.2.3
- Optoma WPS-Pro firmware version 1.0.0.5
- Blackbox HD WPS firmware version 1.0.0.5
- InFocus LiteShow4 2.0.0.7
The devices on this list are also vulnerable to CVE-2017-16709, which Crestron patched in 2018.
分析
While researching these vulnerabilities, Baines discovered nearly 1,600 devices with this shared code base are open to the internet. He also found that many of the devices are not up to date. You can read all of his findings in the Tenable Tech Blog. Full details of the vulnerabilities in Crestron AM-100 and AM-101 can be found in the Tenable Research Advisory.
CVE-2019-3929：Unauthenticated Remote Command Injection via HTTP
This is the most critical of the vulnerabilities and is present in all of the listed devices. A remote, unauthenticated attacker can execute operating system commands as root via crafted requests to the HTTP endpoint file_transfer.cgi. This would allow them to view anything being presented on the presentation device and, more importantly, use the presentation device as a pivot point to the internal network. They could also replace the client software presenters must download to connect to the device with their own malicious software, giving them access to the presenter’s device.
Vendor response
Tenable Research attempted to coordinate with all of the impacted vendors. Barco released firmware version v2.3.1.16 and Extron has released firmware version 2.3.08 to address the vulnerabilities that impact their platforms. Update May 1: Crestron released a Security Advisory for these vulnerabilities with more information about mitigations and when fixes will be available If you deploy devices from the other vendors listed, we recommend reaching out to them directly for more information.
解決方法
Ensure your devices are updated fully and are not exposed to the internet.
Tenable has developed an exploit plugin to test for CVE-2019-3929.
Additional information
Visit the Tenable Tech Blog on Medium to read researcher Jacob Baines’ 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.
相關文章
Cybersecurity Snapshot: Find MITRE ATT&CK Complex? Need Help Mapping to It? There’s an App for That!
March 10, 2023Learn about a new tool that streamlines MITRE ATT&CK mapping. Plus, known vulnerabilities remain a major cyber risk – just ask LastPass. Also, discover why SaaS data protection remains difficult. Plus, a look at the U.S. National Cybersecurity Strategy. And much more!
The Ransomware Ecosystem: In Pursuit of Fame and Fortune
July 28, 2022The key players within the ransomware ecosystem, including affiliates and initial access brokers, work together cohesively like a band of musicians, playing their respective parts as they strive for fame and fortune.
Brazen, Unsophisticated and Illogical: Understanding the LAPSUS$ Extortion Group
July 20, 2022Having gained the industry’s attention in the first months of 2022, the LAPSUS$ extortion group has largely gone quiet. What can we learn from this extortion group’s story and tactics?
Tenable Cyber Watch: A Look at the U.S. National Cybersecurity Strategy, A Powerful AI Tech Gears Up for Prime Time, and more
March 20, 2023This week’s edition of the Tenable Cyber Watch unpacks the White House’s National Cybersecurity Strategy and explores how artificial intelligence will help cyber teams with complex attacks. Also covered: Why software vendors should prepare to submit letters of attestation to the GSA.
OpenAI’s ChatGPT and GPT-4 Used as Lure in Phishing Email, Twitter Scams to Promote Fake OpenAI Tokens
March 17, 2023Hoping to cash in on the massive interest around OpenAI’s GPT-4 – ChatGPT’s new multimodal model – scammers have launched phishing campaigns via email and Twitter designed to steal cryptocurrency. Check out how they’re carrying out the scams and how you can avoid becoming a victim.
Cybersecurity Snapshot: CISA Pinpoints Vulnerabilities in Critical Infrastructure Orgs that Ransomware Groups Could Exploit
March 17, 2023Learn about CISA’s new program to help critical infrastructure organizations stamp out vulnerabilities associated with ransomware attacks. Plus, a U.S. government advisory with the latest on LockBit 3.0. Also, find out why the U.K.’s cyber agency is warning users about ChatGPT. And much more!
- 威脅情報
- 威脅管理
- 弱點管理
- 弱點掃描
