Qualys Blog

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Samba Vulnerability CVE-2017-7494

On Wednesday, the Samba Team patched a vulnerability that exists in all versions of Samba including and after version 3.5.0. Exploitation of this vulnerability could result in remote code execution on the affected host.

Samba is used to provide SMB and CIFS services for Linux systems, and is pervasive in both enterprise and consumer products. While the Samba Team is providing patches for the latest versions (4.4.x and higher), some Linux vendors, such as RedHat and Ubuntu, are providing patches for older versions of Samba if they are used in a supported version of the OS. The Samba Team may also release patches for older versions of Samba.

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Digging Into WannaCry Details: Answers to Your Burning Questions

Jimmy Graham, Director of Product Management, Qualys ThreatPROTECT & AssetView
Mark Butler, CISO, Qualys

The WannaCry ransomware attack spread so quickly and has been so disruptive that IT departments can’t get enough information about what caused it, how it can be remediated and what can be done to protect their organizations from similar threats. This thirst for insights, explanations and best practices was evident during the Q&A portion of our recent webcast  How to Rapidly Identify Assets at Risk to WannaCry Ransomware.”

Below is a transcript of 20 questions asked by participants, and the answers provided by our experts, Qualys CISO Mark Butler and Qualys Product Management Director Jimmy Graham. Continue reading …

No More Tears: WannaCry Highlights Importance of Prompt Vulnerability Detection, Remediation

It didn’t have to happen.

That’s the simple yet profound lesson from WannaCry’s ransomware rampage that has infected 300,000-plus systems in more than 150 countries, disrupting critical operations across industries, including healthcare, government, transportation and finance.

If vulnerable systems had been patched and maintained as part of a proactive and comprehensive system configuration and vulnerability management program, the attack would have been a dud, barely registering on anyone’s InfoSec radar.

“WannaCry was totally preventable with the proper patching and the proper build configurations,” Mark Butler, Qualys’ Chief Information Security Officer (CISO), said during a webcast this week. “That’s a reminder to all of us that you didn’t have to be a victim.”

There are various workarounds for mitigating the underlying WannaCry vulnerability, but those are stopgap measures. “The primary way to remediate this vulnerability is through disciplined and timely patching,” Qualys Product Management Director Jimmy Graham said during the webcast, titled “How to Rapidly Identify Assets at Risk to WannaCry Ransomware.”

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Visualizing WannaCry & Shadow Brokers with Dashboards

To assess infections from WannaCry ransomware and threat exposure from the Shadow Brokers vulnerabilities across an entire IT environment, it’s helpful to visualize your exposure via dynamic dashboards.

Using Qualys AssetView and ThreatPROTECT, I created a single-pane incident response dashboard containing six key data points that provide a complete picture to assess both infection of WannaCry and threat exposure from the Shadow Brokers vulnerabilities. With the data from this dashboard, you can take immediate action against WannaCry. Each dashboard element automatically collects trend data that allows customers to track their remediation efforts over time.

See Visualizing WannaCry and Shadow Brokers: How to Configure Dashboards in AssetView for the details of the dashboard, including how to create dashboards in Qualys AssetView and specifically how I built the dashboard for WannaCry and Shadow Brokers.

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Better Trusted Scanning with Qualys-CyberArk Integration

To manage privileged credentials, especially across multiple systems in complex environments, many organizations use privileged account security solutions. Qualys has integrated with such solutions for a long time, and has recently upgraded its CyberArk integration to include CyberArk Application Identity Manager. This provides organizations a simplified way to manage access to privileged credentials (passwords and SSH keys) while performing vulnerability and compliance trusted scanning, without the need to store credentials in the Qualys platform.

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For GDPR Readiness, You Need Visibility into Your IT Assets

The looming deadline for complying with the EU’s General Data Protection Regulation (GDPR) is shining the spotlight on a foundational InfoSec best practice: A comprehensive IT asset inventory.

The reason: GDPR places strict requirements on the way a business handles the personally identifiable information (PII) of EU residents. For example, companies must know what PII they hold on these individuals, where it’s kept, with whom they’re sharing it, how they’re protecting it, and for what purposes it’s being used.

An organization can’t expect to comply with GDPR if it lacks full visibility into the IT assets — hardware and software — that it’s using to process, transmit, analyze and store this data.

“If you don’t know what IT assets you’ve got, how can you effectively find the data on your network that you need to meet GDPR requirements?” said Darron Gibbard, Qualys’ Chief Technical Security Officer for the EMEA region, during a recent webcast.

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Qualys Cloud Suite 8.10 New Features

This new release of the Qualys Cloud Suite, version 8.10, includes new capabilities and improvements to for VM, PC and shared platform improvements:

  • Authentication Vault integration with BeyondTrust
  • Mandate-Based reporting for Policy Compliance to simplify reporting against multiple mandates and audit frameworks.
  • Expanded support & features for scanning Cloud Environments such as Amazon EC2, Azure, and Google GCE.
  • VM Scanning, Reporting, and SSL Labs Improvements
  • Ability to export/import UDC definitions with Policy XML and Qualys Library Content
  • Policy Compliance support for PostGRE SQL and UDC Support for Amazon Linux 2016

See Also:

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How to Rapidly Identify Assets at Risk to WannaCry Ransomware and ETERNALBLUE Exploit

In what may be the first public weaponizing of April’s Shadow Brokers dump of NSA exploits, a ransomware attack has crippled IT systems globally and disrupted operations at major organizations, including patient services at UK hospitals.

About 80,000 infections have been detected in about 100 countries at the time of this writing, and the attack, which uses the WannaCry (WanaCrypt0r 2.0) ransomware, continues to spread.

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Qualys Policy Compliance Notification: Policy Library Update

Qualys’ library of built-in policies makes it easy to comply with commonly adhered to security standards and regulations. Qualys provides a wide range of policies, including many that have been certified by CIS as well as ones based on security guidelines from vendors such as Microsoft and VMware.

In order to keep up with the latest changes in security control requirements and new technologies, Qualys publishes new content to the Policy Library monthly.

This release includes new policies and updates covering:

  • Initial coverage for DISA STIG on Windows
  • SCM for Windows Server 2016
  • New CIS versions for CentOS, Windows Server 2008 R2/2012 R2
  • Several updates to minor versions for Vendor Recommended and CIS policies.

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Intel AMT Vulnerability

Last week, Intel published a security advisory (INTEL-SA-00075) regarding a new vulnerability in Intel Active Management Technology (AMT), Intel Standard Manageability (ISM), and Intel Small Business Technology (SBT). The firmware versions impacted are 6.x, 7.x, 8.x 9.x, 10.x, 11.0, 11.5, and 11.6. In addition to the vulnerability disclosure, details of how to exploit it remotely has been released publicly.

Exploitation of this vulnerability could allow an attacker to gain complete control of an affected system. Updated firmwares will be released by the system OEM, but Intel has provided mitigation steps to prevent remote exploitation of the vulnerability. The Qualys Cloud Platform can help you detect any vulnerable systems, allowing you to quickly target them for mitigation.

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