External risk intelligence

Palo Alto Networks PAN-OS Remote Code Execution Vulnerability.

CVE advisoryKnown Exploit

CVE-2019-1579

A remote code execution vulnerability in PAN-OS with GlobalProtect enabled allows unauthenticated attackers to run arbitrary code, posing a business risk of system compromise and data breaches.

5Halo Surface Signal

Remote Code Execution

Paloaltonetworks Pan Os

before 7.1.198.0.0 to before 8.0.128.1.0 to before 8.1.3

External exposure likelihood

Halo Surface Signal score for CVE-2019-1579

The vulnerability affects GlobalProtect Portal and Gateway interfaces, which are designed to be public-facing network edge services for remote access and are typically exposed directly to the internet to facilitate user connectivity.

Horizon Alert

Summary of the vulnerability and why it matters

Organizations utilizing PAN-OS with the GlobalProtect Portal or Gateway interface enabled are impacted by a remote code execution vulnerability. This flaw may allow an unauthenticated remote attacker to execute arbitrary code. Such an occurrence can lead to compromised systems, unauthorized data access, and disruption of business operations.

  • PAN-OS GlobalProtect Portal/Gateway
  • Flaw allows arbitrary code execution
  • Business risk and system compromise

Attack Path

How an attacker could exploit the issue

An unauthenticated remote attacker could exploit a vulnerability to execute arbitrary code. This could lead to the compromise of systems and the potential theft or alteration of sensitive data. The impact on affected organizations includes significant business risk due to potential disruption and loss of confidentiality.

  • Exposed GlobalProtect interface.
  • Unauthenticated remote attacker.
  • Trigger arbitrary code execution.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an unauthenticated remote attacker to execute arbitrary code. The potential for remote code execution indicates a significant business risk, especially given its inclusion on a catalog of known exploited vulnerabilities. Organizations should treat this as a high-priority issue.

  • Attacker skill level: Moderate to high.
  • Required access or conditions: Network access, GlobalProtect enabled.
  • Business risk or urgency: High, known exploited.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

Remote code execution vulnerabilities in specific versions of PAN-OS, particularly those with the GlobalProtect Portal or Gateway interface enabled, pose a significant risk. Attackers can exploit this to execute arbitrary code, potentially leading to system compromise and data breaches. Organizations must act swiftly to address these vulnerabilities.

  • Identify exposed GlobalProtect assets.
  • Restrict network access to GlobalProtect.
  • Apply vendor patches and validate.
  • Monitor for related activity.

Frequently asked questions

What is PAN-OS and what is it used for?

PAN-OS is the operating system for Palo Alto Networks firewalls. It is used to secure networks by controlling traffic, detecting threats, and providing visibility into network activity.

What kind of weakness does CVE-2019-1579 describe?

CVE-2019-1579 describes a weakness classified as CWE-134, which relates to "Uncontrolled Format String." This type of vulnerability can allow an attacker to execute arbitrary code.

What conditions are needed for an attacker to exploit CVE-2019-1579?

An unauthenticated remote attacker can exploit this vulnerability. The GlobalProtect Portal or GlobalProtect Gateway interface must be enabled on the affected PAN-OS versions for the bug to be triggered.

Who should be concerned about this vulnerability?

Organizations using PAN-OS with the GlobalProtect Portal or Gateway interface enabled should be concerned. These interfaces are often internet-facing, making them accessible to remote attackers.

What are the first steps for managing this threat?

Organizations should identify any exposed GlobalProtect assets, restrict network access to them if possible, and apply vendor patches as soon as they are available.

References