External risk intelligence

RSA Authentication Agent Path Interception Vulnerability

CVE advisorySeverity: CRITICAL (CVSS 9.8)

CVE-2024-47856

This vulnerability affects a local RSA Authentication Agent on Windows. It requires an attacker to already have local access to place a malicious executable in a specific directory path to trigger the path interception. It is not an internet-facing service or remotely reachable component.

Path Traversal

Rsa Authentication Agent For Windows

before 7.4.7

Halo Surface Signal: 1 out of 5 — much less likely to be public-facing.

External exposure likelihood

Horizon Alert

Summary of the vulnerability and why it matters

A security vulnerability has been identified in RSA Authentication Agent for Windows. This issue, if exploited, could allow an unauthorized party to execute malicious code by intercepting program paths that contain spaces and are not properly quoted. The primary concern is to confirm whether this specific technology is in use within our environment and if it is exposed to any potential risk.

  • Path interception bug in authentication software.
  • Confirm use and exposure of this specific technology.
  • Assess relevant systems to understand potential impact.

Attack Path

How an attacker could exploit the issue

An attacker could exploit this vulnerability by creating a specially crafted path containing spaces that leads to the execution of malicious code. This could happen if the software incorrectly resolves a path that is not properly quoted, allowing an attacker to place an executable in a directory that is resolved before the intended program. This could allow an adversary to gain elevated privileges or execute arbitrary code on the system.

  • Entry condition: Attacker can control directory paths.
  • Trigger point: Software resolves unquoted paths with spaces.
  • Resulting risk: Arbitrary code execution and system compromise.

Live Threat

Current exploitation, exposure, and threat context

When supported by the advisory, a vulnerability in the RSA Authentication Agent could allow an attacker to execute malicious code by exploiting how the system resolves executable paths. This occurs if the path contains spaces and is not properly quoted, enabling an attacker to place a malicious executable in a higher-level directory that the system may then resolve instead of the intended one.

  • Compromise of agent executables.
  • Malicious executable placed in path.
  • Unauthorized code execution.

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in RSA Authentication Agent requires the active involvement of the infrastructure or platform team responsible for managing the agent's deployment. The first practical step is to inventory all systems running the affected agent, confirm its business criticality and network reachability, and identify the accountable owner for each instance. This will inform a prioritized remediation plan.

  • Infrastructure or platform teams own the issue.
  • Verify agent presence and network exposure.
  • Plan for agent upgrade or mitigation.

Supplementary metadata

Validate whether this threat affects your internet-facing exposure.

Halo Threat Intelligence helps prioritize remediation with Halo Surface Signal and H/A/L/O context. Start exposure validation with a free external attack surface trial.

Frequently asked questions

What is the RSA Authentication Agent for Windows?

This software is a security component installed on Windows systems that integrates with authentication servers. It manages how users sign into workstations or networks by validating credentials. Businesses use it to ensure that only authorized personnel can access corporate resources, acting as a bridge between the local machine and identity management services.

How does CVE-2024-47856 create a security risk?

This vulnerability, classified as CWE-23 (Relative Path Traversal), occurs because the software handles certain file paths insecurely. When a path contains spaces and lacks quotation marks, the Windows operating system may become confused about which file to run. An attacker can use this confusion to trick the system into launching a malicious program instead of the legitimate RSA agent software.

Do I need to worry about remote attacks for this bug?

No. The vulnerability requires an attacker to already have local access to the system to place a malicious file in a specific directory. Simply sending traffic over the internet will not trigger this flaw. The attack does not activate if the system paths are correctly configured or if the attacker lacks the local file system permissions required to plant the fake executable.

Is my network at risk due to this vulnerability?

According to Halo Surface Signal, this is highly unlikely to be an internet-facing risk. Because this vulnerability relies on local file manipulation rather than a network service, it cannot be triggered remotely. It primarily concerns the security of the local host environment where the RSA agent is installed, rather than the network perimeter.

How do I respond to this vulnerability?

The first step is to locate all instances of the RSA Authentication Agent within your environment. Verify which systems are running versions earlier than 7.4.7, as these are the affected releases. Once identified, coordinate with your infrastructure or platform management teams to schedule and apply the update to version 7.4.7 or later to ensure the path handling issue is resolved.

References