External risk intelligence

Adobe ColdFusion Code Execution Vulnerability

CVE advisoryKnown Exploit

CVE-2023-26359

A deserialization vulnerability affects Adobe ColdFusion, allowing remote code execution without user interaction. This poses a significant business risk, potentially leading to data breaches and system compromise.

4Halo Surface Signal

Deserialization

Adobe Coldfusion

20182021

External exposure likelihood

Halo Surface Signal score for CVE-2023-26359

Adobe ColdFusion is a commercial application server platform typically deployed to host and serve web applications and APIs, making it a common internet-facing web technology in enterprise environments.

Horizon Alert

Summary of the vulnerability and why it matters

Adobe ColdFusion is affected by a deserialization vulnerability. This flaw allows for arbitrary code execution, which could lead to significant business risk. The vulnerability enables attackers to execute code within the context of the current user without requiring any interaction.

  • Adobe ColdFusion
  • Deserialization of untrusted data
  • Arbitrary code execution

Attack Path

How an attacker could exploit the issue

An attacker can exploit a deserialization vulnerability in Adobe ColdFusion to gain control of the affected system. This attack does not require any interaction from a user, as it can be triggered remotely. Successful exploitation allows an attacker to execute arbitrary code within the context of the current user, potentially leading to significant business risk.

  • Exposure via network.
  • Attacker sends malicious data.
  • Arbitrary code execution.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability affects Adobe ColdFusion, a platform used for web applications and APIs. Attackers with a high skill level could exploit this issue to execute arbitrary code on affected systems. The exploitation does not require user interaction and could lead to significant business risk due to potential data compromise and system disruption.

  • Likely attacker skill level: High.
  • Required access or conditions: Network access, no user interaction.
  • Business risk or urgency: Critical.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

A deserialization of untrusted data vulnerability affects Adobe ColdFusion, potentially allowing arbitrary code execution. This vulnerability does not require user interaction for exploitation and presents a critical risk to affected organizations. The exploitation vector is network-based, indicating potential exposure to external threats.

  • Find exposed Adobe ColdFusion assets.
  • Reduce exposure or isolate risk.
  • Apply vendor fix, verify, and monitor.

Frequently asked questions

What is Adobe ColdFusion and what are the vulnerable versions affected by CVE-2023-26359?

Adobe ColdFusion versions 2018 Update 15 and earlier, as well as 2021 Update 5 and earlier, are affected by a critical deserialization vulnerability. This flaw allows for arbitrary code execution within the context of the current user, posing a significant risk to organizations utilizing these versions. The vulnerability does not require user interaction for exploitation.

How does the Deserialization of Untrusted Data vulnerability (CWE-502) in Adobe ColdFusion enable arbitrary code execution?

The Deserialization of Untrusted Data vulnerability (CWE-502) in Adobe ColdFusion occurs when the software processes untrusted serialized data. Attackers can craft malicious serialized data which, when deserialized by ColdFusion, leads to the execution of arbitrary code on the server. This is possible because the deserialization process can be tricked into running attacker-controlled code.

What is the attack path and scope for CVE-2023-26359 in Adobe ColdFusion?

The attack path for CVE-2023-26359 involves an attacker sending malicious data over the network to an unpatched Adobe ColdFusion instance. Exploitation does not require any user interaction and the scope is not altered, meaning the vulnerability impacts the same security authority. This network-based vector allows for remote exploitation without needing prior access or privileges.

Why is CVE-2023-26359 considered a critical threat, and what is its relevance to organizations using Adobe ColdFusion?

CVE-2023-26359 is rated critical due to its potential for arbitrary code execution, which can lead to a full system compromise. Adobe ColdFusion is a platform for web applications and APIs, making it a common target. The vulnerability's network-based exploitability and lack of user interaction requirement make it highly relevant and a significant risk for businesses relying on these services, potentially leading to data breaches and service disruption.

What are the recommended practical steps to mitigate the risk of CVE-2023-26359 in Adobe ColdFusion environments?

To address CVE-2023-26359, organizations should first identify all exposed Adobe ColdFusion assets. Subsequently, reduce their exposure or isolate any identified risks. The most crucial step is to apply the vendor-provided security updates for Adobe ColdFusion to patch the vulnerability. After applying the fix, verification is essential, followed by continuous monitoring of the environment for any signs of compromise.

References