External risk intelligence

Cobalt Strike UI Vulnerability Allows Remote Code Execution.

CVE advisoryKnown Exploit

CVE-2022-42948

A vulnerability exists in the Cobalt Strike user interface that allows for remote code execution. Attackers can exploit this by injecting specially crafted HTML, potentially impacting data confidentiality and operational integrity, posing a business risk.

1Halo Surface Signal

Helpsystems Cobalt Strike

4.7.1

External exposure likelihood

Halo Surface Signal score for CVE-2022-42948

Cobalt Strike is a specialized security tool used by security professionals for penetration testing and red teaming. It is typically deployed as a client-side management console for authorized operators rather than an internet-facing service, and the vulnerability exists specifically within the Java Swing user interface components, which are not intended to be exposed to the public internet.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Horizon Alert

Summary of the vulnerability and why it matters

A vulnerability has been identified in Cobalt Strike's user interface, specifically related to how it handles HTML tags. This flaw could allow attackers to execute arbitrary code remotely by injecting specially crafted HTML. The impact of such an execution could affect the integrity and confidentiality of data, disrupt operations, and lead to significant business risk.

  • Vulnerable component: Cobalt Strike user interface
  • Core weakness: Improper HTML tag handling
  • Main business impact: Remote code execution

Attack Path

How an attacker could exploit the issue

This vulnerability allows for remote code execution within the Cobalt Strike user interface. An attacker can exploit this by injecting specially crafted HTML code when the application fails to properly escape HTML tags. This could lead to unauthorized control of the affected system.

  • Application displays HTML without proper escaping.
  • Attacker injects malicious HTML code.
  • Remote code execution within the UI.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability could allow an attacker to execute arbitrary code on the Cobalt Strike user interface. The impact could be significant, potentially compromising systems and data managed by Cobalt Strike. Organizations using the affected version should consider this a high-priority issue.

  • Attackers with moderate skill.
  • Requires unauthenticated network access.
  • High business risk and urgency.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability allows for remote code execution within the Cobalt Strike user interface through crafted HTML. Organizations using the affected software should take immediate steps to mitigate the risk. This includes identifying all instances of the software, reducing its exposure, and applying the vendor-provided fix. Continuous monitoring is also recommended to detect any related suspicious activity.

  • Identify all affected assets.
  • Reduce exposure or isolate risk.
  • Fix, verify, and monitor.

Frequently asked questions

What is Cobalt Strike and its purpose in cybersecurity?

Cobalt Strike is a specialized security tool utilized by cybersecurity professionals for penetration testing and red teaming exercises. It functions as a client-side management console designed to help authorized operators simulate cyberattacks, thereby identifying potential weaknesses in an organization's defensive infrastructure.

How does the vulnerability in Cobalt Strike (CVE-2022-42948) lead to remote code execution?

CVE-2022-42948 is categorized as a CWE-116 weakness, stemming from Cobalt Strike's failure to properly escape HTML tags displayed within its user interface. Exploiting this flaw involves an attacker injecting carefully crafted HTML code, which can then trigger remote code execution within the Cobalt Strike user interface.

What specific weakness class is associated with CVE-2022-42948, and how does it enable exploitation?

The weakness class associated with CVE-2022-42948 is CWE-116. This classification indicates an improper neutralization of HTML within scripts in the affected software. By failing to properly escape HTML tags, Cobalt Strike's user interface becomes susceptible to specially crafted HTML injections that can lead to unauthorized code execution.

What is the significance of CVE-2022-42948 for organizations using Cobalt Strike?

The significance of CVE-2022-42948 lies in its potential to allow arbitrary code execution within the Cobalt Strike user interface. This critical vulnerability, identified by CISA and relevant to the Halo Surface Signal, poses a considerable risk, potentially enabling attackers to compromise systems and sensitive data managed by Cobalt Strike.

What are the recommended actions for organizations to address the Cobalt Strike vulnerability?

Organizations using the affected version of Cobalt Strike should prioritize mitigation by identifying all instances of the software. It is advisable to reduce the exposure of these instances, isolate any identified risks, and promptly apply vendor-provided fixes. Continuous monitoring for any related suspicious activities is also a crucial step in the response process.

References

Sources and related resources

Primary sources: NVD, CVE.org, CISA KEV.

NVDPublished Modified