A vulnerability in the web-based management interface of Cisco AsyncOS Software for Cisco Secure Email Gateway and Cisco Secure Web Appliance could allow an authenticated, remote attacker to perform command injection attacks against an affected device. The attacker must authenticate with valid administrator credentials.
This vulnerability is due to insufficient validation of XML configuration files by an affected device. An attacker could exploit this vulnerability by uploading a crafted XML configuration file. A successful exploit could allow the attacker to inject commands to the underlying operating system with root privileges.
The CVSS score for this vulnerability is 6.5, which is categorized as medium severity. Organizations should address this issue in their priority patch cycle to mitigate potential risks.
Risk to organizations includes the possibility of unauthorized command execution, potentially leading to system compromise. Given the nature of this vulnerability, timely remediation is critical.
No public exploit has been confirmed, but organizations must remain vigilant as the exploitation potential exists.
Vulnerability Details
The vulnerability identified as CVE-2025-20184 affects multiple versions of Cisco AsyncOS. It allows an authenticated attacker to perform command injection attacks due to insufficient validation of XML configuration files.
The CVSS score of 6.5 indicates medium severity, while the attack vector is classified as network, and the attack complexity is low. The attacker requires high privileges to exploit this vulnerability, and user interaction is not required.
Affected products include various versions of Cisco AsyncOS. These include versions from 11.8.0 up to 15.5.3. The vulnerability is classified under CWE-20 (Improper Input Validation) and CWE-77 (Command Injection).
Technical Analysis
The root cause of this vulnerability lies in the insufficient validation of XML configuration files. Attackers may leverage this weakness by uploading a malicious XML file which can execute arbitrary commands on the underlying operating system.
The attack vector is network-based, allowing remote exploitation. With a low complexity requirement, it poses a significant risk, particularly given that attackers must possess valid administrator credentials to proceed with exploitation.
As for user interaction, none is required for an attacker to exploit this vulnerability. If successfully exploited, the impacts on confidentiality and integrity are high, while availability is not affected.
Risk & Impact Analysis
Organizations face real-world risks due to the potential for unauthorized command execution, leading to system compromise. This vulnerability could have a broad impact on affected systems, especially if exploited in conjunction with other vulnerabilities.
Given the urgency indicated by the CVSS score and the nature of the vulnerability, organizations should prioritize patching immediately. The blast radius could be considerable, especially in environments where Cisco AsyncOS is deployed.
This vulnerability serves as a reminder of the importance of robust input validation in software development. Organizations should evaluate their security posture and ensure that proper validation mechanisms are in place to prevent similar vulnerabilities.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The following versions of Cisco AsyncOS are affected by this vulnerability:
All versions prior to vendor patch, including 11.8.0 to 15.5.3.
Mitigation & Remediation
Organizations should validate remediation through penetration testing to identify similar weaknesses. It is crucial to upgrade to patched versions of Cisco AsyncOS as soon as possible.
For organizations unable to apply patches immediately, consider implementing configuration hardening measures and network controls to mitigate exposure.
Detection Guidance
Monitoring logs for indicators of unauthorized command execution attempts and behavioral anomalies can help in detecting potential exploitation attempts.
Network signatures should be established for traffic patterns indicative of exploitation attempts, especially related to XML configuration file uploads.
AppSecure Threat Intelligence Insight
This vulnerability highlights the importance of maintaining up-to-date security practices in software development, particularly with respect to input validation.
Organizations should regularly review and update their security controls to adapt to evolving threats and vulnerabilities.
For more information on securing applications, organizations may refer to our vulnerability management program and other related resources.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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