CVE-2025-21117 is a medium-severity vulnerability affecting Dell Avamar, specifically versions 19.4 and later. This vulnerability allows for access token reuse in the Authentication User Interface (AUI). A local attacker with low privileges could exploit this vulnerability to fully impersonate a legitimate user, which poses significant risks to security.
With a CVSS score of 6.6, the vulnerability falls into the medium severity category. The implications of this vulnerability could lead to unauthorized access and manipulation of sensitive information, making it critical for organizations using this software to assess their exposure.
The vulnerability has been analyzed and is officially documented. Its publication date was February 5, 2025, with the last modification on March 28, 2025. Given the potential for misuse, organizations should prioritize remediation efforts to safeguard their environments.
Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability and ensure the integrity of their systems.
Vulnerability Details
The official description of CVE-2025-21117 states that Dell Avamar, version 19.4 or later, contains an access token reuse vulnerability in the AUI. This vulnerability allows a low privileged local attacker to exploit the system, potentially leading to full user impersonation.
The CVSS score of 6.6 indicates a medium severity level, highlighting the seriousness of the impact on confidentiality and integrity. This vulnerability is categorized under CWE-672, which addresses issues related to access control.
Affected products include Dell Avamar Server versions 19.4, 19.7, 19.8, 19.9, and 19.10, including service packs. The potential for exploitation is moderate, making it essential for organizations to take prompt action.
Technical Analysis
The root cause of CVE-2025-21117 lies in the improper handling of access tokens within the AUI. This token reuse flaw enables attackers to impersonate legitimate users by leveraging low-level privileges. The attack vector is local, meaning that an attacker must have physical access or local system access to exploit this vulnerability.
The complexity of the attack is low, with required privileges classified as low. User interaction is needed for exploitation, as the attacker must authenticate to the system using valid credentials. This vulnerability could impact confidentiality and integrity significantly, with no effect on availability.
Risk & Impact Analysis
The real-world deployment risk associated with CVE-2025-21117 is substantial. Organizations using affected versions of Dell Avamar are exposed to the possibility of unauthorized access to sensitive data. The potential blast radius is significant, especially in environments handling critical information.
The urgency for remediation is highlighted by the medium CVSS score and the potential for exploitation. Although the vulnerability is not currently tracked in the KEV catalog, organizations should remain vigilant and address this issue promptly to avoid potential breaches.
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected versions of Dell Avamar include 19.4, 19.7, 19.8, 19.9, and 19.10, including service pack 1. Organizations should ensure they are running versions that have been patched to prevent exploitation of this vulnerability.
Mitigation & Remediation
To mitigate the risks associated with CVE-2025-21117, organizations should apply the latest security patches provided by Dell. Details regarding patches can be found in the vendor advisory. Organizations should also consider implementing strict access controls and monitoring to detect any unauthorized access attempts.
For more information on effective remediation strategies, organizations can refer to penetration testing services to assess their vulnerability management processes.
Detection Guidance
Organizations should monitor their systems for any indicators of compromise related to this vulnerability. Log indicators may include unauthorized attempts to access user accounts and behavioral anomalies that suggest token misuse.
Additionally, establish network signatures to detect potential exploitation attempts and regularly review system changes for any unauthorized modifications.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2025-21117 highlights the importance of robust access control mechanisms in application security. This vulnerability reflects a broader pattern of risks related to access token management, which security teams must address proactively.
The incident underscores the need for continuous vigilance and improvement in security practices. For organizations looking to enhance their security posture, engaging in vulnerability management programs and regular penetration testing activities can provide valuable insights into their security posture.
It is essential to implement lessons learned from vulnerabilities like CVE-2025-21117 to prevent future incidents and improve the overall resilience of systems.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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