CVE-2025-21117
Dell Avamar Local Privilege Escalation Arbitrary Token Reuse
Description
Dell Avamar, version 19.4 or later, contains an access token reuse vulnerability in the AUI. A low privileged local attacker could potentially exploit this vulnerability, leading to fully impersonating the user.
INFO
Published Date :
Feb. 5, 2025, 2:15 p.m.
Last Modified :
March 28, 2025, 1:24 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source | 
|---|---|---|---|---|---|---|
| CVSS 3.1 | MEDIUM | [email protected] | ||||
| CVSS 3.1 | MEDIUM | [email protected] | 
Solution
- Update Dell Avamar to the latest version.
 - Apply security patches provided by Dell.
 - Review and restrict local access privileges.
 
References to Advisories, Solutions, and Tools
                                            Here, you will find a curated list of external links that provide in-depth
                                            information, practical solutions, and valuable tools related to
                                            CVE-2025-21117.
                                        
| URL | Resource | 
|---|---|
| https://www.dell.com/support/kbdoc/en-us/000281275/dsa-2025-071-security-update-for-dell-avamar-for-multiple-component-vulnerabilities | Vendor Advisory | 
CWE - Common Weakness Enumeration
            While CVE identifies
            specific instances of vulnerabilities, CWE categorizes the common flaws or
            weaknesses that can lead to vulnerabilities. CVE-2025-21117 is
            associated with the following CWEs:
        
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
            (CAPEC)
            stores attack patterns, which are descriptions of the common attributes and
            approaches employed by adversaries to exploit the CVE-2025-21117
            weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
			The following list is the news that have been mention
			CVE-2025-21117 vulnerability anywhere in the article.
		
                The following table lists the changes that have been made to the
                CVE-2025-21117 vulnerability over time.
            
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
- 
                            
Initial Analysis by [email protected]
Mar. 28, 2025
Action Type Old Value New Value Added CVSS V3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Added CPE Configuration OR *cpe:2.3:a:dell:avamar_server:19.10:sp1:*:*:*:*:*:* *cpe:2.3:a:dell:avamar_server:19.4:*:*:*:*:*:*:* *cpe:2.3:a:dell:avamar_server:19.7:*:*:*:*:*:*:* *cpe:2.3:a:dell:avamar_server:19.8:*:*:*:*:*:*:* *cpe:2.3:a:dell:avamar_server:19.9:*:*:*:*:*:*:* *cpe:2.3:a:dell:avamar_server:19.10:-:*:*:*:*:*:* Added Reference Type Dell: https://www.dell.com/support/kbdoc/en-us/000281275/dsa-2025-071-security-update-for-dell-avamar-for-multiple-component-vulnerabilities Types: Vendor Advisory  - 
                            
New CVE Received by [email protected]
Feb. 05, 2025
Action Type Old Value New Value Added Description Dell Avamar, version 19.4 or later, contains an access token reuse vulnerability in the AUI. A low privileged local attacker could potentially exploit this vulnerability, leading to fully impersonating the user. Added CVSS V3.1 AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N Added CWE CWE-672 Added Reference https://www.dell.com/support/kbdoc/en-us/000281275/dsa-2025-071-security-update-for-dell-avamar-for-multiple-component-vulnerabilities