CVE-2021-21539
CVSS V2 Medium 4.6
CVSS V3 High 7.1
Description
Dell EMC iDRAC9 versions prior to 4.40.00.00 contain a Time-of-check Time-of-use (TOCTOU) race condition vulnerability. A remote authenticated attacker could potentially exploit this vulnerability to gain elevated privileges when a user with higher privileges is simultaneously accessing iDRAC through the web interface.
Overview
- CVE ID
- CVE-2021-21539
- Assigner
- security_alert@emc.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-04-30T21:15:08
- Last Modified Date
- 2021-05-10T18:09:51
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:dell:idrac9_firmware:*:*:*:*:*:*:*:* | 1 | OR | 4.40.00.00 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:H/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- HIGH
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 4.6
- Severity
- MEDIUM
- Exploitability Score
- 3.9
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- HIGH
- Privileges Required
- LOW
- User Interaction
- REQUIRED
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 7.1
- Base Severity
- HIGH
- Exploitability Score
- 1.2
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://www.dell.com/support/kbdoc/000185293 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-21539 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21539 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 16:16:32 | Added to TrackCVE | |||
| 2022-12-05 01:24:12 | secure@dell.com | security_alert@emc.com | CVE Assigner | updated |
| 2022-12-05 01:24:13 | 2021-04-30T21:15Z | 2021-04-30T21:15:08 | CVE Published Date | updated |
| 2022-12-05 01:24:13 | 2021-05-10T18:09:51 | CVE Modified Date | updated | |
| 2022-12-05 01:24:13 | Analyzed | Vulnerability Status | updated |