CVE-2021-28496
CVSS V2 Medium 4
CVSS V3 Medium 6.5
Description
On systems running Arista EOS and CloudEOS with the affected release version, when using shared secret profiles the password configured for use by BiDirectional Forwarding Detection (BFD) will be leaked when displaying output over eAPI or other JSON outputs to other authenticated users on the device. The affected EOS Versions are: all releases in 4.22.x train, 4.23.9 and below releases in the 4.23.x train, 4.24.7 and below releases in the 4.24.x train, 4.25.4 and below releases in the 4.25.x train, 4.26.1 and below releases in the 4.26.x train
Overview
- CVE ID
- CVE-2021-28496
- Assigner
- psirt@arista.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-10-21T17:15:07
- Last Modified Date
- 2022-07-30T12:29:59
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | 1 | OR | 4.22 | 4.22.7m |
| cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | 1 | OR | 4.23 | 4.23.10 |
| cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | 1 | OR | 4.24 | 4.24.8 |
| cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | 1 | OR | 4.25 | 4.25.5 |
| cpe:2.3:o:arista:eos:*:*:*:*:*:*:*:* | 1 | OR | 4.26 | 4.26.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:N/A:N
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- NONE
- Availability Impact
- NONE
- Base Score
- 4
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 2.9
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- NONE
- Base Score
- 6.5
- Base Severity
- MEDIUM
- Exploitability Score
- 2.8
- Impact Score
- 3.6
References
| Reference URL | Reference Tags |
|---|---|
| https://www.arista.com/en/support/advisories-notices/security-advisories/13243-security-advisory-0069 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-28496 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-28496 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:49:15 | Added to TrackCVE | |||
| 2022-12-05 13:01:27 | 2021-10-21T17:15Z | 2021-10-21T17:15:07 | CVE Published Date | updated |
| 2022-12-05 13:01:27 | 2022-07-30T12:29:59 | CVE Modified Date | updated | |
| 2022-12-05 13:01:27 | Analyzed | Vulnerability Status | updated |