CVE-2021-42757
CVSS V2 Medium 4.6
CVSS V3 Medium 6.7
Description
A buffer overflow [CWE-121] in the TFTP client library of FortiOS before 6.4.7 and FortiOS 7.0.0 through 7.0.2, may allow an authenticated local attacker to achieve arbitrary code execution via specially crafted command line arguments.
Overview
- CVE ID
- CVE-2021-42757
- Assigner
- psirt@fortinet.com
- Vulnerability Status
- Analyzed
- Published Version
- 2021-12-08T11:15:11
- Last Modified Date
- 2021-12-09T17:41:46
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:fortinet:fortianalyzer:*:*:*:*:*:*:*:* | 1 | OR | 6.0.0 | 7.0.2 |
| cpe:2.3:a:fortinet:fortimanager:*:*:*:*:*:*:*:* | 1 | OR | 6.0.0 | 7.0.2 |
| cpe:2.3:a:fortinet:fortiweb:*:*:*:*:*:*:*:* | 1 | OR | 5.0.0 | 6.4.1 |
| cpe:2.3:o:fortinet:fortios:*:*:*:*:*:*:*:* | 1 | OR | 5.0.0 | 7.0.2 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:P/I:P/A:P
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- 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:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- LOCAL
- Attack Compatibility
- LOW
- Privileges Required
- HIGH
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 6.7
- Base Severity
- MEDIUM
- Exploitability Score
- 0.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://fortiguard.com/advisory/FG-IR-21-173 | Vendor Advisory |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2021-42757 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-42757 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 06:42:01 | Added to TrackCVE | |||
| 2022-12-06 03:17:15 | 2021-12-08T11:15Z | 2021-12-08T11:15:11 | CVE Published Date | updated |
| 2022-12-06 03:17:15 | 2021-12-09T17:41:46 | CVE Modified Date | updated | |
| 2022-12-06 03:17:15 | Analyzed | Vulnerability Status | updated |