CVE-2020-27386
CVSS V2 Medium 6.5
CVSS V3 High 8.8
Description
An unrestricted file upload issue in FlexDotnetCMS before v1.5.9 allows an authenticated remote attacker to upload and execute arbitrary files by using the FileManager to upload malicious code (e.g., ASP code) in the form of a safe file type (e.g., a TXT file), and then using the FileEditor (in v1.5.8 and prior) or the FileManager's rename function (in v1.5.7 and prior) to rename the file to an executable extension (e.g., ASP), and finally executing the file via an HTTP GET request to /<path_to_file>.
Overview
- CVE ID
- CVE-2020-27386
- Assigner
- cve@mitre.org
- Vulnerability Status
- Analyzed
- Published Version
- 2020-11-12T19:15:15
- Last Modified Date
- 2022-12-06T21:18:24
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| cpe:2.3:a:flexdotnetcms_project:flexdotnetcms:*:*:*:*:*:*:*:* | 1 | OR | 1.5.9 |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:N/AC:L/Au:S/C:P/I:P/A:P
- Access Vector
- NETWORK
- Access Compatibility
- LOW
- Authentication
- SINGLE
- Confidentiality Impact
- PARTIAL
- Integrity Impact
- PARTIAL
- Availability Impact
- PARTIAL
- Base Score
- 6.5
- Severity
- MEDIUM
- Exploitability Score
- 8
- Impact Score
- 6.4
CVSS Version 3
- Version
- 3.1
- Vector String
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Attack Vector
- NETWORK
- Attack Compatibility
- LOW
- Privileges Required
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality Impact
- HIGH
- Availability Impact
- HIGH
- Base Score
- 8.8
- Base Severity
- HIGH
- Exploitability Score
- 2.8
- Impact Score
- 5.9
References
| Reference URL | Reference Tags |
|---|---|
| https://blog.vonahi.io/whats-in-a-re-name/ | Exploit Third Party Advisory |
| https://github.com/rapid7/metasploit-framework/pull/14339 | Exploit Patch Third Party Advisory |
| https://github.com/MacdonaldRobinson/FlexDotnetCMS/releases/tag/v1.5.9 | Release Notes Third Party Advisory |
| http://packetstormsecurity.com/files/160411/FlexDotnetCMS-1.5.8-Arbitrary-ASP-File-Upload.html |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-27386 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-27386 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:30:56 | Added to TrackCVE | |||
| 2022-12-05 16:46:15 | 2020-11-12T19:15Z | 2020-11-12T19:15:15 | CVE Published Date | updated |
| 2022-12-05 16:46:15 | 2020-12-08T19:15:12 | CVE Modified Date | updated | |
| 2022-12-05 16:46:15 | Undergoing Analysis | Vulnerability Status | updated | |
| 2022-12-06 22:11:38 | 2022-12-06T21:18:24 | CVE Modified Date | updated | |
| 2022-12-06 22:11:38 | Undergoing Analysis | Analyzed | Vulnerability Status | updated |