CVE-2020-15261
CVSS V2 High 7.2
CVSS V3 Medium 6.7
Description
On Windows the Veyon Service before version 4.4.2 contains an unquoted service path vulnerability, allowing locally authenticated users with administrative privileges to run malicious executables with LocalSystem privileges. Since Veyon users (both students and teachers) usually don't have administrative privileges, this vulnerability is only dangerous in anyway unsafe setups. The problem has been fixed in version 4.4.2. As a workaround, the exploitation of the vulnerability can be prevented by revoking administrative privileges from all potentially untrustworthy users.
Overview
- CVE ID
- CVE-2020-15261
- Assigner
- security-advisories@github.com
- Vulnerability Status
- Analyzed
- Published Version
- 2020-10-19T22:15:13
- Last Modified Date
- 2022-10-18T20:13:47
Weakness Enumerations
CPE Configuration (Product)
| CPE | Vulnerable | Operator | Version Start | Version End |
|---|---|---|---|---|
| AND | ||||
| cpe:2.3:a:veyon:veyon:*:*:*:*:*:*:*:* | 1 | OR | 4.4.2 | |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | 0 | OR |
CVSS Version 2
- Version
- 2.0
- Vector String
- AV:L/AC:L/Au:N/C:C/I:C/A:C
- Access Vector
- LOCAL
- Access Compatibility
- LOW
- Authentication
- NONE
- Confidentiality Impact
- COMPLETE
- Integrity Impact
- COMPLETE
- Availability Impact
- COMPLETE
- Base Score
- 7.2
- Severity
- HIGH
- Exploitability Score
- 3.9
- Impact Score
- 10
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://github.com/veyon/veyon/commit/f231ec511b9a09f43f49b2c7bb7c60b8046276b1 | Patch Third Party Advisory |
| https://github.com/veyon/veyon/security/advisories/GHSA-c8cc-x786-hqqp | Third Party Advisory |
| https://github.com/veyon/veyon/issues/657 | Issue Tracking Third Party Advisory |
| http://packetstormsecurity.com/files/162873/Veyon-4.4.1-Unquoted-Service-Path.html | |
| https://www.exploit-db.com/exploits/49925 | |
| https://www.exploit-db.com/exploits/48246 |
Sources
| Source Name | Source URL |
|---|---|
| NIST | https://nvd.nist.gov/vuln/detail/CVE-2020-15261 |
| MITRE | https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-15261 |
History
| Created | Old Value | New Value | Data Type | Notes |
|---|---|---|---|---|
| 2022-05-10 07:10:48 | Added to TrackCVE | |||
| 2022-12-05 00:30:04 | 2020-10-19T22:15Z | 2020-10-19T22:15:13 | CVE Published Date | updated |
| 2022-12-05 00:30:04 | 2022-10-18T20:13:47 | CVE Modified Date | updated | |
| 2022-12-05 00:30:04 | Analyzed | Vulnerability Status | updated |