CVE-2018-20839
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
systemd 242 changes the VT1 mode upon a logout, which allows attackers to read cleartext passwords in certain circumstances, such as watching a shutdown, or using Ctrl-Alt-F1 and Ctrl-Alt-F2. This occurs because the KDGKBMODE (aka current keyboard mode) check is mishandled.
El systemd 242 cambia el VT1 mode al terminar la sesión, esto permite a los atacantes leer contraseñas de texto simple en algunas circunstancias, tales como ver un apagado o usar Ctrl-Alt-F1 y Ctrl-Alt-F2. Esto ocurre porque la comprobación KDGKBMODE (también conocido como modo de teclado actual) es manejada incorrectamente.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-05-16 CVE Reserved
- 2019-05-17 CVE Published
- 2024-08-05 CVE Updated
- 2024-10-25 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| http://www.securityfocus.com/bid/108389 | Third Party Advisory | |
| https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1803993 | Issue Tracking | |
| https://github.com/systemd/systemd/pull/12378 | Third Party Advisory | |
| https://lists.apache.org/thread.html/rf9fa47ab66495c78bb4120b0754dd9531ca2ff0430f6685ac9b07772%40%3Cdev.mina.apache.org%3E | Mailing List |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://github.com/systemd/systemd/commit/9725f1a10f80f5e0ae7d9b60547458622aeb322f | 2023-11-07 | |
| https://security.netapp.com/advisory/ntap-20190530-0002 | 2023-11-07 |
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Netapp Search vendor "Netapp" | Cn1610 Firmware Search vendor "Netapp" for product "Cn1610 Firmware" | - | - |
Affected
| in | Netapp Search vendor "Netapp" | Cn1610 Search vendor "Netapp" for product "Cn1610" | - | - |
Safe
|
| Systemd Project Search vendor "Systemd Project" | Systemd Search vendor "Systemd Project" for product "Systemd" | 242 Search vendor "Systemd Project" for product "Systemd" and version "242" | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Snapprotect Search vendor "Netapp" for product "Snapprotect" | - | - |
Affected
| ||||||
| Netapp Search vendor "Netapp" | Solidfire \& Hci Management Node Search vendor "Netapp" for product "Solidfire \& Hci Management Node" | - | - |
Affected
| ||||||