CVE-2019-9495
The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns
Severity Score
3.7
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
The implementations of EAP-PWD in hostapd and wpa_supplicant are vulnerable to side-channel attacks as a result of cache access patterns. All versions of hostapd and wpa_supplicant with EAP-PWD support are vulnerable. The ability to install and execute applications is necessary for a successful attack. Memory access patterns are visible in a shared cache. Weak passwords may be cracked. Versions of hostapd/wpa_supplicant 2.7 and newer, are not vulnerable to the timing attack described in CVE-2019-9494. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.
Las implementaciones de EAP-PWD en hostapd y wpa_supplicant son vulnerables a los ataques de canal lateral (side-channel) como resultado de los patrones de acceso a la caché. Todas las versiones de hostapd y wpa_supplicant con soporte de EAP-PWD son vulnerables. La capacidad de instalar y ejecutar aplicaciones es necesaria para un ataque con exito. Los patrones de acceso a memoria son visibles en caché compartido. Las contraseñas débiles pueden ser crackeadas. Las versiones de hostapd/wpa_supplicant versión 2.7 y posteriores, no son vulnerables al ataque de tiempo descrito en CVE-2019-9494. Tanto hostapd con soporte EAP-pwd como wpa_supplicant con soporte EAP-pwd anterior y con la versión 2.7 están afectados.
*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
- 2019-03-01 CVE Reserved
- 2019-04-11 CVE Published
- 2024-08-04 CVE Updated
- 2024-11-10 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-203: Observable Discrepancy
- CWE-524: Use of Cache Containing Sensitive Information
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| http://packetstormsecurity.com/files/152914/FreeBSD-Security-Advisory-FreeBSD-SA-19-03.wpa.html | Third Party Advisory |
|
| https://lists.debian.org/debian-lts-announce/2019/07/msg00030.html | Mailing List |
|
| https://seclists.org/bugtraq/2019/May/40 | Mailing List |
|
| https://www.synology.com/security/advisory/Synology_SA_19_16 | Third Party Advisory |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| https://w1.fi/security/2019-2 | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| W1.fi Search vendor "W1.fi" | Hostapd Search vendor "W1.fi" for product "Hostapd" | <= 2.7 Search vendor "W1.fi" for product "Hostapd" and version " <= 2.7" | - |
Affected
| ||||||
| W1.fi Search vendor "W1.fi" | WPA Supplicant Search vendor "W1.fi" for product "WPA Supplicant" | <= 2.7 Search vendor "W1.fi" for product "WPA Supplicant" and version " <= 2.7" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 28 Search vendor "Fedoraproject" for product "Fedora" and version "28" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 29 Search vendor "Fedoraproject" for product "Fedora" and version "29" | - |
Affected
| ||||||
| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 30 Search vendor "Fedoraproject" for product "Fedora" and version "30" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Backports Sle Search vendor "Opensuse" for product "Backports Sle" | 15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0" | - |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Backports Sle Search vendor "Opensuse" for product "Backports Sle" | 15.0 Search vendor "Opensuse" for product "Backports Sle" and version "15.0" | sp1 |
Affected
| ||||||
| Opensuse Search vendor "Opensuse" | Leap Search vendor "Opensuse" for product "Leap" | 15.1 Search vendor "Opensuse" for product "Leap" and version "15.1" | - |
Affected
| ||||||
| Synology Search vendor "Synology" | Radius Server Search vendor "Synology" for product "Radius Server" | 3.0 Search vendor "Synology" for product "Radius Server" and version "3.0" | - |
Affected
| ||||||
| Synology Search vendor "Synology" | Router Manager Search vendor "Synology" for product "Router Manager" | < 1.2.3-8017 Search vendor "Synology" for product "Router Manager" and version " < 1.2.3-8017" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | - |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p2 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p3 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p4 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p5 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p6 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p7 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p8 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | p9 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 11.2 Search vendor "Freebsd" for product "Freebsd" and version "11.2" | rc3 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0" | - |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0" | p1 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0" | p2 |
Affected
| ||||||
| Freebsd Search vendor "Freebsd" | Freebsd Search vendor "Freebsd" for product "Freebsd" | 12.0 Search vendor "Freebsd" for product "Freebsd" and version "12.0" | p3 |
Affected
| ||||||