CVE-2017-7358
LightDM (Ubuntu 16.04/16.10) - 'Guest Account' Local Privilege Escalation
Severity Score
7.3
*CVSS v3
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
2
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
In LightDM through 1.22.0, a directory traversal issue in debian/guest-account.sh allows local attackers to own arbitrary directory path locations and escalate privileges to root when the guest user logs out.
La función ping_unhash en net/ipv4/ping.c en el kernel de Linux en versiones hasta 4.10.8 es demasiado tarde para obtener un determinado bloqueo y por lo tanto, no puede garantizar que las llamadas de función de desconexión son seguras, lo que permite a los usuarios locales causar una denegación de servicio (pánico) aprovechando el acceso al valor de protocolo de IPPROTO_ICMP en una llamada de sistema de socket.
*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
- 2017-03-30 CVE Reserved
- 2017-04-05 CVE Published
- 2023-02-25 First Exploit
- 2023-03-08 EPSS Updated
- 2024-08-05 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CAPEC
References (7)
| URL | Tag | Source |
|---|---|---|
| http://bazaar.launchpad.net/~lightdm-team/lightdm/trunk/revision/2478 | Third Party Advisory | |
| http://www.securityfocus.com/bid/97486 | Third Party Advisory | |
| https://launchpad.net/bugs/1677924 | Third Party Advisory | |
| https://lists.freedesktop.org/archives/lightdm/2017-April/001059.html | Third Party Advisory | |
| https://www.ubuntu.com/usn/usn-3255-1 | Third Party Advisory |
|
| URL | Date | SRC |
|---|---|---|
| https://www.exploit-db.com/exploits/41923 | 2024-08-05 | |
| https://github.com/JonPichel/CVE-2017-7358 | 2023-02-25 |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Lightdm Project Search vendor "Lightdm Project" | Lightdm Search vendor "Lightdm Project" for product "Lightdm" | <= 1.22.0 Search vendor "Lightdm Project" for product "Lightdm" and version " <= 1.22.0" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.04" | lts |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 16.10 Search vendor "Canonical" for product "Ubuntu Linux" and version "16.10" | - |
Affected
| ||||||