Current Description
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Source:
MITRE
Description Last Modified:
02/13/2017
View Analysis Description
Analysis Description
pkexec, when used with --user nonpriv, allows local users to escape to the parent session via a crafted TIOCSTI ioctl call, which pushes characters to the terminal's input buffer.
Source:
MITRE
Description Last Modified:
02/13/2017
Impact
CVSS v3.0 Severity and Metrics:
Base Score:
7.8 HIGH
Vector:
AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
(V3 legend)
Impact Score:
6.0
Exploitability Score:
1.1
Attack Vector (AV):
Local
Attack Complexity (AC):
High
Privileges Required (PR):
Low
User Interaction (UI):
None
Scope (S):
Changed
Confidentiality (C):
High
Integrity (I):
High
Availability (A):
High
CVSS v2.0 Severity and Metrics:
Base Score:
4.4 MEDIUM
Vector:
(AV:L/AC:M/Au:N/C:P/I:P/A:P)
(V2 legend)
Impact Subscore:
6.4
Exploitability Subscore:
3.4
Access Vector (AV):
Local
Access Complexity (AC):
Medium
Authentication (AU):
None
Confidentiality (C):
Partial
Integrity (I):
Partial
Availability (A):
Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service
References to Advisories, Solutions, and Tools
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Technical Details
Vulnerability Type
(View All)
- Improper Encoding or Escaping of Output (CWE-116)
Change History
1 change record found
- show changes
Initial Analysis -
3/9/2017 1:30:19 PM
| Action |
Type |
Old Value |
New Value |
| Added |
CPE Configuration |
|
OR
*cpe:2.3:a:freedesktop:polkit:*:*:*:*:*:*:*:* |
| Added |
CVSS V2 |
|
(AV:L/AC:M/Au:N/C:P/I:P/A:P) |
| Added |
CVSS V3 |
|
AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H |
| Added |
CWE |
|
CWE-116 |
| Changed |
Reference Type |
http://www.openwall.com/lists/oss-security/2016/02/26/3 No Types Assigned |
http://www.openwall.com/lists/oss-security/2016/02/26/3 Mailing List, Third Party Advisory |
| Changed |
Reference Type |
https://bugzilla.redhat.com/show_bug.cgi?id=1300746 No Types Assigned |
https://bugzilla.redhat.com/show_bug.cgi?id=1300746 Issue Tracking |