CVE-2021-3560
Published: 3 June 2021
It was found that polkit could be tricked into bypassing the credential checks for D-Bus requests, elevating the privileges of the requestor to the root user. This flaw could be used by an unprivileged local attacker to, for example, create a new local administrator. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
Notes
| Author | Note |
|---|---|
| mdeslaur |
commit introducing issue was backported to policykit-1 version in Ubuntu in focal+ |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
policykit-1
Launchpad, Ubuntu, Debian |
bionic |
Not vulnerable
(code not present)
|
| focal |
Released
(0.105-26ubuntu1.1)
|
|
| groovy |
Released
(0.105-29ubuntu0.1)
|
|
| hirsute |
Released
(0.105-30ubuntu0.1)
|
|
| impish |
Released
(0.105-31)
|
|
| jammy |
Released
(0.105-31)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(code not present)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.8 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |