CVE-2024-1724
Published: 1 July 2024
In snapd versions prior to 2.62, when using AppArmor for enforcement of sandbox permissions, snapd failed to restrict writes to the $HOME/bin path. In Ubuntu, when this path exists, it is automatically added to the users PATH. An attacker who could convince a user to install a malicious snap which used the 'home' plug could use this vulnerability to install arbitrary scripts into the users PATH which may then be run by the user outside of the expected snap sandbox and hence allow them to escape confinement.
Notes
| Author | Note |
|---|---|
| sarnold |
CWE-732 CAPEC-1 |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
snapd
Launchpad, Ubuntu, Debian |
bionic |
Needed
|
| focal |
Released
(2.63+20.04ubuntu0.1)
|
|
| jammy |
Released
(2.63+22.04ubuntu0.1)
|
|
| mantic |
Ignored
(end of life, was needed)
|
|
| noble |
Released
(2.62+24.04build1)
|
|
| trusty |
Ignored
(end of standard support)
|
|
| upstream |
Released
(2.62)
|
|
| xenial |
Needed
|
|
|
Patches:
upstream: https://github.com/snapcore/snapd/commit/aa191f97713de8dc3ce3ac818539f0b976eb8ef6 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 6.3 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Changed |
| Confidentiality | Low |
| Integrity impact | Low |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |