CVE-2020-15113
Published: 5 August 2020
In etcd before versions 3.3.23 and 3.4.10, certain directory paths are created (etcd data directory and the directory path when provided to automatically generate self-signed certificates for TLS connections with clients) with restricted access permissions (700) by using the os.MkdirAll. This function does not perform any permission checks when a given directory path exists already. A possible workaround is to ensure the directories have the desired permission (700).
Priority
Status
| Package | Release | Status |
|---|---|---|
|
etcd Launchpad, Ubuntu, Debian |
bionic |
Released
(3.2.17+dfsg-1ubuntu0.1+esm1)
Available with Ubuntu Pro |
| focal |
Released
(3.2.26+dfsg-6ubuntu0.1)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Needed
|
|
| kinetic |
Ignored
(end of life, was needed)
|
|
| lunar |
Ignored
(end of life, was needed)
|
|
| mantic |
Needed
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(3.3.23, 3.4.10)
|
|
| xenial |
Needed
|
|
|
Patches: upstream: https://github.com/etcd-io/etcd/commit/ac37d3499e965946bd39ee7260a27a0a3e796b14 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.1 |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | Low |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N |