CVE-2021-22884
Published: 3 March 2021
Node.js before 10.24.0, 12.21.0, 14.16.0, and 15.10.0 is vulnerable to DNS rebinding attacks as the whitelist includes “localhost6”. When “localhost6” is not present in /etc/hosts, it is just an ordinary domain that is resolved via DNS, i.e., over network. If the attacker controls the victim's DNS server or can spoof its responses, the DNS rebinding protection can be bypassed by using the “localhost6” domain. As long as the attacker uses the “localhost6” domain, they can still apply the attack described in CVE-2018-7160.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
nodejs
Launchpad, Ubuntu, Debian |
bionic |
Released
(8.10.0~dfsg-2ubuntu0.4+esm3)
Available with Ubuntu Pro |
| focal |
Released
(10.19.0~dfsg-3ubuntu1.2)
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Not vulnerable
(12.22.9~dfsg-1ubuntu3)
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Not vulnerable
(18.7.0+dfsg-5ubuntu1)
|
|
| mantic |
Not vulnerable
(18.7.0+dfsg-5ubuntu1)
|
|
| trusty |
Not vulnerable
(code not present)
|
|
| upstream |
Released
(12.21.0~dfsg-1)
|
|
| xenial |
Not vulnerable
(code not present)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | High |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |