CVE-2020-26160
Published: 30 September 2020
jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if the JWT token is presented to a service that lacks its own audience check.
Notes
| Author | Note |
|---|---|
| mdeslaur | as of 2020-10-02, the proposed patches have not been accepted into the upstream tree. juju-core doesn't use jwt-go in a way that exposes the vulnerability |
Priority
Status
| Package | Release | Status |
|---|---|---|
|
golang-github-coreos-discovery-etcd-io Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Ignored
(end of life, was needs-triage)
|
|
| mantic |
Needs triage
|
|
| noble |
Needs triage
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
golang-github-dgrijalva-jwt-go Launchpad, Ubuntu, Debian |
bionic |
Needs triage
|
| focal |
Needs triage
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Not vulnerable
(3.2.0-3)
|
|
| impish |
Not vulnerable
(3.2.0-3)
|
|
| jammy |
Not vulnerable
(3.2.0-3)
|
|
| kinetic |
Not vulnerable
(3.2.0-3)
|
|
| lunar |
Not vulnerable
(3.2.0-3)
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Needs triage
|
|
|
Patches: upstream: https://github.com/dgrijalva/jwt-go/pull/426 upstream: https://github.com/dgrijalva/jwt-go/pull/429 upstream: https://github.com/dgrijalva/jwt-go/pull/426/commits/3de6896380f6384c03c944a9e5e65742f8034e98 upstream: https://github.com/dgrijalva/jwt-go/pull/426/commits/4ea2e3f2079a8f285d88895a91d6a12a4c46b04d upstream: https://github.com/dgrijalva/jwt-go/pull/429/commits/6474ec954fc07431130ee4728ac69bf6e68b2744 |
||
|
juju-core Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| hirsute |
Does not exist
|
|
| impish |
Does not exist
|
|
| jammy |
Does not exist
|
|
| kinetic |
Does not exist
|
|
| lunar |
Does not exist
|
|
| mantic |
Does not exist
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Not vulnerable
(2.3.7-0ubuntu0.16.04.1)
|
|
|
telegraf Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Ignored
(end of life)
|
|
| hirsute |
Ignored
(end of life)
|
|
| impish |
Ignored
(end of life)
|
|
| jammy |
Needs triage
|
|
| kinetic |
Ignored
(end of life, was needs-triage)
|
|
| lunar |
Ignored
(end of life, was needs-triage)
|
|
| mantic |
Needs triage
|
|
| noble |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | None |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |