CVE-2020-25613
Published: 6 October 2020
An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
ruby1.9.1 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
ruby2.0 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
ruby2.3 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Released
(2.3.1-2~ubuntu16.04.15)
|
|
|
ruby2.5 Launchpad, Ubuntu, Debian |
bionic |
Released
(2.5.1-1ubuntu1.8)
|
| focal |
Does not exist
|
|
| groovy |
Does not exist
|
|
| trusty |
Does not exist
|
|
| upstream |
Needs triage
|
|
| xenial |
Does not exist
|
|
|
ruby2.7 Launchpad, Ubuntu, Debian |
bionic |
Does not exist
|
| focal |
Released
(2.7.0-5ubuntu1.3)
|
|
| groovy |
Released
(2.7.1-3ubuntu1.2)
|
|
| trusty |
Does not exist
|
|
| upstream |
Released
(2.7.1-4)
|
|
| xenial |
Does not exist
|
|
|
Patches: upstream: https://github.com/ruby/webrick/commit/8946bb38b4d87549f0d99ed73c62c41933f97cc7 |
||
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | High |
| Availability impact | None |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |