CVE-2019-16201
ruby: Regular expression denial of service vulnerability of WEBrick's Digest authentication
Severity Score
7.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
WEBrick::HTTPAuth::DigestAuth in Ruby through 2.4.7, 2.5.x through 2.5.6, and 2.6.x through 2.6.4 has a regular expression Denial of Service cause by looping/backtracking. A victim must expose a WEBrick server that uses DigestAuth to the Internet or a untrusted network.
La función WEBrick::HTTPAuth::DigestAuth en Ruby versiones hasta la versión 2.4.7, versiones 2.5.x hasta 2.5.6 y versiones 2.6.x hasta 2.6.4, tiene una expresión regular de denegación de servicio causada mediante looping/backtracking. Una víctima debe exponer un servidor WEBrick que usa DigestAuth en Internet o una red no segura.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2019-09-10 CVE Reserved
- 2019-11-26 CVE Published
- 2024-08-05 CVE Updated
- 2024-11-19 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-287: Improper Authentication
- CWE-400: Uncontrolled Resource Consumption
CAPEC
References (13)
| URL | Tag | Source |
|---|---|---|
| https://hackerone.com/reports/661722 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2019/11/msg00025.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2019/12/msg00009.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html | Mailing List |
|
| https://seclists.org/bugtraq/2019/Dec/31 | Mailing List |
|
| https://seclists.org/bugtraq/2019/Dec/32 | Mailing List |
|
| https://www.oracle.com/security-alerts/cpujan2020.html |
|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|---|---|
| http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00041.html | 2023-04-30 | |
| https://security.gentoo.org/glsa/202003-06 | 2023-04-30 | |
| https://www.debian.org/security/2019/dsa-4587 | 2023-04-30 | |
| https://access.redhat.com/security/cve/CVE-2019-16201 | 2022-02-21 | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1773728 | 2022-02-21 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 2.4.0 <= 2.4.7 Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.4.0 <= 2.4.7" | - |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 2.5.0 <= 2.5.6 Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.5.0 <= 2.5.6" | - |
Affected
| ||||||
| Ruby-lang Search vendor "Ruby-lang" | Ruby Search vendor "Ruby-lang" for product "Ruby" | >= 2.6.0 <= 2.6.4 Search vendor "Ruby-lang" for product "Ruby" and version " >= 2.6.0 <= 2.6.4" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 8.0 Search vendor "Debian" for product "Debian Linux" and version "8.0" | - |
Affected
| ||||||