CVE-2020-24916
Debian Security Advisory 4773-1
Severity Score
9.8
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
4
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
CGI implementation in Yaws web server versions 1.81 to 2.0.7 is vulnerable to OS command injection.
la implementación de CGI en el servidor web Yaws. (CVE-2020-24916) Una implementación de CGI en el servidor web Yaws versiones 1.81 hasta 2.0.7, es vulnerable a una inyección de comandos del Sistema Operativo.
It was discovered that Yaws did not properly sanitize XML input. A remote attacker could use this vulnerability to execute an XML External Entity injection attack. It was discovered that Yaws mishandled certain input when running CGI scripts. A remote attacker could use this vulnerability to execute arbitrary commands.
*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
- 2020-08-28 CVE Reserved
- 2020-09-08 CVE Published
- 2020-09-08 First Exploit
- 2024-08-04 CVE Updated
- 2025-03-30 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-78: Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
CAPEC
References (8)
| URL | Tag | Source |
|---|---|---|
| https://lists.debian.org/debian-lts-announce/2020/09/msg00022.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://packetstorm.news/files/id/159106 | 2020-09-08 | |
| https://github.com/vulnbe/poc-yaws-cgi-shell-injection | 2024-08-04 | |
| https://packetstormsecurity.com/files/159106/Yaws-2.0.7-XML-Injection-Command-Injection.html | 2024-08-04 | |
| https://vuln.be/post/yaws-xxe-and-shell-injections | 2024-08-04 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/erlyaws/yaws/commits/master | 2022-12-06 |
| URL | Date | SRC |
|---|---|---|
| https://usn.ubuntu.com/4569-1 | 2022-12-06 | |
| https://www.debian.org/security/2020/dsa-4773 | 2022-12-06 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Yaws Search vendor "Yaws" | Yaws Search vendor "Yaws" for product "Yaws" | >= 1.81 <= 2.0.7 Search vendor "Yaws" for product "Yaws" and version " >= 1.81 <= 2.0.7" | - |
Affected
| ||||||
| Canonical Search vendor "Canonical" | Ubuntu Linux Search vendor "Canonical" for product "Ubuntu Linux" | 18.04 Search vendor "Canonical" for product "Ubuntu Linux" and version "18.04" | lts |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
| ||||||