CVE-2013-2028

Nginx 1.3.9 < 1.4.0 - Denial of Service (PoC)

Severity Score

9.8

*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

The ngx_http_parse_chunked function in http/ngx_http_parse.c in nginx 1.3.9 through 1.4.0 allows remote attackers to cause a denial of service (crash) and execute arbitrary code via a chunked Transfer-Encoding request with a large chunk size, which triggers an integer signedness error and a stack-based buffer overflow.

La función ngx_http_parse_chunked en http/ngx_http_parse.c en nginx v1.3.9 hasta v1.4.0 permite a atacantes remotos causar una denegación de servicio (caída) y ejecutar código arbitrario mediante una solicitud Transfer-Encoding (chunked) con un tamaño de chunk de gran longitud, lo que genera un error de "integer signedness" y un desbordamiento de búfer.

Multiple vulnerabilities have been found in nginx, the worst of which may allow execution of arbitrary code. Versions less than 1.4.1-r2 are affected.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2013-02-19 CVE Reserved
2013-05-08 CVE Published
2013-05-17 First Exploit
2024-08-06 CVE Updated
2025-07-01 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-787: Out-of-bounds Write

CAPEC

References (26)

URL	Tag	Source
http://secunia.com/advisories/55181	Third Party Advisory
http://www.osvdb.org/93037	Broken Link
http://www.securityfocus.com/bid/59699	Third Party Advisory
http://www.vnsecurity.net/2013/05/analysis-of-nginx-cve-2013-2028	Broken Link
http://nginx.org/en/security_advisories.html

URL	Date	SRC
https://packetstorm.news/files/id/125758	2014-03-18
https://packetstorm.news/files/id/122477	2013-07-19
https://packetstorm.news/files/id/121712	2013-05-23
https://packetstorm.news/files/id/121675	2013-05-17
https://www.exploit-db.com/exploits/25499	2013-05-17
https://www.exploit-db.com/exploits/25775	2013-05-28
https://www.exploit-db.com/exploits/26737	2013-07-11
https://www.exploit-db.com/exploits/32277	2014-03-15
https://github.com/m4drat/CVE-2013-2028-Exploit	2020-06-27
https://github.com/Sunqiz/CVE-2013-2028-reproduction	2022-08-15
https://github.com/tachibana51/CVE-2013-2028-x64-bypass-ssp-and-pie-PoC	2019-08-03
https://github.com/danghvu/nginx-1.4.0	2024-08-12
https://github.com/kitctf/nginxpwn	2024-11-08
https://github.com/jptr218/nginxhack	2021-07-27
https://github.com/xiw1ll/CVE-2013-2028_Checker	2024-07-23
http://packetstormsecurity.com/files/121675/Nginx-1.3.9-1.4.0-Denial-Of-Service.html	2024-08-06

URL	Date	SRC
http://mailman.nginx.org/pipermail/nginx-announce/2013/000112.html	2021-11-10
http://nginx.org/download/patch.2013.chunked.txt	2021-11-10
https://github.com/rapid7/metasploit-framework/pull/1834	2021-11-10

URL	Date	SRC
http://lists.fedoraproject.org/pipermail/package-announce/2013-May/105176.html	2021-11-10
http://security.gentoo.org/glsa/glsa-201310-04.xml	2021-11-10

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
F5 Search vendor "F5"		Nginx Search vendor "F5" for product "Nginx"				>= 1.3.9 <= 1.4.0 Search vendor "F5" for product "Nginx" and version " >= 1.3.9 <= 1.4.0"		-		Affected
Fedoraproject Search vendor "Fedoraproject"		Fedora Search vendor "Fedoraproject" for product "Fedora"				19 Search vendor "Fedoraproject" for product "Fedora" and version "19"		-		Affected