CVE-2013-2028
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...
- Published
- Jul 18, 2013
- Updated
- Aug 6, 2024
- Assigning CNA
- redhat
- Evidence observed
- May 17, 2013
Primary CVSS
nvd · CVSS 2.0
AV:N/AC:L/Au:N/C:P/I:P/A:PHigh · next 30 days
- Percentile
- 99.8%
- Model date
- Oct 13, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
modules/exploits/linux/http/nginx_chunked_size.rb
Metasploit Framework modulesDeclared conditions
- platform: Unix($.exploit_linux/http/nginx_chunked_size.platform)
- verification: check_declared($.exploit_linux/http/nginx_chunked_size.check)
- nginxpwnResearch
Exploitation Training -- CVE-2013-2028: Nginx Stack Based Buffer Overflow
Responsible use
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