7.5
HIGH
CVE-2020-11724
OpenResty HTTP Request Smuggling Vulnerability
Description

An issue was discovered in OpenResty before 1.15.8.4. ngx_http_lua_subrequest.c allows HTTP request smuggling, as demonstrated by the ngx.location.capture API.

INFO

Published Date :

April 12, 2020, 9:15 p.m.

Last Modified :

Jan. 29, 2021, 4:33 p.m.

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

3.9
Public PoC/Exploit Available at Github

CVE-2020-11724 has a 1 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-11724 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Debian debian_linux
1 Openresty openresty
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-11724.

URL Resource
https://github.com/openresty/lua-nginx-module/commit/9ab38e8ee35fc08a57636b1b6190dca70b0076fa Patch Third Party Advisory
https://github.com/openresty/openresty/blob/4e8b4c395f842a078e429c80dd063b2323999957/patches/ngx_http_lua-0.10.15-fix_location_capture_content_length_chunked.patch Patch Third Party Advisory
https://lists.debian.org/debian-lts-announce/2020/07/msg00014.html Mailing List Third Party Advisory
https://security.netapp.com/advisory/ntap-20210129-0002/ Third Party Advisory
https://www.debian.org/security/2020/dsa-4750 Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

An HTTP client specifically developed for security researchers

http proxy smuggling tls

Shell Rust

Updated: 2 months, 2 weeks ago
17 stars 2 fork 2 watcher
Born at : May 13, 2024, 12:12 p.m. This repo has been linked 2 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-11724 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-11724 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Modified Analysis by [email protected]

    Jan. 29, 2021

    Action Type Old Value New Value
    Changed Reference Type https://github.com/openresty/lua-nginx-module/commit/9ab38e8ee35fc08a57636b1b6190dca70b0076fa No Types Assigned https://github.com/openresty/lua-nginx-module/commit/9ab38e8ee35fc08a57636b1b6190dca70b0076fa Patch, Third Party Advisory
    Changed Reference Type https://lists.debian.org/debian-lts-announce/2020/07/msg00014.html No Types Assigned https://lists.debian.org/debian-lts-announce/2020/07/msg00014.html Mailing List, Third Party Advisory
    Changed Reference Type https://security.netapp.com/advisory/ntap-20210129-0002/ No Types Assigned https://security.netapp.com/advisory/ntap-20210129-0002/ Third Party Advisory
    Changed Reference Type https://www.debian.org/security/2020/dsa-4750 No Types Assigned https://www.debian.org/security/2020/dsa-4750 Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* *cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • CVE Modified by [email protected]

    Jan. 29, 2021

    Action Type Old Value New Value
    Added Reference https://security.netapp.com/advisory/ntap-20210129-0002/ [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 27, 2020

    Action Type Old Value New Value
    Added Reference https://www.debian.org/security/2020/dsa-4750 [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 20, 2020

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2020/07/msg00014.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jul. 13, 2020

    Action Type Old Value New Value
    Added Reference https://github.com/openresty/lua-nginx-module/commit/9ab38e8ee35fc08a57636b1b6190dca70b0076fa [No Types Assigned]
  • Initial Analysis by [email protected]

    Apr. 13, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:P/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
    Changed Reference Type https://github.com/openresty/openresty/blob/4e8b4c395f842a078e429c80dd063b2323999957/patches/ngx_http_lua-0.10.15-fix_location_capture_content_length_chunked.patch No Types Assigned https://github.com/openresty/openresty/blob/4e8b4c395f842a078e429c80dd063b2323999957/patches/ngx_http_lua-0.10.15-fix_location_capture_content_length_chunked.patch Patch, Third Party Advisory
    Added CWE NIST CWE-444
    Added CPE Configuration OR *cpe:2.3:a:openresty:openresty:*:*:*:*:*:*:*:* versions up to (excluding) 1.15.8.4
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-11724 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-11724 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.41 }} -0.17%

score

0.74161

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability