CVE-2021-33197
Go ReverseProxy HTTP Header Injection
Description
In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.
INFO
Published Date :
Aug. 2, 2021, 7:15 p.m.
Last Modified :
Sept. 14, 2022, 9:11 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2021-33197 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2021-33197.
| URL | Resource |
|---|---|
| https://groups.google.com/g/golang-announce | Third Party Advisory |
| https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI | Exploit Patch Third Party Advisory |
| https://security.gentoo.org/glsa/202208-02 | 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).
None
Dockerfile
None
Dockerfile
None
Dockerfile
Container image with malware and crypto miner for testing purposes
container crypto cryptominer dockerfile eicar image malware test xmrig
Dockerfile
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-33197 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-33197 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]
Sep. 14, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202208-02 No Types Assigned https://security.gentoo.org/glsa/202208-02 Third Party Advisory -
CVE Modified by [email protected]
Aug. 04, 2022
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202208-02 [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 11, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/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:L/A:N Changed Reference Type https://groups.google.com/g/golang-announce No Types Assigned https://groups.google.com/g/golang-announce Third Party Advisory Changed Reference Type https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI No Types Assigned https://groups.google.com/g/golang-announce/c/RgCMkAEQjSI Exploit, Patch, Third Party Advisory Added CWE NIST CWE-862 Added CPE Configuration OR *cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* versions up to (excluding) 1.15.13 *cpe:2.3:a:golang:go:*:*:*:*:*:*:*:* versions from (including) 1.16.0 up to (excluding) 1.16.5 -
CVE Modified by [email protected]
Aug. 08, 2021
Action Type Old Value New Value Changed Description Go before 1.15.12 and 1.16.x before 1.16.5 acts as an Unintended Proxy or Intermediary. In Go before 1.15.13 and 1.16.x before 1.16.5, some configurations of ReverseProxy (from net/http/httputil) result in a situation where an attacker is able to drop arbitrary headers.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-33197 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-2021-33197
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.14 }} 0.02%
score
0.48436
percentile