CVE-2021-20046
SonicOS HTTP Content-Length Buffer Overflow
Description
A Stack-based buffer overflow in the SonicOS HTTP Content-Length response header allows a remote authenticated attacker to cause Denial of Service (DoS) and potentially results in code execution in the firewall. This vulnerability affected SonicOS Gen 5, Gen 6 and Gen 7 firmware versions.
INFO
Published Date :
Jan. 10, 2022, 2:10 p.m.
Last Modified :
Jan. 19, 2022, 1:44 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-20046 has a 1 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-2021-20046.
| URL | Resource |
|---|---|
| https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0027 | Vendor 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
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-20046 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-20046 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 -
Initial Analysis by [email protected]
Jan. 19, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0027 No Types Assigned https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2021-0027 Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* versions up to (including) 7.0.1-r146 OR cpe:2.3:h:sonicwall:nsa_2650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_2700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_3650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_3700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_4650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_4700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_5650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_6650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_6700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9250:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9450:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz270:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz270w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300p:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz350:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz350w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz370:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz370w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz400w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz470:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz470w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz500:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz500w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz570:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz570p:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz570w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz600:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz600p:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz670:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* versions up to (including) 7.0.1-5023-1349 OR cpe:2.3:h:sonicwall:nsv_10:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_100:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_1600:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_200:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_25:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_270:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_300:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_470:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_50:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_800:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsv_870:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* versions up to (including) 7.0.1-5018-r1715 OR cpe:2.3:h:sonicwall:nssp_12400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nssp_12800:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nssp_13700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nssp_15700:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* versions up to (including) 6.5.4.8-89n OR cpe:2.3:h:sonicwall:nsa_2650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_2700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_3650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_3700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_4650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_4700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_5650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_6650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_6700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9250:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9450:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:soho_250w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:supermassive_9200:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:supermassive_9400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:supermassive_9600:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:supermassive_9800:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz270:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz270w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300p:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz350:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz350w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz370:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz370w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz400w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz470:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz470w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz500:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz500w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz570:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz570p:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz570w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz600:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz600p:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz670:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* versions up to (including) 6.5.1.13-1n OR cpe:2.3:h:sonicwall:nssp_12400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nssp_12800:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:supermassive_9800:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* versions up to (including) 6.0.5.3-94o OR cpe:2.3:h:sonicwall:supermassive_e10200:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:supermassive_e10400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:supermassive_e10800:-:*:*:*:*:*:*:* Added CPE Configuration AND OR *cpe:2.3:o:sonicwall:sonicos:*:*:*:*:*:*:*:* versions from (including) 5.0.0.0 up to (including) 5.9.1.13 OR cpe:2.3:h:sonicwall:nsa_2650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_2700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_3650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_3700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_4650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_4700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_5650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_6650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_6700:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9250:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9450:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:nsa_9650:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:soho_250:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:soho_250w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz270:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz270w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300p:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz300w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz350:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz350w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz370:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz370w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz400:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz400w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz470:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz470w:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz500:-:*:*:*:*:*:*:* cpe:2.3:h:sonicwall:tz500w:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-20046 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-2021-20046
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.36 }} 0.01%
score
0.72197
percentile