CVE-2020-3203
Cisco Catalyst 9800 Series Wireless Controllers SSL PKI Memory Leak Denial of Service Vulnerability
Description
A vulnerability in the locally significant certificate (LSC) provisioning feature of Cisco Catalyst 9800 Series Wireless Controllers that are running Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a memory leak that could lead to a denial of service (DoS) condition. The vulnerability is due to incorrect processing of certain public key infrastructure (PKI) packets. An attacker could exploit this vulnerability by sending crafted Secure Sockets Layer (SSL) packets to an affected device. A successful exploit could cause an affected device to continuously consume memory, which could result in a memory allocation failure that leads to a crash and causes a DoS condition.
INFO
Published Date :
June 3, 2020, 6:15 p.m.
Last Modified :
Oct. 19, 2021, 8:14 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
3.9
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-2020-3203.
| URL | Resource |
|---|---|
| https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ewlc-dos-TkuPVmZN | Patch 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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-3203 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-3203 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 -
Reanalysis by [email protected]
Oct. 19, 2021
Action Type Old Value New Value Removed CWE NIST CWE-400 Added CWE NIST CWE-401 -
Initial Analysis by [email protected]
Jun. 10, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:N/I:N/A:C) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H Changed Reference Type https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ewlc-dos-TkuPVmZN No Types Assigned https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iosxe-ewlc-dos-TkuPVmZN Patch, Vendor Advisory Added CWE NIST CWE-400 Added CPE Configuration AND OR *cpe:2.3:o:cisco:ios_xe:16.1.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.1.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.1.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.2.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.2.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.1a:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.4:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.5:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.5b:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.6:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.7:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.8:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.3.9:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.4.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.4.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.4.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.5.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.5.1a:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.5.1b:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.5.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.5.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.7.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.7.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.7.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.8.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.8.1a:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.8.1b:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.8.1c:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.8.1s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.8.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.8.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.1a:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.1b:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.1e:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.1s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.10.3:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1a:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1b:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1c:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.11.1s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1a:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1c:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.1s:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.2:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.2a:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.4:*:*:*:*:*:*:* *cpe:2.3:o:cisco:ios_xe:16.12.8:*:*:*:*:*:*:* OR cpe:2.3:h:cisco:catalyst_9800-40:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9800-80:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9800-cl:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9800-l:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9800-l-c:-:*:*:*:*:*:*:* cpe:2.3:h:cisco:catalyst_9800-l-f:-:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-3203 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-2020-3203
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.16 }} 0.00%
score
0.50780
percentile