CVE-2020-8443
OSSEC-HIDS Heap-Based Buffer Overflow Vulnerability
Description
In OSSEC-HIDS 2.7 through 3.5.0, the server component responsible for log analysis (ossec-analysisd) is vulnerable to an off-by-one heap-based buffer overflow during the cleaning of crafted syslog msgs (received from authenticated remote agents and delivered to the analysisd processing queue by ossec-remoted).
INFO
Published Date :
Jan. 30, 2020, 1:15 a.m.
Last Modified :
April 26, 2022, 8 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
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-2020-8443.
| URL | Resource |
|---|---|
| https://github.com/ossec/ossec-hids/issues/1816 | Exploit Third Party Advisory |
| https://github.com/ossec/ossec-hids/issues/1821 | Third Party Advisory |
| https://security.gentoo.org/glsa/202007-33 | Third Party Advisory |
| https://www.ossec.net/ | 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-2020-8443 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-8443 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]
Apr. 26, 2022
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202007-33 No Types Assigned https://security.gentoo.org/glsa/202007-33 Third Party Advisory -
CWE Remap by [email protected]
Jul. 21, 2021
Action Type Old Value New Value Changed CWE CWE-787 CWE-193 CWE-787 -
CVE Modified by [email protected]
Jul. 27, 2020
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202007-33 [No Types Assigned] -
Initial Analysis by [email protected]
Feb. 03, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/ossec/ossec-hids/issues/1816 No Types Assigned https://github.com/ossec/ossec-hids/issues/1816 Exploit, Third Party Advisory Changed Reference Type https://github.com/ossec/ossec-hids/issues/1821 No Types Assigned https://github.com/ossec/ossec-hids/issues/1821 Third Party Advisory Changed Reference Type https://www.ossec.net/ No Types Assigned https://www.ossec.net/ Vendor Advisory Added CWE NIST CWE-787 Added CPE Configuration OR *cpe:2.3:a:ossec:ossec:*:*:*:*:*:*:*:* versions from (including) 2.7 up to (including) 3.5.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-8443 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-2020-8443
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
14.78 }} -3.43%
score
0.95894
percentile