CVE-2020-28020
Exim Integer Overflow to Buffer Overflow
Description
Exim 4 before 4.92 allows Integer Overflow to Buffer Overflow, in which an unauthenticated remote attacker can execute arbitrary code by leveraging the mishandling of continuation lines during header-length restriction.
INFO
Published Date :
May 6, 2021, 1:15 p.m.
Last Modified :
June 28, 2022, 2:11 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-28020 has a 2 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-2020-28020.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/07/25/1 | Mailing List Third Party Advisory |
| http://www.openwall.com/lists/oss-security/2021/08/03/1 | Mailing List Third Party Advisory |
| https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt | Patch 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).
Imoro Umar Farouq's report on Internal Network Penetration Testing
Shell
Automatic monitor github cve using Github Actions
Python
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-28020 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-28020 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 -
CWE Remap by [email protected]
Jun. 28, 2022
Action Type Old Value New Value Changed CWE CWE-120 CWE-190 CWE-190 -
Modified Analysis by [email protected]
Sep. 03, 2021
Action Type Old Value New Value Changed Reference Type http://www.openwall.com/lists/oss-security/2021/07/25/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/07/25/1 Mailing List, Third Party Advisory Changed Reference Type http://www.openwall.com/lists/oss-security/2021/08/03/1 No Types Assigned http://www.openwall.com/lists/oss-security/2021/08/03/1 Mailing List, Third Party Advisory Changed Reference Type https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt Third Party Advisory https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt Patch, Third Party Advisory Added CWE NIST CWE-120 Changed CPE Configuration OR *cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* versions from (including) 4.00 up to (excluding) 4.94.2 OR *cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* versions from (including) 4.00 up to (excluding) 4.92 -
CVE Modified by [email protected]
Aug. 03, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/08/03/1 [No Types Assigned] -
CVE Modified by [email protected]
Jul. 25, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/07/25/1 [No Types Assigned] -
Initial Analysis by [email protected]
May. 10, 2021
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://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt No Types Assigned https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28020-HSIZE.txt Third Party Advisory Added CWE NIST CWE-190 Added CPE Configuration OR *cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:* versions from (including) 4.00 up to (excluding) 4.94.2
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-28020 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-2020-28020
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
3.14 }} 0.18%
score
0.91171
percentile