CVE-2017-16944
Exim SMTP Denial of Service Vulnerability
Description
The receive_msg function in receive.c in the SMTP daemon in Exim 4.88 and 4.89 allows remote attackers to cause a denial of service (infinite loop and stack exhaustion) via vectors involving BDAT commands and an improper check for a '.' character signifying the end of the content, related to the bdat_getc function.
INFO
Published Date :
Nov. 25, 2017, 5:29 p.m.
Last Modified :
May 4, 2021, 6:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2017-16944 has a 6 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-2017-16944.
| URL | Resource |
|---|---|
| http://openwall.com/lists/oss-security/2017/11/25/1 | Mailing List |
| http://openwall.com/lists/oss-security/2017/11/25/2 | Mailing List |
| http://openwall.com/lists/oss-security/2017/11/25/3 | Mailing List |
| http://www.openwall.com/lists/oss-security/2021/05/04/7 | |
| http://www.securitytracker.com/id/1039873 | Third Party Advisory VDB Entry |
| https://bugs.exim.org/show_bug.cgi?id=2201 | Exploit Issue Tracking |
| https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html | Mailing List |
| https://www.debian.org/security/2017/dsa-4053 | Third Party Advisory |
| https://www.exploit-db.com/exploits/43184/ | Third Party Advisory VDB Entry |
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
Exim examples with Mayhem
Dockerfile Shell Python
None
None
None
Python
✍️ A curated list of CVE PoCs.
awesome cve poc
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2017-16944 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2017-16944 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 -
CVE Modified by [email protected]
May. 04, 2021
Action Type Old Value New Value Added Reference http://www.openwall.com/lists/oss-security/2021/05/04/7 [No Types Assigned] -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-400 CWE-835 -
Initial Analysis by [email protected]
Dec. 07, 2017
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:N/A:P) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type http://www.securitytracker.com/id/1039873 No Types Assigned http://www.securitytracker.com/id/1039873 Third Party Advisory, VDB Entry Changed Reference Type https://www.debian.org/security/2017/dsa-4053 No Types Assigned https://www.debian.org/security/2017/dsa-4053 Third Party Advisory Changed Reference Type https://www.exploit-db.com/exploits/43184/ No Types Assigned https://www.exploit-db.com/exploits/43184/ Third Party Advisory, VDB Entry Changed Reference Type http://openwall.com/lists/oss-security/2017/11/25/3 No Types Assigned http://openwall.com/lists/oss-security/2017/11/25/3 Mailing List Changed Reference Type http://openwall.com/lists/oss-security/2017/11/25/1 No Types Assigned http://openwall.com/lists/oss-security/2017/11/25/1 Mailing List Changed Reference Type https://bugs.exim.org/show_bug.cgi?id=2201 No Types Assigned https://bugs.exim.org/show_bug.cgi?id=2201 Exploit, Issue Tracking Changed Reference Type http://openwall.com/lists/oss-security/2017/11/25/2 No Types Assigned http://openwall.com/lists/oss-security/2017/11/25/2 Mailing List Changed Reference Type https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html No Types Assigned https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html Mailing List Added CWE CWE-400 Added CPE Configuration OR *cpe:2.3:a:exim:exim:4.88:*:*:*:*:*:*:* *cpe:2.3:a:exim:exim:4.89:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Dec. 02, 2017
Action Type Old Value New Value Added Reference https://www.debian.org/security/2017/dsa-4053 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 30, 2017
Action Type Old Value New Value Added Reference https://www.exploit-db.com/exploits/43184/ [No Types Assigned] -
CVE Modified by [email protected]
Nov. 29, 2017
Action Type Old Value New Value Added Reference http://www.securitytracker.com/id/1039873 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 27, 2017
Action Type Old Value New Value Added Reference http://openwall.com/lists/oss-security/2017/11/25/3 [No Types Assigned] Added Reference http://openwall.com/lists/oss-security/2017/11/25/2 [No Types Assigned] Added Reference http://openwall.com/lists/oss-security/2017/11/25/1 [No Types Assigned] -
CVE Modified by [email protected]
Nov. 26, 2017
Action Type Old Value New Value Added Reference https://lists.exim.org/lurker/message/20171125.034842.d1d75cac.en.html [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2017-16944 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-2017-16944
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
85.06 }} -2.68%
score
0.98428
percentile