CVE-2008-4109
Debian OpenSSH Signal Handler DoS
Description
A certain Debian patch for OpenSSH before 4.3p2-9etch3 on etch; before 4.6p1-1 on sid and lenny; and on other distributions such as SUSE uses functions that are not async-signal-safe in the signal handler for login timeouts, which allows remote attackers to cause a denial of service (connection slot exhaustion) via multiple login attempts. NOTE: this issue exists because of an incorrect fix for CVE-2006-5051.
INFO
Published Date :
Sept. 18, 2008, 3:04 p.m.
Last Modified :
July 1, 2024, 11:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.9
Exploitability Score :
10.0
Public PoC/Exploit Available at Github
CVE-2008-4109 has a 13 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-2008-4109.
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).
bulk scanning tool for 21 different CVE's for OpenSSH
Python
OpenSSH Vulnerabilities Scanner: Bulk Scanning Tool for 21 different OpenSSH CVEs.
Python
A Bash script to mitigate the CVE-2024-6387 vulnerability in OpenSSH by providing an option to upgrade to a secure version or apply a temporary workaround. This repository helps secure systems against potential remote code execution risks associated with affected OpenSSH versions.
Shell
None
Python
None
Fix for regreSSHion CVE-2024-6387 for Ubuntu and Debian
Shell
Bulk Scanning Tool for OpenSSH CVE-2024-6387, CVE-2024-6409, CVE-2006-5051, CVE-2008-4109, and 16 other CVEs.
Vulnerability remediation and mitigationCVE-2024-6387
Provides instructions for using the script to check if your OpenSSH installation is vulnerable to CVE-2024-6387
Shell
Scanning for open SSH connections (regardless of port) reporting hostname, openssh versions and vulnerabilities
Python
Recently, the OpenSSH maintainers released security updates to fix a critical vulnerability that could lead to unauthenticated remote code execution (RCE) with root privileges. This vulnerability, identified as CVE-2024-6387, resides in the OpenSSH server component (sshd), which is designed to listen for connections from client applications.
Python
Bulk Scanning Tool for OpenSSH CVE-2024-6387, CVE-2006-5051 , CVE-2008-4109 and others.
openssh security-audit security-tools ssh ssh-server
Python
None
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2008-4109 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2008-4109 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]
Jul. 01, 2024
Action Type Old Value New Value Added Reference MITRE http://www.openwall.com/lists/oss-security/2024/07/01/3 [No types assigned] -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Aug. 08, 2017
Action Type Old Value New Value Removed Reference http://xforce.iss.net/xforce/xfdb/45202 [No Types Assigned] Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/45202 [No Types Assigned] -
Initial Analysis by [email protected]
Sep. 18, 2008
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2008-4109 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-2008-4109
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
7.61 }} 3.13%
score
0.94186
percentile