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 :

Nov. 21, 2024, 12:50 a.m.

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.

Affected Products

The following products are affected by CVE-2008-4109 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Openbsd openssh
1 Debian linux

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).

None

Python

Updated: 2 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : Oct. 3, 2024, 3:15 p.m. This repo has been linked 22 different CVEs too.

bulk scanning tool for 21 different CVE's for OpenSSH

Python

Updated: 3 months, 3 weeks ago
1 stars 0 fork 0 watcher
Born at : Aug. 25, 2024, 6:28 a.m. This repo has been linked 22 different CVEs too.

OpenSSH Vulnerabilities Scanner: Bulk Scanning Tool for 21 different OpenSSH CVEs.

Python

Updated: 1 month, 2 weeks ago
5 stars 6 fork 6 watcher
Born at : Aug. 24, 2024, 10:56 p.m. This repo has been linked 22 different CVEs too.

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

Updated: 4 months ago
0 stars 0 fork 0 watcher
Born at : Aug. 20, 2024, 9:57 a.m. This repo has been linked 3 different CVEs too.

None

Python

Updated: 4 months ago
0 stars 1 fork 1 watcher
Born at : Aug. 19, 2024, 4:45 p.m. This repo has been linked 3 different CVEs too.

None

Updated: 4 months, 3 weeks ago
0 stars 0 fork 0 watcher
Born at : July 24, 2024, 10:25 a.m. This repo has been linked 3 different CVEs too.

Fix for regreSSHion CVE-2024-6387 for Ubuntu and Debian

Shell

Updated: 5 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 11, 2024, 11:22 p.m. This repo has been linked 3 different CVEs too.

Bulk Scanning Tool for OpenSSH CVE-2024-6387, CVE-2024-6409, CVE-2006-5051, CVE-2008-4109, and 16 other CVEs.

Updated: 5 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 11, 2024, 11:56 a.m. This repo has been linked 22 different CVEs too.

Vulnerability remediation and mitigationCVE-2024-6387

Updated: 4 months, 1 week ago
5 stars 0 fork 0 watcher
Born at : July 5, 2024, 9:29 p.m. This repo has been linked 3 different CVEs too.

Provides instructions for using the script to check if your OpenSSH installation is vulnerable to CVE-2024-6387

Shell

Updated: 5 months, 2 weeks ago
0 stars 0 fork 0 watcher
Born at : July 4, 2024, 1:15 p.m. This repo has been linked 3 different CVEs too.

Scanning for open SSH connections (regardless of port) reporting hostname, openssh versions and vulnerabilities

Python

Updated: 5 months, 2 weeks ago
2 stars 0 fork 0 watcher
Born at : July 2, 2024, 6:55 p.m. This repo has been linked 3 different CVEs too.

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

Updated: 1 month, 2 weeks ago
9 stars 1 fork 1 watcher
Born at : July 2, 2024, 2:51 a.m. This repo has been linked 3 different CVEs too.

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

Updated: 1 month, 2 weeks ago
26 stars 6 fork 6 watcher
Born at : July 1, 2024, 8:45 p.m. This repo has been linked 21 different CVEs too.

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.

  • New Jetpack Site
Vulnerabilità regreSSHion in OpenSSH server

07/02/2024 N010724 CERT-Yoroi informa che è stata resa nota una vulnerabilità critica in OpenSSH server (sshd) nei sistemi Linux basati su glibc che consente ad utenti malintenzionati di eseguire del ... Read more

Published Date: Jul 02, 2024 (5 months, 2 weeks ago)

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 af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=498678
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2008-10/msg00004.html
    Added Reference http://secunia.com/advisories/31885
    Added Reference http://secunia.com/advisories/32080
    Added Reference http://secunia.com/advisories/32181
    Added Reference http://www.debian.org/security/2008/dsa-1638
    Added Reference http://www.openwall.com/lists/oss-security/2024/07/01/3
    Added Reference http://www.securitytracker.com/id?1020891
    Added Reference http://www.ubuntu.com/usn/usn-649-1
    Added Reference https://exchange.xforce.ibmcloud.com/vulnerabilities/45202
  • 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
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
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

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability