Executive Summary

Informations
Name CVE-2003-0190 First vendor Publication 2003-05-12
Vendor Cve Last vendor Modification 2024-02-15

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
 
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:P/I:N/A:N)
Cvss Base Score 5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
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Detail

OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2003-0190

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-203 Information Exposure Through Discrepancy

OVAL Definitions

Definition Id: oval:org.mitre.oval:def:445
 
Oval ID: oval:org.mitre.oval:def:445
Title: OpenSSH Indirect User Disclosure Vulnerability
Description: OpenSSH-portable (OpenSSH) 3.6.1p1 and earlier with PAM support enabled immediately sends an error message when a user does not exist, which allows remote attackers to determine valid usernames via a timing attack.
Family: unix Class: vulnerability
Reference(s): CVE-2003-0190
Version: 4
Platform(s): Red Hat Linux 9
Product(s): OpenSSH
Definition Synopsis:

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 63
Application 2

ExploitDB Exploits

id Description
2007-02-13 Portable OpenSSH <= 3.6.1p-PAM / 4.1-SUSE Timing Attack Exploit

OpenVAS Exploits

Date Description
2009-10-10 Name : SLES9: Security update for OpenSSH
File : nvt/sles9p5019997.nasl

Open Source Vulnerability Database (OSVDB)

Id Description
2140 OpenSSH w/ PAM Username Validity Timing Attack

OpenSSH portable contains a flaw that may lead to an unauthorized information disclosure. The issue is triggered when PAM is enabled; remote users can determine which usernames are valid by looking at the relative time it takes to receive an error response from the system. When PAM is enabled, OpenSSH returns an error almost immediately if a user does not exist, and is slower if the user exists but the password is incorrect. This disparity in timing will disclose when the attacker hits upon a valid username, making brute-force username/password guessing easier and resulting in a loss of confidentiality.

Nessus® Vulnerability Scanner

Date Description
2011-08-29 Name : The SSH service running on the remote host has an information disclosure vuln...
File : sunssh_plaintext_recovery.nasl - Type : ACT_GATHER_INFO
2006-01-15 Name : The remote Ubuntu host is missing one or more security-related patches.
File : ubuntu_USN-34-1.nasl - Type : ACT_GATHER_INFO
2004-07-06 Name : The remote Red Hat host is missing one or more security updates.
File : redhat-RHSA-2003-224.nasl - Type : ACT_GATHER_INFO
2003-05-06 Name : It is possible to enumerate valid users on the remote host.
File : openssh_pam_timing.nasl - Type : ACT_GATHER_INFO

Sources (Detail)

Source Url
BID http://www.securityfocus.com/bid/7467
BUGTRAQ http://marc.info/?l=bugtraq&m=105172058404810&w=2
http://marc.info/?l=bugtraq&m=106018677302607&w=2
CONFIRM https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
FULLDISC http://lists.grok.org.uk/pipermail/full-disclosure/2003-April/004815.html
MISC http://lab.mediaservice.net/advisory/2003-01-openssh.txt
OVAL https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.ova...
REDHAT http://www.redhat.com/support/errata/RHSA-2003-222.html
http://www.redhat.com/support/errata/RHSA-2003-224.html
TURBO http://www.turbolinux.com/security/TLSA-2003-31.txt

Alert History

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