National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2004-1653 Detail

Description

The default configuration for OpenSSH enables AllowTcpForwarding, which could allow remote authenticated users to perform a port bounce, when configured with an anonymous access program such as AnonCVS.

Source:  MITRE      Last Modified:  08/31/2004

Quick Info

CVE Dictionary Entry:
CVE-2004-1653
Original release date:
08/31/2004
Last revised:
07/10/2017
Source:
US-CERT/NIST

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score:
6.4 MEDIUM
Vector:
(AV:N/AC:L/Au:N/C:P/I:P/A:N) (legend)
Impact Subscore:
4.9
Exploitability Subscore:
10.0
CVSS Version 2 Metrics:
Access Vector:
Network exploitable
Access Complexity:
Low
Authentication:
Not required to exploit
Impact Type:
Allows unauthorized disclosure of information; Allows unauthorized modification

Vendor Statements (disclaimer)

Official Statement from Red Hat (11/25/2009)

Permitting TCP forwarding is the expected and known default configuration. If it is not desired, it can disabled using the AllowTcpForwarding option in the /etc/ssh/sshd_config configuration file. However, only disabling TCP forwarding does not improve security unless users are also denied shell access. For more information, see man sshd_config.

References to Advisories, Solutions, and Tools

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Hyperlink Resource Type Source Name
http://marc.info/?l=bugtraq&m=109413637313484&w=2 External Source BUGTRAQ 20040831 SSHD / AnonCVS Nastyness
http://securitytracker.com/id?1011143 External Source SECTRACK 1011143
https://exchange.xforce.ibmcloud.com/vulnerabilities/17213 External Source XF openssh-port-bounce(17213)

Technical Details

Vulnerability Type (View All)

Vulnerable software and versions Switch to CPE 2.2

Configuration 1
OR
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:*    versions up to (including) 3.9

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History 3 change records found - show changes