CVE-2004-1653

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Summary

CVECVE-2004-1653
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2004-08-31 04:00:00 UTC
Updated2025-04-03 01:03:51 UTC
DescriptionThe 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.

Risk And Classification

Primary CVSS: v2.0 6.4 from [email protected]

AV:N/AC:L/Au:N/C:P/I:P/A:N

Problem Types: NVD-CWE-Other | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
None

AV:N/AC:L/Au:N/C:P/I:P/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Openbsd Openssh All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
OpenSSH Default Configuration May Be Unsafe When Used With Anonymous SSH Services - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 securitytracker.com
CVE-2004-1653 OpenSSH Vulnerability in NetApp Products | NetApp Product Security af854a3a-2127-422b-91ae-364da2661108 security.netapp.com
'SSHD / AnonCVS Nastyness' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
IBM X-Force Exchange af854a3a-2127-422b-91ae-364da2661108 exchange.xforce.ibmcloud.com
www.osvdb.org/9562 af854a3a-2127-422b-91ae-364da2661108 www.osvdb.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

OrganizationPublishedContributorStatement
Red Hat2009-11-25Tomas HogerPermitting 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.

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