CVE-2004-1653 : The default configuration for OpenSSH enables AllowTcpForwarding, which could allow remote authenticated users to perfor

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.

Published 2004-08-31 04:00:00

Updated 2017-07-11 01:31:14

Source MITRE

View at NVD, CVE.org

Threat overview for CVE-2004-1653

Top countries where our scanners detected CVE-2004-1653

Top open port discovered on systems with this issue 22

IPs affected by CVE-2004-1653 42,861

Threat actors abusing to this issue? Yes

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Exploit prediction scoring system (EPSS) score for CVE-2004-1653

Probability of exploitation activity in the next 30 days: 1.04%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 82 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2004-1653

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.4	MEDIUM	AV:N/AC:L/Au:N/C:P/I:P/A:N	10.0	4.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: None

Vendor statements for CVE-2004-1653

Red Hat 2009-11-25

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 for CVE-2004-1653

Products affected by CVE-2004-1653