Improper input validation in OpenSSH - #VU2088

Vulnerability identifier: #VU2088

CSH Severity: Low

CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: N/A

CWE-ID: CWE-264

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to bypass certain security restrictions.

The vulnerability exists due to an error in sshd, which can be used to bypass address-based access controls if the AllowUser directive is configured with invalid CIDR address ranges.

Successful exploitation of this vulnerability may allow a remote attacker to bypass implemented access control mechanisms and perform a further attacks against vulnerable system.

OpenSSH
SUSE Linux Enterprise Micro
cockpit-bridge-debuginfo
cockpit-bridge
cockpit-ws
cockpit-debugsource
cockpit
cockpit-debuginfo
cockpit-ws-debuginfo
cockpit-dashboard
cockpit-system

Install the latest version of OpenSSH 7.4.

cockpit-bridge-debuginfo - update to 195.12-150300.10.6.1
cockpit-bridge - update to 195.12-150300.10.6.1
cockpit-ws - update to 195.12-150300.10.6.1
cockpit-debugsource - update to 195.12-150300.10.6.1
cockpit - update to 195.12-150300.10.6.1
cockpit-debuginfo - update to 195.12-150300.10.6.1
cockpit-ws-debuginfo - update to 195.12-150300.10.6.1
cockpit-dashboard - update to 195.12-150300.10.6.1
cockpit-system - update to 195.12-150300.10.6.1

• https://www.openssh.com/txt/release-7.4

• Multiple vulnerabilities in OpenSSH
• SUSE update for cockpit