Detections
Analytics
RHEL 2.1 : openssh (RHSA-2006:0698)
high Nessus Plugin ID 22474
Synopsis
The remote Red Hat host is missing one or more security updates.Description
Updated openssh packages that fix several security issues in sshd are now available for Red Hat Enterprise Linux 2.1.This update has been rated as having important security impact by the Red Hat Security Response Team.
OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. This package includes the core files necessary for both the OpenSSH client and server.
Mark Dowd discovered a signal handler race condition in the OpenSSH sshd server. A remote attacker could possibly leverage this flaw to cause a denial of service (crash). (CVE-2006-5051) The OpenSSH project believes the likelihood of successful exploitation leading to arbitrary code execution appears remote. However, the Red Hat Security Response Team have not yet been able to verify this claim due to lack of upstream vulnerability information. We are therefore including a fix for this flaw and have rated it important security severity in the event our continued investigation finds this issue to be exploitable.
Tavis Ormandy of the Google Security Team discovered a denial of service bug in the OpenSSH sshd server. A remote attacker can send a specially crafted SSH-1 request to the server causing sshd to consume a large quantity of CPU resources. (CVE-2006-4924)
An arbitrary command execution flaw was discovered in the way scp copies files locally. It is possible for a local attacker to create a file with a carefully crafted name that could execute arbitrary commands as the user running scp to copy files locally.
(CVE-2006-0225)
The SSH daemon, when restricting host access by numeric IP addresses and with VerifyReverseMapping disabled, allows remote attackers to bypass 'from=' and 'user@host' address restrictions by connecting to a host from a system whose reverse DNS hostname contains the numeric IP address. (CVE-2003-0386)
All users of openssh should upgrade to these updated packages, which contain backported patches that resolve these issues.
Solution
Update the affected packages.See Also
https://access.redhat.com/security/cve/cve-2003-0386
https://access.redhat.com/security/cve/cve-2006-0225
https://access.redhat.com/security/cve/cve-2006-4924
Plugin Details
Severity: High
ID: 22474
File Name: redhat-RHSA-2006-0698.nasl
Version: 1.26
Type: local
Agent: unix
Family: Red Hat Local Security Checks
Published: 9/29/2006
Updated: 1/14/2021
Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.7
CVSS v2
Risk Factor: High
Base Score: 9.3
Temporal Score: 7.3
Vector: CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C
Vulnerability Information
CPE: p-cpe:/a:redhat:enterprise_linux:openssh-askpass, p-cpe:/a:redhat:enterprise_linux:openssh, p-cpe:/a:redhat:enterprise_linux:openssh-server, p-cpe:/a:redhat:enterprise_linux:openssh-askpass-gnome, cpe:/o:redhat:enterprise_linux:2.1, p-cpe:/a:redhat:enterprise_linux:openssh-clients
Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu
Exploit Available: true
Exploit Ease: Exploits are available
Patch Publication Date: 9/28/2006
Vulnerability Publication Date: 7/2/2003
Reference Information
CVE: CVE-2003-0386, CVE-2006-0225, CVE-2006-4924, CVE-2006-5051