Executive Summary
| Summary | |
|---|---|
| Title | openssh security update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2006:0738 | First vendor Publication | 2006-11-15 |
| Vendor | RedHat | Last vendor Modification | 2006-11-15 |
| Severity (Vendor) | Low | Revision | 01 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 7.5 | Attack Range | Network |
| Cvss Impact Score | 6.4 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated openssh packages that fix an authentication flaw are now available for Red Hat Enterprise Linux 3 and 4. This update has been rated as having low security impact by the Red Hat Security Response Team. 2. Relevant releases/architectures: Red Hat Enterprise Linux AS version 3 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Desktop version 3 - i386, x86_64 Red Hat Enterprise Linux ES version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 3 - i386, ia64, x86_64 Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop version 4 - i386, x86_64 Red Hat Enterprise Linux ES version 4 - i386, ia64, x86_64 Red Hat Enterprise Linux WS version 4 - i386, ia64, x86_64 3. Problem description: OpenSSH is OpenBSD's SSH (Secure SHell) protocol implementation. This package includes the core files necessary for both the OpenSSH client and server. An authentication flaw was found in OpenSSH's privilege separation monitor. If it ever becomes possible to alter the behavior of the unprivileged process when OpenSSH is using privilege separation, an attacker may then be able to login without possessing proper credentials. (CVE-2006-5794) Please note that this flaw by itself poses no direct threat to OpenSSH users. Without another security flaw that could allow an attacker to alter the behavior of OpenSSH's unprivileged process, this flaw cannot be exploited. There are currently no known flaws to exploit this behavior. However, we have decided to issue this erratum to fix this flaw to reduce the security impact if an unprivileged process flaw is ever found. Users of openssh should upgrade to these updated packages, which contain a backported patch to resolve this issue. 4. Solution: Before applying this update, make sure all previously released errata relevant to your system have been applied. This update is available via Red Hat Network. To use Red Hat Network, launch the Red Hat Update Agent with the following command: up2date This will start an interactive process that will result in the appropriate RPMs being upgraded on your system. 5. Bug IDs fixed (http://bugzilla.redhat.com/): 214640 - CVE-2006-5794 OpenSSH privilege separation flaw |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2006-0738.html |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:11840 | |||
| Oval ID: | oval:org.mitre.oval:def:11840 | ||
| Title: | Unspecified vulnerability in the sshd Privilege Separation Monitor in OpenSSH before 4.5 causes weaker verification that authentication has been successful, which might allow attackers to bypass authentication. NOTE: as of 20061108, it is believed that this issue is only exploitable by leveraging vulnerabilities in the unprivileged process, which are not known to exist. | ||
| Description: | Unspecified vulnerability in the sshd Privilege Separation Monitor in OpenSSH before 4.5 causes weaker verification that authentication has been successful, which might allow attackers to bypass authentication. NOTE: as of 20061108, it is believed that this issue is only exploitable by leveraging vulnerabilities in the unprivileged process, which are not known to exist. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2006-5794 | Version: | 5 |
| Platform(s): | Red Hat Enterprise Linux 3 CentOS Linux 3 Red Hat Enterprise Linux 4 CentOS Linux 4 Oracle Linux 4 | Product(s): | |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2009-10-10 | Name : SLES9: Security update for OpenSSH File : nvt/sles9p5009668.nasl |
| 2009-02-27 | Name : Fedora Update for openssh FEDORA-2007-395 File : nvt/gb_fedora_2007_395_openssh_fc5.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 30232 | OpenSSH Privilege Separation Monitor Weakness OpenSSH and related programs contain a flaw that may allow an attacker to bypass authentication. Due to an unspecified vulnerability in the sshd Privilege Separation Monitor, authentication verification may be considerably weaker than intended allowing an attacker to bypass authentication. No further details have been provided. Note: It is believed that this issue is only exploitable by leveraging vulnerabilities in the unprivileged process, which are not known to exist as of 2006-11-08. |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2006-0738.nasl - Type : ACT_GATHER_INFO |
| 2011-10-04 | Name : The remote SSH service is affected by multiple vulnerabilities. File : openssh_45.nasl - Type : ACT_GATHER_INFO |
| 2011-08-29 | Name : The SSH service running on the remote host has an information disclosure vuln... File : sunssh_plaintext_recovery.nasl - Type : ACT_GATHER_INFO |
| 2009-04-23 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2006-0738.nasl - Type : ACT_GATHER_INFO |
| 2007-12-13 | Name : The remote SuSE 10 host is missing a security-related patch. File : suse_openssh-2257.nasl - Type : ACT_GATHER_INFO |
| 2007-10-17 | Name : The remote openSUSE host is missing a security update. File : suse_openssh-2256.nasl - Type : ACT_GATHER_INFO |
| 2007-04-05 | Name : The remote Fedora Core host is missing a security update. File : fedora_2007-395.nasl - Type : ACT_GATHER_INFO |
| 2007-02-18 | Name : The remote Mandrake Linux host is missing one or more security updates. File : mandrake_MDKSA-2006-204.nasl - Type : ACT_GATHER_INFO |
| 2006-11-20 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2006-0738.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:50:19 |
|
