Executive Summary
| Summary | |
|---|---|
| Title | krb5 security update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2010:0926 | First vendor Publication | 2010-11-30 |
| Vendor | RedHat | Last vendor Modification | 2010-11-30 |
| Severity (Vendor) | Moderate | 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:H/Au:N/C:N/I:P/A:N) | |||
|---|---|---|---|
| Cvss Base Score | 2.6 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | High |
| Cvss Expoit Score | 4.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated krb5 packages that fix multiple security issues are now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate security impact. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available from the CVE link in the References section. 2. Relevant releases/architectures: RHEL Desktop Workstation (v. 5 client) - i386, x86_64 Red Hat Enterprise Linux (v. 5 server) - i386, ia64, ppc, s390x, x86_64 Red Hat Enterprise Linux AS version 4 - i386, ia64, ppc, s390, s390x, x86_64 Red Hat Enterprise Linux Desktop (v. 5 client) - i386, 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. Description: Kerberos is a network authentication system which allows clients and servers to authenticate to each other using symmetric encryption and a trusted third party, the Key Distribution Center (KDC). Multiple checksum validation flaws were discovered in the MIT Kerberos implementation. A remote attacker could use these flaws to tamper with certain Kerberos protocol packets and, possibly, bypass authentication mechanisms in certain configurations using Single-use Authentication Mechanisms. (CVE-2010-1323) Red Hat would like to thank the MIT Kerberos Team for reporting these issues. All krb5 users should upgrade to these updated packages, which contain a backported patch to correct these issues. After installing the updated packages, the krb5kdc daemon will be restarted automatically. 4. Solution: Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 648734 - CVE-2010-1323 krb5: incorrect acceptance of certain checksums (MITKRB5-SA-2010-007) |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2010-0926.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-310 | Cryptographic Issues |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:12121 | |||
| Oval ID: | oval:org.mitre.oval:def:12121 | ||
| Title: | HP-UX Running Kerberos, Remote Unauthorized Modification. | ||
| Description: | MIT Kerberos 5 (aka krb5) 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center (KDC), or forge a KRB-SAFE message via certain checksums that (1) are unkeyed or (2) use RC4 keys. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2010-1323 | Version: | 12 |
| Platform(s): | HP-UX 11 | Product(s): | |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:12131 | |||
| Oval ID: | oval:org.mitre.oval:def:12131 | ||
| Title: | DSA-2129-1 krb5 -- checksum verification weakness | ||
| Description: | A vulnerability has been found in krb5, the MIT implementation of Kerberos. MIT krb5 clients incorrectly accept an unkeyed checksums in the SAM-2 preauthentication challenge: An unauthenticated remote attacker could alter a SAM-2 challenge, affecting the prompt text seen by the user or the kind of response sent to the KDC. Under some circumstances, this can negate the incremental security benefit of using a single-use authentication mechanism token. MIT krb5 incorrectly accepts RFC 3961 key-derivation checksums using RC4 keys when verifying KRB-SAFE messages: An unauthenticated remote attacker has a 1/256 chance of forging KRB-SAFE messages in an application protocol if the targeted pre-existing session uses an RC4 session key. Few application protocols use KRB-SAFE messages. The Common Vulnerabilities and Exposures project has assigned CVE-2010-1323 to these issues. For the stable distribution, these problems have been fixed in version 1.6.dfsg.4~beta1-5lenny6. The builds for the mips architecture are not included in this advisory. They will be released as soon as they are available. For the testing distribution and the unstable distribution, these problem have been fixed in version 1.8.3+dfsg-3. We recommend that you upgrade your krb5 packages. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2129-1 CVE-2010-1323 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 5.0 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:19888 | |||
| Oval ID: | oval:org.mitre.oval:def:19888 | ||
| Title: | VMware ESXi and ESX Denial of Service and third party updates for Likewise components and ESX Service Console | ||
| Description: | MIT Kerberos 5 (aka krb5) 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center (KDC), or forge a KRB-SAFE message via certain checksums that (1) are unkeyed or (2) use RC4 keys. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2010-1323 | Version: | 4 |
| Platform(s): | VMWare ESX Server 4.1 | Product(s): | |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:20132 | |||
| Oval ID: | oval:org.mitre.oval:def:20132 | ||
| Title: | VMware ESX third party updates for Service Console packages glibc and dhcp | ||
| Description: | MIT Kerberos 5 (aka krb5) 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center (KDC), or forge a KRB-SAFE message via certain checksums that (1) are unkeyed or (2) use RC4 keys. | ||
| Family: | unix | Class: | vulnerability |
| Reference(s): | CVE-2010-1323 | Version: | 4 |
| Platform(s): | VMWare ESX Server 4.1 VMWare ESX Server 4.0 | Product(s): | |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:22250 | |||
| Oval ID: | oval:org.mitre.oval:def:22250 | ||
| Title: | RHSA-2010:0926: krb5 security update (Moderate) | ||
| Description: | MIT Kerberos 5 (aka krb5) 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center (KDC), or forge a KRB-SAFE message via certain checksums that (1) are unkeyed or (2) use RC4 keys. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2010:0926-01 CESA-2010:0926 CVE-2010-1323 | Version: | 4 |
| Platform(s): | Red Hat Enterprise Linux 5 CentOS Linux 5 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:22784 | |||
| Oval ID: | oval:org.mitre.oval:def:22784 | ||
| Title: | ELSA-2010:0926: krb5 security update (Moderate) | ||
| Description: | MIT Kerberos 5 (aka krb5) 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determine the acceptability of checksums, which might allow remote attackers to modify user-visible prompt text, modify a response to a Key Distribution Center (KDC), or forge a KRB-SAFE message via certain checksums that (1) are unkeyed or (2) use RC4 keys. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2010:0926-01 CVE-2010-1323 | Version: | 6 |
| Platform(s): | Oracle Linux 5 | Product(s): | krb5 |
| Definition Synopsis: | |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-03-16 | Name : VMSA-2011-0012.3 VMware ESXi and ESX updates to third party libraries and ESX... File : nvt/gb_VMSA-2011-0012.nasl |
| 2012-03-15 | Name : VMSA-2011-0007 VMware ESXi and ESX Denial of Service and third party updates ... File : nvt/gb_VMSA-2011-0007.nasl |
| 2012-02-12 | Name : Gentoo Security Advisory GLSA 201201-13 (mit-krb5) File : nvt/glsa_201201_13.nasl |
| 2011-11-18 | Name : Fedora Update for krb5 FEDORA-2011-14650 File : nvt/gb_fedora_2011_14650_krb5_fc14.nasl |
| 2011-08-26 | Name : Mac OS X v10.6.6 Multiple Vulnerabilities (2011-001) File : nvt/secpod_macosx_su11-001.nasl |
| 2011-08-09 | Name : CentOS Update for krb5-devel CESA-2010:0926 centos5 i386 File : nvt/gb_CESA-2010_0926_krb5-devel_centos5_i386.nasl |
| 2011-05-05 | Name : Fedora Update for krb5 FEDORA-2011-5343 File : nvt/gb_fedora_2011_5343_krb5_fc13.nasl |
| 2011-05-05 | Name : Fedora Update for krb5 FEDORA-2011-5345 File : nvt/gb_fedora_2011_5345_krb5_fc14.nasl |
| 2011-03-25 | Name : Fedora Update for krb5 FEDORA-2011-3462 File : nvt/gb_fedora_2011_3462_krb5_fc14.nasl |
| 2011-03-25 | Name : Fedora Update for krb5 FEDORA-2011-3464 File : nvt/gb_fedora_2011_3464_krb5_fc13.nasl |
| 2011-02-18 | Name : Fedora Update for krb5 FEDORA-2011-1210 File : nvt/gb_fedora_2011_1210_krb5_fc13.nasl |
| 2011-02-18 | Name : Fedora Update for krb5 FEDORA-2011-1225 File : nvt/gb_fedora_2011_1225_krb5_fc14.nasl |
| 2011-01-24 | Name : FreeBSD Ports: krb5 File : nvt/freebsd_krb59.nasl |
| 2011-01-21 | Name : HP-UX Update for Kerberos HPSBUX02623 File : nvt/gb_hp_ux_HPSBUX02623.nasl |
| 2010-12-23 | Name : Fedora Update for krb5 FEDORA-2010-18409 File : nvt/gb_fedora_2010_18409_krb5_fc14.nasl |
| 2010-12-23 | Name : Fedora Update for krb5 FEDORA-2010-18425 File : nvt/gb_fedora_2010_18425_krb5_fc13.nasl |
| 2010-12-23 | Name : Ubuntu Update for krb5 vulnerabilities USN-1030-1 File : nvt/gb_ubuntu_USN_1030_1.nasl |
| 2010-12-09 | Name : RedHat Update for krb5 RHSA-2010:0926-01 File : nvt/gb_RHSA-2010_0926-01_krb5.nasl |
| 2010-12-09 | Name : Mandriva Update for krb5 MDVSA-2010:245 (krb5) File : nvt/gb_mandriva_MDVSA_2010_245.nasl |
| 2010-12-09 | Name : Mandriva Update for krb5 MDVSA-2010:246 (krb5) File : nvt/gb_mandriva_MDVSA_2010_246.nasl |
| 2010-12-09 | Name : CentOS Update for krb5-devel CESA-2010:0926 centos4 i386 File : nvt/gb_CESA-2010_0926_krb5-devel_centos4_i386.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 71972 | Oracle Solaris Kerberos Checksum Acceptability Weakness KDC / KRB-SAFE Messag... Oracle Solaris contains a flaw in the Kerberos component related to the acceptability of checksums. This may allow a remote attacker to modify user-visible prompt text, modify a reponse to a KDC, or forge a KRB-SAFE message via unkeyed checksums or the use of RC4 keys. |
| 69610 | MIT Kerberos 5 (krb5) Checksum Acceptability Weakness KDC / KRB-SAFE Message ... MIT Kerberos 5 (krb5) contains a flaw related to the acceptability of checksums. This may allow a remote attacker to modify user-visible prompt text, modify a reponse to a KDC, or forge a KRB-SAFE message via unkeyed checksums or the use of RC4 keys. |
Information Assurance Vulnerability Management (IAVM)
| Date | Description |
|---|---|
| 2011-10-27 | IAVM : 2011-A-0147 - Multiple Vulnerabilities in VMware ESX and ESXi Severity : Category I - VMSKEY : V0030545 |
| 2011-05-12 | IAVM : 2011-A-0066 - Multiple Vulnerabilities in VMware Products Severity : Category I - VMSKEY : V0027158 |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2016-03-04 | Name : The remote VMware ESX / ESXi host is missing a security-related patch. File : vmware_VMSA-2011-0012_remote.nasl - Type : ACT_GATHER_INFO |
| 2016-03-04 | Name : The remote VMware ESX / ESXi host is missing a security-related patch. File : vmware_VMSA-2011-0007_remote.nasl - Type : ACT_GATHER_INFO |
| 2015-01-19 | Name : The remote Solaris system is missing a security patch for third-party software. File : solaris11_kerberos_20130924_2.nasl - Type : ACT_GATHER_INFO |
| 2014-11-26 | Name : The remote OracleVM host is missing one or more security updates. File : oraclevm_OVMSA-2011-0015.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_3_krb5-101201.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2010-0926.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20101130_krb5_on_SL4_x.nasl - Type : ACT_GATHER_INFO |
| 2012-01-24 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201201-13.nasl - Type : ACT_GATHER_INFO |
| 2011-10-14 | Name : The remote VMware ESXi / ESX host is missing one or more security-related pat... File : vmware_VMSA-2011-0012.nasl - Type : ACT_GATHER_INFO |
| 2011-05-05 | Name : The remote openSUSE host is missing a security update. File : suse_11_1_krb5-101201.nasl - Type : ACT_GATHER_INFO |
| 2011-05-05 | Name : The remote openSUSE host is missing a security update. File : suse_11_2_krb5-101201.nasl - Type : ACT_GATHER_INFO |
| 2011-04-29 | Name : The remote VMware ESXi / ESX host is missing a security-related patch. File : vmware_VMSA-2011-0007.nasl - Type : ACT_GATHER_INFO |
| 2011-03-22 | Name : The remote host is missing a Mac OS X update that fixes several security issues. File : macosx_SecUpd2011-001.nasl - Type : ACT_GATHER_INFO |
| 2011-03-22 | Name : The remote host is missing a Mac OS X update that fixes several security issues. File : macosx_10_6_7.nasl - Type : ACT_GATHER_INFO |
| 2011-01-24 | Name : The remote HP-UX host is missing a security-related patch. File : hpux_PHSS_41775.nasl - Type : ACT_GATHER_INFO |
| 2010-12-10 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_11bbccbc03ee11e0bcdb001fc61c2a55.nasl - Type : ACT_GATHER_INFO |
| 2010-12-10 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-1030-1.nasl - Type : ACT_GATHER_INFO |
| 2010-12-10 | Name : The remote Fedora host is missing a security update. File : fedora_2010-18425.nasl - Type : ACT_GATHER_INFO |
| 2010-12-09 | Name : The remote Fedora host is missing a security update. File : fedora_2010-18409.nasl - Type : ACT_GATHER_INFO |
| 2010-12-03 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_krb5-101117.nasl - Type : ACT_GATHER_INFO |
| 2010-12-02 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2129.nasl - Type : ACT_GATHER_INFO |
| 2010-12-02 | Name : The remote CentOS host is missing one or more security updates. File : centos_RHSA-2010-0926.nasl - Type : ACT_GATHER_INFO |
| 2010-12-01 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2010-0926.nasl - Type : ACT_GATHER_INFO |
| 2010-12-01 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2010-0925.nasl - Type : ACT_GATHER_INFO |
| 2010-12-01 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2010-246.nasl - Type : ACT_GATHER_INFO |
| 2010-12-01 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2010-245.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:54:07 |
|
