Executive Summary
| Summary | |
|---|---|
| Title | krb5-appl security update |
| Informations | |||
|---|---|---|---|
| Name | RHSA-2011:0920 | First vendor Publication | 2011-07-05 |
| Vendor | RedHat | Last vendor Modification | 2011-07-05 |
| Severity (Vendor) | Important | 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:S/C:P/I:P/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 6.5 | Attack Range | Network |
| Cvss Impact Score | 6.4 | Attack Complexity | Low |
| Cvss Expoit Score | 8 | Authentication | Requires single instance |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Problem Description: Updated krb5-appl packages that fix one security issue are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important 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: Red Hat Enterprise Linux Desktop (v. 6) - i386, x86_64 Red Hat Enterprise Linux HPC Node (v. 6) - x86_64 Red Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64 Red Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 6) - i386, x86_64 3. Description: The krb5-appl packages provide Kerberos-aware telnet, ftp, rcp, rsh, and rlogin clients and servers. While these have been replaced by tools such as OpenSSH in most environments, they remain in use in others. It was found that gssftp, a Kerberos-aware FTP server, did not properly drop privileges. A remote FTP user could use this flaw to gain unauthorized read or write access to files that are owned by the root group. (CVE-2011-1526) Red Hat would like to thank the MIT Kerberos project for reporting this issue. Upstream acknowledges Tim Zingelman as the original reporter. All krb5-appl users should upgrade to these updated packages, which contain a backported patch to correct 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 the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/kb/docs/DOC-11259 5. Bugs fixed (http://bugzilla.redhat.com/): 711419 - CVE-2011-1526 krb5, krb5-appl: ftpd incorrect group privilege dropping (MITKRB5-SA-2011-005) |
Original Source
| Url : https://rhn.redhat.com/errata/RHSA-2011-0920.html |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-269 | Improper Privilege Management |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:12828 | |||
| Oval ID: | oval:org.mitre.oval:def:12828 | ||
| Title: | DSA-2283-1 krb5-appl -- programming error | ||
| Description: | Tim Zingelmann discovered that due an incorrect configure script the kerborised FTP server failed to set the effective GID correctly, resulting in privilege escalation. The oldstable distribution is not affected. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2283-1 CVE-2011-1526 | Version: | 7 |
| Platform(s): | Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | krb5-appl |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:21089 | |||
| Oval ID: | oval:org.mitre.oval:def:21089 | ||
| Title: | RHSA-2012:0306: krb5 security and bug fix update (Low) | ||
| Description: | ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5_setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2012:0306-03 CVE-2011-1526 | Version: | 4 |
| Platform(s): | Red Hat Enterprise Linux 5 | Product(s): | krb5 |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:21313 | |||
| Oval ID: | oval:org.mitre.oval:def:21313 | ||
| Title: | RHSA-2011:0920: krb5-appl security update (Important) | ||
| Description: | ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5_setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script. | ||
| Family: | unix | Class: | patch |
| Reference(s): | RHSA-2011:0920-01 CVE-2011-1526 | Version: | 4 |
| Platform(s): | Red Hat Enterprise Linux 6 | Product(s): | krb5-appl |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:23140 | |||
| Oval ID: | oval:org.mitre.oval:def:23140 | ||
| Title: | ELSA-2011:0920: krb5-appl security update (Important) | ||
| Description: | ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5_setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011:0920-01 CVE-2011-1526 | Version: | 6 |
| Platform(s): | Oracle Linux 6 | Product(s): | krb5-appl |
| Definition Synopsis: | |||
| Definition Id: oval:org.mitre.oval:def:23359 | |||
| Oval ID: | oval:org.mitre.oval:def:23359 | ||
| Title: | ELSA-2012:0306: krb5 security and bug fix update (Low) | ||
| Description: | ftpd.c in the GSS-API FTP daemon in MIT Kerberos Version 5 Applications (aka krb5-appl) 1.0.1 and earlier does not check the krb5_setegid return value, which allows remote authenticated users to bypass intended group access restrictions, and create, overwrite, delete, or read files, via standard FTP commands, related to missing autoconf tests in a configure script. | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2012:0306-03 CVE-2011-1526 | Version: | 6 |
| Platform(s): | Oracle Linux 5 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:27892 | |||
| Oval ID: | oval:org.mitre.oval:def:27892 | ||
| Title: | DEPRECATED: ELSA-2012-0306 -- krb5 security and bug fix update (low) | ||
| Description: | [1.6.1-70.el5] - add upstream patch for telnetd buffer overflow (CVE-2011-4862, #770351) [1.6.1-69.el5] - ftp: fix a static analysis should-never-happen NULL dereference (#750823) [1.6.1-68.el5] - backport fixes to teach libkrb5 to use descriptors higher than FD_SETSIZE to talk to a KDC by using poll() if it's detected at compile-time, revised (#701444, RT#6905) [1.6.1-67.el5] - add backported patch by way of jbarbuc to free subkeys created by the KDC while processing TGS requests (#708516) [1.6.1-66.el5] - add backported patch by way of several people to better avoid false detection of replay attacks when talking to systems with coarse time resolution (#713500) [1.6.1-65.el5] - ftpd: add backported patch to check for errors when calling setegid (MITKRB5-SA-2011-005, CVE-2011-1526, #719098) [1.6.1-64.el5] - klist: don't trip over referral entries when invoked with -s (#729067, RT#6915) | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2012-0306 CVE-2011-1526 | Version: | 4 |
| Platform(s): | Oracle Linux 5 | Product(s): | krb5 |
| Definition Synopsis: | |||
| |||
| Definition Id: oval:org.mitre.oval:def:28085 | |||
| Oval ID: | oval:org.mitre.oval:def:28085 | ||
| Title: | DEPRECATED: ELSA-2011-0920 -- krb5-appl security update (important) | ||
| Description: | [1.0.1-2.1] - ftpd: add candidate patch to detect setegid/setregid/setresgid and check for errors when calling them (MITKRB5-SA-2011-005, CVE-2011-1526, #713341) | ||
| Family: | unix | Class: | patch |
| Reference(s): | ELSA-2011-0920 CVE-2011-1526 | Version: | 4 |
| Platform(s): | Oracle Linux 6 | Product(s): | krb5-appl |
| Definition Synopsis: | |||
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 | |
| Os | 2 | |
| Os | 2 | |
| Os | 2 | |
| Os | 2 | |
| Os | 5 | |
| Os | 2 |
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-08-02 | Name : SuSE Update for krb5-appl openSUSE-SU-2012:0019-1 (krb5-appl) File : nvt/gb_suse_2012_0019_1.nasl |
| 2012-08-02 | Name : SuSE Update for krb5-appl openSUSE-SU-2012:0051-1 (krb5-appl) File : nvt/gb_suse_2012_0051_1.nasl |
| 2012-06-06 | Name : RedHat Update for krb5-appl RHSA-2011:0920-01 File : nvt/gb_RHSA-2011_0920-01_krb5-appl.nasl |
| 2012-02-21 | Name : RedHat Update for krb5 RHSA-2012:0306-03 File : nvt/gb_RHSA-2012_0306-03_krb5.nasl |
| 2012-02-12 | Name : Gentoo Security Advisory GLSA 201201-14 (mit-krb5-appl) File : nvt/glsa_201201_14.nasl |
| 2012-01-09 | Name : Fedora Update for krb5-appl FEDORA-2011-17492 File : nvt/gb_fedora_2011_17492_krb5-appl_fc15.nasl |
| 2011-08-07 | Name : Debian Security Advisory DSA 2283-1 (krb5-appl) File : nvt/deb_2283_1.nasl |
| 2011-07-27 | Name : Mandriva Update for krb5-appl MDVSA-2011:117 (krb5-appl) File : nvt/gb_mandriva_MDVSA_2011_117.nasl |
| 2011-07-18 | Name : Fedora Update for krb5-appl FEDORA-2011-9080 File : nvt/gb_fedora_2011_9080_krb5-appl_fc15.nasl |
| 2011-07-18 | Name : Fedora Update for krb5-appl FEDORA-2011-9109 File : nvt/gb_fedora_2011_9109_krb5-appl_fc14.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 73617 | Kerberos Applications GSS-API FTP Daemon EGID Privilege Matching Restriction ... |
Information Assurance Vulnerability Management (IAVM)
| Date | Description |
|---|---|
| 2011-07-07 | IAVM : 2011-B-0077 - MIT Kerberos Remote Privilege Escalation Vulnerability Severity : Category II - VMSKEY : V0029345 |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2014-11-17 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2012-0168.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_4_krb5-appl-111229.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_4_krb5-111019.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_3_krb5-appl-111229.nasl - Type : ACT_GATHER_INFO |
| 2014-06-13 | Name : The remote openSUSE host is missing a security update. File : suse_11_3_krb5-111019.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2011-0920.nasl - Type : ACT_GATHER_INFO |
| 2013-07-12 | Name : The remote Oracle Linux host is missing one or more security updates. File : oraclelinux_ELSA-2012-0306.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20110705_krb5_appl_on_SL6_x.nasl - Type : ACT_GATHER_INFO |
| 2012-08-01 | Name : The remote Scientific Linux host is missing one or more security updates. File : sl_20120221_krb5_on_SL5_x.nasl - Type : ACT_GATHER_INFO |
| 2012-02-21 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2012-0306.nasl - Type : ACT_GATHER_INFO |
| 2012-01-24 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201201-14.nasl - Type : ACT_GATHER_INFO |
| 2012-01-03 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_krb5-111229.nasl - Type : ACT_GATHER_INFO |
| 2012-01-03 | Name : The remote SuSE 10 host is missing a security-related patch. File : suse_krb5-7899.nasl - Type : ACT_GATHER_INFO |
| 2011-07-26 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2283.nasl - Type : ACT_GATHER_INFO |
| 2011-07-25 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2011-117.nasl - Type : ACT_GATHER_INFO |
| 2011-07-15 | Name : The remote Fedora host is missing a security update. File : fedora_2011-9109.nasl - Type : ACT_GATHER_INFO |
| 2011-07-15 | Name : The remote Fedora host is missing a security update. File : fedora_2011-9080.nasl - Type : ACT_GATHER_INFO |
| 2011-07-06 | Name : The remote Red Hat host is missing one or more security updates. File : redhat-RHSA-2011-0920.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:54:51 |
|
