Vulnerabilities > CVE-2012-1015 - Improper Input Validation vulnerability in MIT Kerberos 5
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
The kdc_handle_protected_negotiation function in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.8.x, 1.9.x before 1.9.5, and 1.10.x before 1.10.3 attempts to calculate a checksum before verifying that the key type is appropriate for a checksum, which allows remote attackers to execute arbitrary code or cause a denial of service (uninitialized pointer free, heap memory corruption, and daemon crash) via a crafted AS-REQ request.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 11 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Buffer Overflow via Environment Variables This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
- Server Side Include (SSI) Injection An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
- Cross Zone Scripting An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
- Cross Site Scripting through Log Files An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
- Command Line Execution through SQL Injection An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2518.NASL description Emmanuel Bouillon from NCI Agency discovered multiple vulnerabilities in MIT Kerberos, a daemon implementing the network authentication protocol. - CVE-2012-1014 By sending specially crafted AS-REQ (Authentication Service Request) to a KDC (Key Distribution Center), an attacker could make it free an uninitialized pointer, corrupting the heap. This can lead to process crash or even arbitrary code execution. This CVE only affects testing (wheezy) and unstable (sid) distributions. - CVE-2012-1015 By sending specially crafted AS-REQ to a KDC, an attacker could make it dereference an uninitialized pointer, leading to process crash or even arbitrary code execution In both cases, arbitrary code execution is believed to be difficult to achieve, but might not be impossible. last seen 2020-03-17 modified 2012-08-01 plugin id 61374 published 2012-08-01 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61374 title Debian DSA-2518-1 : krb5 - denial of service and remote code execution code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DSA-2518. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(61374); script_version("1.12"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2012-1014", "CVE-2012-1015"); script_xref(name:"DSA", value:"2518"); script_name(english:"Debian DSA-2518-1 : krb5 - denial of service and remote code execution"); script_summary(english:"Checks dpkg output for the updated package"); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Emmanuel Bouillon from NCI Agency discovered multiple vulnerabilities in MIT Kerberos, a daemon implementing the network authentication protocol. - CVE-2012-1014 By sending specially crafted AS-REQ (Authentication Service Request) to a KDC (Key Distribution Center), an attacker could make it free an uninitialized pointer, corrupting the heap. This can lead to process crash or even arbitrary code execution. This CVE only affects testing (wheezy) and unstable (sid) distributions. - CVE-2012-1015 By sending specially crafted AS-REQ to a KDC, an attacker could make it dereference an uninitialized pointer, leading to process crash or even arbitrary code execution In both cases, arbitrary code execution is believed to be difficult to achieve, but might not be impossible." ); script_set_attribute( attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=683429" ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2012-1014" ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2012-1015" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/squeeze/krb5" ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2012/dsa-2518" ); script_set_attribute( attribute:"solution", value: "Upgrade the krb5 packages. For the stable distribution (squeeze), this problem has been fixed in version 1.8.3+dfsg-4squeeze6." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:krb5"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0"); script_set_attribute(attribute:"patch_publication_date", value:"2012/07/31"); script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/01"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Debian Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l"); exit(0); } include("audit.inc"); include("debian_package.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian"); if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (deb_check(release:"6.0", prefix:"krb5-admin-server", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"krb5-doc", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"krb5-kdc", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"krb5-kdc-ldap", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"krb5-multidev", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"krb5-pkinit", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"krb5-user", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"libkrb5-dev", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (deb_check(release:"6.0", prefix:"libkrb53", reference:"1.8.3+dfsg-4squeeze6")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");NASL family SuSE Local Security Checks NASL id OPENSUSE-2012-497.NASL description Several potential codeexecution flaws were fixed in krb5. last seen 2020-06-05 modified 2014-06-13 plugin id 74706 published 2014-06-13 reporter This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/74706 title openSUSE Security Update : krb5 (openSUSE-SU-2012:0967-1) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from openSUSE Security Update openSUSE-2012-497. # # The text description of this plugin is (C) SUSE LLC. # include("compat.inc"); if (description) { script_id(74706); script_version("1.5"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/06/04"); script_cve_id("CVE-2012-1014", "CVE-2012-1015"); script_name(english:"openSUSE Security Update : krb5 (openSUSE-SU-2012:0967-1)"); script_summary(english:"Check for the openSUSE-2012-497 patch"); script_set_attribute( attribute:"synopsis", value:"The remote openSUSE host is missing a security update." ); script_set_attribute( attribute:"description", value:"Several potential codeexecution flaws were fixed in krb5." ); script_set_attribute( attribute:"see_also", value:"https://bugzilla.novell.com/show_bug.cgi?id=770172" ); script_set_attribute( attribute:"see_also", value:"https://lists.opensuse.org/opensuse-updates/2012-08/msg00016.html" ); script_set_attribute(attribute:"solution", value:"Update the affected krb5 packages."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-client"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-client-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-debuginfo-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-debugsource"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-devel-32bit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-kdb-ldap"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-kdb-ldap-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-preauth-pkinit"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-plugin-preauth-pkinit-debuginfo"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-server"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:krb5-server-debuginfo"); script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:12.1"); script_set_attribute(attribute:"vuln_publication_date", value:"2012/08/06"); script_set_attribute(attribute:"patch_publication_date", value:"2012/08/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/13"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2014-2020 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"SuSE Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/SuSE/release"); if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE"); if (release !~ "^(SUSE12\.1)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "12.1", release); if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); ourarch = get_kb_item("Host/cpu"); if (!ourarch) audit(AUDIT_UNKNOWN_ARCH); if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch); flag = 0; if ( rpm_check(release:"SUSE12.1", reference:"krb5-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-client-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-client-debuginfo-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-debuginfo-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-debugsource-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-devel-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-plugin-kdb-ldap-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-plugin-kdb-ldap-debuginfo-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-plugin-preauth-pkinit-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-plugin-preauth-pkinit-debuginfo-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-server-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", reference:"krb5-server-debuginfo-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", cpu:"x86_64", reference:"krb5-32bit-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", cpu:"x86_64", reference:"krb5-debuginfo-32bit-1.9.1-24.9.1") ) flag++; if ( rpm_check(release:"SUSE12.1", cpu:"x86_64", reference:"krb5-devel-32bit-1.9.1-24.9.1") ) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get()); else security_hole(0); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "krb5"); }NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2012-1131.NASL description Updated krb5 packages that fix two security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 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). An uninitialized pointer use flaw was found in the way the MIT Kerberos KDC handled initial authentication requests (AS-REQ). A remote, unauthenticated attacker could use this flaw to crash the KDC via a specially crafted AS-REQ request. (CVE-2012-1015) A NULL pointer dereference flaw was found in the MIT Kerberos administration daemon, kadmind. A Kerberos administrator who has the last seen 2020-06-01 modified 2020-06-02 plugin id 67093 published 2013-06-29 reporter This script is Copyright (C) 2013-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/67093 title CentOS 6 : krb5 (CESA-2012:1131) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2012-120.NASL description A vulnerability has been discovered and corrected in krb5 : The MIT krb5 KDC (Key Distribution Center) daemon can free an uninitialized pointer while processing an unusual AS-REQ, corrupting the process heap and possibly causing the daemon to abnormally terminate. An attacker could use this vulnerability to execute malicious code, but exploiting frees of uninitialized pointers to execute code is believed to be difficult. It is possible that a legitimate client that is misconfigured in an unusual way could trigger this vulnerability (CVE-2012-1015). The updated packages have been patched to correct this issue. last seen 2020-06-01 modified 2020-06-02 plugin id 61970 published 2012-09-06 reporter This script is Copyright (C) 2012-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/61970 title Mandriva Linux Security Advisory : krb5 (MDVSA-2012:120) NASL family Fedora Local Security Checks NASL id FEDORA_2012-11388.NASL description This update incorporates the upstream fixes for CVE-2012-1014 and CVE-2012-1015, in which the KDC could be made to attempt to dereference or free an uninitialized pointer. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-17 modified 2012-08-06 plugin id 61425 published 2012-08-06 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61425 title Fedora 17 : krb5-1.10.2-6.fc17 (2012-11388) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2012-1131.NASL description From Red Hat Security Advisory 2012:1131 : Updated krb5 packages that fix two security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 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). An uninitialized pointer use flaw was found in the way the MIT Kerberos KDC handled initial authentication requests (AS-REQ). A remote, unauthenticated attacker could use this flaw to crash the KDC via a specially crafted AS-REQ request. (CVE-2012-1015) A NULL pointer dereference flaw was found in the MIT Kerberos administration daemon, kadmind. A Kerberos administrator who has the last seen 2020-06-01 modified 2020-06-02 plugin id 68589 published 2013-07-12 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/68589 title Oracle Linux 6 : krb5 (ELSA-2012-1131) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2012-1131.NASL description Updated krb5 packages that fix two security issues are now available for Red Hat Enterprise Linux 6. The Red Hat Security Response Team has rated this update as having important security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. 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). An uninitialized pointer use flaw was found in the way the MIT Kerberos KDC handled initial authentication requests (AS-REQ). A remote, unauthenticated attacker could use this flaw to crash the KDC via a specially crafted AS-REQ request. (CVE-2012-1015) A NULL pointer dereference flaw was found in the MIT Kerberos administration daemon, kadmind. A Kerberos administrator who has the last seen 2020-06-01 modified 2020-06-02 plugin id 61377 published 2012-08-01 reporter This script is Copyright (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61377 title RHEL 6 : krb5 (RHSA-2012:1131) NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201312-12.NASL description The remote host is affected by the vulnerability described in GLSA-201312-12 (MIT Kerberos 5: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in the Key Distribution Center in MIT Kerberos 5. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could send a specially crafted request, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Additionally, a remote attacker could impersonate a kadmind server and send a specially crafted packet to the password change port, which can result in a ping-pong condition and a Denial of Service condition. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 71487 published 2013-12-17 reporter This script is Copyright (C) 2013-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/71487 title GLSA-201312-12 : MIT Kerberos 5: Multiple vulnerabilities NASL family Ubuntu Local Security Checks NASL id UBUNTU_USN-1520-1.NASL description Emmanuel Bouillon discovered that the MIT krb5 Key Distribution Center (KDC) daemon could free an uninitialized pointer when handling a malformed AS-REQ message. A remote unauthenticated attacker could use this to cause a denial of service or possibly execute arbitrary code. (CVE-2012-1015) Emmanuel Bouillon discovered that the MIT krb5 Key Distribution Center (KDC) daemon could dereference an uninitialized pointer while handling a malformed AS-REQ message. A remote unauthenticated attacker could use this to cause a denial of service or possibly execute arbitrary code. This issue only affected Ubuntu 12.04 LTS. (CVE-2012-1014) Simo Sorce discovered that the MIT krb5 Key Distribution Center (KDC) daemon could dereference a NULL pointer when handling a malformed TGS-REQ message. A remote authenticated attacker could use this to cause a denial of service. (CVE-2012-1013) It was discovered that the kadmin protocol implementation in MIT krb5 did not properly restrict access to the SET_STRING and GET_STRINGS operations. A remote authenticated attacker could use this to expose or modify sensitive information. This issue only affected Ubuntu 12.04 LTS. (CVE-2012-1012). Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-06-01 modified 2020-06-02 plugin id 61379 published 2012-08-01 reporter Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61379 title Ubuntu 10.04 LTS / 11.04 / 11.10 / 12.04 LTS : krb5 vulnerabilities (USN-1520-1) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2012-1200.NASL description An updated rhev-hypervisor6 package that fixes multiple security issues and various bugs is now available. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. The rhev-hypervisor6 package provides a Red Hat Enterprise Virtualization Hypervisor ISO disk image. The Red Hat Enterprise Virtualization Hypervisor is a dedicated Kernel-based Virtual Machine (KVM) hypervisor. It includes everything necessary to run and manage virtual machines: A subset of the Red Hat Enterprise Linux operating environment and the Red Hat Enterprise Virtualization Agent. Note: Red Hat Enterprise Virtualization Hypervisor is only available for the Intel 64 and AMD64 architectures with virtualization extensions. Multiple errors in glibc last seen 2020-06-01 modified 2020-06-02 plugin id 78931 published 2014-11-08 reporter This script is Copyright (C) 2014-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/78931 title RHEL 6 : rhev-hypervisor6 (RHSA-2012:1200) NASL family Fedora Local Security Checks NASL id FEDORA_2012-11370.NASL description This update updates the package from version 1.9.3 to version 1.9.4, mainly to pick up a fix for an interoperability problem with Windows Server 2008R2 read-only domain controllers, and incorporates the upstream fix for CVE-2012-1015, in which the KDC could be made to attempt to free an uninitialized pointer. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues. last seen 2020-03-17 modified 2012-08-10 plugin id 61477 published 2012-08-10 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61477 title Fedora 16 : krb5-1.9.4-3.fc16 (2012-11370) NASL family Mandriva Local Security Checks NASL id MANDRIVA_MDVSA-2013-042.NASL description Multiple vulnerabilities has been discovered and corrected in krb5 : Fix a kadmind denial of service issue (NULL pointer dereference), which could only be triggered by an administrator with the create privilege (CVE-2012-1013). The MIT krb5 KDC (Key Distribution Center) daemon can free an uninitialized pointer while processing an unusual AS-REQ, corrupting the process heap and possibly causing the daemon to abnormally terminate. An attacker could use this vulnerability to execute malicious code, but exploiting frees of uninitialized pointers to execute code is believed to be difficult. It is possible that a legitimate client that is misconfigured in an unusual way could trigger this vulnerability (CVE-2012-1015). It was reported that the KDC plugin for PKINIT could dereference a NULL pointer when a malformed packet caused processing to terminate early, which led to a crash of the KDC process. An attacker would require a valid PKINIT certificate or have observed a successful PKINIT authentication to execute a successful attack. In addition, an unauthenticated attacker could execute the attack of anonymouse PKINIT was enabled (CVE-2013-1415). The updated packages have been patched to correct these issues. last seen 2020-06-01 modified 2020-06-02 plugin id 66056 published 2013-04-20 reporter This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/66056 title Mandriva Linux Security Advisory : krb5 (MDVSA-2013:042) NASL family Scientific Linux Local Security Checks NASL id SL_20120731_KRB5_ON_SL6_X.NASL 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). An uninitialized pointer use flaw was found in the way the MIT Kerberos KDC handled initial authentication requests (AS-REQ). A remote, unauthenticated attacker could use this flaw to crash the KDC via a specially crafted AS-REQ request. (CVE-2012-1015) A NULL pointer dereference flaw was found in the MIT Kerberos administration daemon, kadmind. A Kerberos administrator who has the last seen 2020-03-18 modified 2012-08-03 plugin id 61407 published 2012-08-03 reporter This script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/61407 title Scientific Linux Security Update : krb5 on SL6.x i386/x86_64 (20120731) NASL family Amazon Linux Local Security Checks NASL id ALA_ALAS-2012-114.NASL description An uninitialized pointer use flaw was found in the way the MIT Kerberos KDC handled initial authentication requests (AS-REQ). A remote, unauthenticated attacker could use this flaw to crash the KDC via a specially crafted AS-REQ request. (CVE-2012-1015) A NULL pointer dereference flaw was found in the MIT Kerberos administration daemon, kadmind. A Kerberos administrator who has the last seen 2020-06-01 modified 2020-06-02 plugin id 69604 published 2013-09-04 reporter This script is Copyright (C) 2013-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/69604 title Amazon Linux AMI : krb5 (ALAS-2012-114)
Redhat
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