Vulnerabilities > CVE-2010-1439 - Permissions, Privileges, and Access Controls vulnerability in Redhat Yum-Rhn-Plugin
Attack vector
LOCAL Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
NONE Summary
yum-rhn-plugin in Red Hat Network Client Tools (aka rhn-client-tools) on Red Hat Enterprise Linux (RHEL) 5 and Fedora uses world-readable permissions for the /var/spool/up2date/loginAuth.pkl file, which allows local users to access the Red Hat Network profile, and possibly prevent future security updates, by leveraging authentication data from this file.
Vulnerable Configurations
Part | Description | Count |
---|---|---|
Application | 2 | |
OS | 1 | |
OS | 3 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- Accessing, Modifying or Executing Executable Files An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
- Leverage Executable Code in Non-Executable Files An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
- Blue Boxing This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
- Restful Privilege Elevation Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
- Target Programs with Elevated Privileges This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.
Nessus
NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2010-0449.NASL description Updated rhn-client-tools packages that fix one security issue are now available for Red Hat Enterprise Linux 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. Red Hat Network Client Tools provide programs and libraries that allow your system to receive software updates from the Red Hat Network (RHN). It was discovered that rhn-client-tools set insecure permissions on the loginAuth.pkl file, used to store session credentials for authenticating connections to Red Hat Network servers. A local, unprivileged user could use these credentials to download packages from the Red Hat Network. They could also manipulate package or action lists associated with the system last seen 2020-06-01 modified 2020-06-02 plugin id 46780 published 2010-06-02 reporter This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/46780 title RHEL 5 : rhn-client-tools (RHSA-2010:0449) code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Red Hat Security Advisory RHSA-2010:0449. The text # itself is copyright (C) Red Hat, Inc. # include("compat.inc"); if (description) { script_id(46780); script_version ("1.20"); script_cvs_date("Date: 2019/10/25 13:36:15"); script_cve_id("CVE-2010-1439"); script_xref(name:"RHSA", value:"2010:0449"); script_name(english:"RHEL 5 : rhn-client-tools (RHSA-2010:0449)"); script_summary(english:"Checks the rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value:"The remote Red Hat host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "Updated rhn-client-tools packages that fix one security issue are now available for Red Hat Enterprise Linux 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. Red Hat Network Client Tools provide programs and libraries that allow your system to receive software updates from the Red Hat Network (RHN). It was discovered that rhn-client-tools set insecure permissions on the loginAuth.pkl file, used to store session credentials for authenticating connections to Red Hat Network servers. A local, unprivileged user could use these credentials to download packages from the Red Hat Network. They could also manipulate package or action lists associated with the system's profile. (CVE-2010-1439) Users of rhn-client-tools are advised to upgrade to these updated packages, which contain a backported patch to correct this issue." ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/security/cve/cve-2010-1439" ); script_set_attribute( attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2010:0449" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:N"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhn-check"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhn-client-tools"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhn-setup"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:rhn-setup-gnome"); script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:5"); script_set_attribute(attribute:"vuln_publication_date", value:"2010/06/07"); script_set_attribute(attribute:"patch_publication_date", value:"2010/06/01"); script_set_attribute(attribute:"plugin_publication_date", value:"2010/06/02"); script_set_attribute(attribute:"generated_plugin", value:"current"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Red Hat Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("rpm.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); release = get_kb_item("Host/RedHat/release"); if (isnull(release) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat"); os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release); if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat"); os_ver = os_ver[1]; if (! preg(pattern:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 5.x", "Red Hat " + os_ver); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu); yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo"); if (!empty_or_null(yum_updateinfo)) { rhsa = "RHSA-2010:0449"; yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa); if (!empty_or_null(yum_report)) { security_report_v4( port : 0, severity : SECURITY_NOTE, extra : yum_report ); exit(0); } else { audit_message = "affected by Red Hat security advisory " + rhsa; audit(AUDIT_OS_NOT, audit_message); } } else { flag = 0; if (rpm_check(release:"RHEL5", reference:"rhn-check-0.4.20-33.el5_5.2")) flag++; if (rpm_check(release:"RHEL5", reference:"rhn-client-tools-0.4.20-33.el5_5.2")) flag++; if (rpm_check(release:"RHEL5", reference:"rhn-setup-0.4.20-33.el5_5.2")) flag++; if (rpm_check(release:"RHEL5", reference:"rhn-setup-gnome-0.4.20-33.el5_5.2")) flag++; if (flag) { security_report_v4( port : 0, severity : SECURITY_NOTE, extra : rpm_report_get() + redhat_report_package_caveat() ); exit(0); } else { tested = pkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "rhn-check / rhn-client-tools / rhn-setup / rhn-setup-gnome"); } }
NASL family Scientific Linux Local Security Checks NASL id SL_20100601_RHN_CLIENT_TOOLS_ON_SL5_X.NASL description It was discovered that rhn-client-tools set insecure permissions on the loginAuth.pkl file, used to store session credentials for authenticating connections to servers. A local, unprivileged user could use these credentials to download packages they wouldn last seen 2020-06-01 modified 2020-06-02 plugin id 60797 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/60797 title Scientific Linux Security Update : rhn-client-tools on SL5.x i386/x86_64 code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text is (C) Scientific Linux. # include("compat.inc"); if (description) { script_id(60797); script_version("1.4"); script_cvs_date("Date: 2019/10/25 13:36:19"); script_cve_id("CVE-2010-1439"); script_name(english:"Scientific Linux Security Update : rhn-client-tools on SL5.x i386/x86_64"); script_summary(english:"Checks rpm output for the updated packages"); script_set_attribute( attribute:"synopsis", value: "The remote Scientific Linux host is missing one or more security updates." ); script_set_attribute( attribute:"description", value: "It was discovered that rhn-client-tools set insecure permissions on the loginAuth.pkl file, used to store session credentials for authenticating connections to servers. A local, unprivileged user could use these credentials to download packages they wouldn't normally have permission to download. They could also manipulate package or action lists associated with the system's profile. (CVE-2010-1439) Note: This package pulled in several other packages as dependencies in order to fix all bugs and security holes." ); # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1006&L=scientific-linux-errata&T=0&P=75 script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?68deffed" ); script_set_attribute(attribute:"solution", value:"Update the affected packages."); script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:N"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux"); script_set_attribute(attribute:"patch_publication_date", value:"2010/06/01"); 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) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof."); script_family(english:"Scientific Linux Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/RedHat/release", "Host/RedHat/rpm-list"); 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/RedHat/release"); if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux"); if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING); cpu = get_kb_item("Host/cpu"); if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH); if (cpu >!< "x86_64" && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Scientific Linux", cpu); flag = 0; if (rpm_check(release:"SL5", reference:"hal-0.5.8.1-59.el5")) flag++; if (rpm_check(release:"SL5", reference:"hal-devel-0.5.8.1-59.el5")) flag++; if (rpm_check(release:"SL5", reference:"hal-gnome-0.5.8.1-59.el5")) flag++; if (rpm_check(release:"SL5", reference:"m2crypto-0.16-6.el5.6")) flag++; if (rpm_check(release:"SL5", reference:"pm-utils-0.99.3-10.el5")) flag++; if (rpm_check(release:"SL5", reference:"python-dmidecode-3.10.8-4.el5")) flag++; if (rpm_check(release:"SL5", reference:"rhn-check-0.4.20-33.el5_5.2")) flag++; if (rpm_check(release:"SL5", reference:"rhn-client-tools-0.4.20-33.el5_5.2")) flag++; if (rpm_check(release:"SL5", reference:"rhn-setup-0.4.20-33.el5_5.2")) flag++; if (rpm_check(release:"SL5", reference:"rhn-setup-gnome-0.4.20-33.el5_5.2")) flag++; if (rpm_check(release:"SL5", reference:"rhnlib-2.5.22-3.el5")) flag++; if (rpm_check(release:"SL5", reference:"yum-rhn-plugin-0.5.4-15.el5")) flag++; if (flag) { if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get()); else security_note(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
Oval
accepted | 2013-04-29T04:18:32.199-04:00 | ||||||||||||
class | vulnerability | ||||||||||||
contributors |
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definition_extensions |
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description | yum-rhn-plugin in Red Hat Network Client Tools (aka rhn-client-tools) on Red Hat Enterprise Linux (RHEL) 5 and Fedora uses world-readable permissions for the /var/spool/up2date/loginAuth.pkl file, which allows local users to access the Red Hat Network profile, and possibly prevent future security updates, by leveraging authentication data from this file. | ||||||||||||
family | unix | ||||||||||||
id | oval:org.mitre.oval:def:9232 | ||||||||||||
status | accepted | ||||||||||||
submitted | 2010-07-09T03:56:16-04:00 | ||||||||||||
title | yum-rhn-plugin in Red Hat Network Client Tools (aka rhn-client-tools) on Red Hat Enterprise Linux (RHEL) 5 and Fedora uses world-readable permissions for the /var/spool/up2date/loginAuth.pkl file, which allows local users to access the Red Hat Network profile, and possibly prevent future security updates, by leveraging authentication data from this file. | ||||||||||||
version | 18 |
Redhat
advisories |
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rpms |
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References
- http://secunia.com/advisories/39996
- http://securitytracker.com/id?1024049
- http://www.osvdb.org/65063
- http://www.redhat.com/support/errata/RHSA-2010-0449.html
- http://www.securityfocus.com/bid/40492
- http://www.vupen.com/english/advisories/2010/1311
- https://bugzilla.redhat.com/show_bug.cgi?id=585386
- https://exchange.xforce.ibmcloud.com/vulnerabilities/59114
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9232