Vulnerabilities > CVE-2011-2899 - Improper Input Validation vulnerability in Redhat System-Config-Printer
Attack vector
NETWORK Attack complexity
HIGH Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
pysmb.py in system-config-printer 0.6.x and 0.7.x, as used in foomatic-gui and possibly other products, allows remote SMB servers to execute arbitrary commands via shell metacharacters in the (1) NetBIOS or (2) workgroup name, which are not properly handled when searching for network printers.
Vulnerable Configurations
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 SuSE Local Security Checks NASL id SUSE_11_SYSTEM-CONFIG-PRINTER-120104.NASL description The following issues have been fixed : - system-config-printer used an unauthenticated connection when downloading printer drivers from openprinting.org (CVE-2011-4405). This update disables the printer driver download feature. - system-config-printer did not properly quote shell meta characters in SMB server or workgroup names when passing them to the shell. (CVE-2011-2899) last seen 2020-06-05 modified 2012-01-16 plugin id 57555 published 2012-01-16 reporter This script is Copyright (C) 2012-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/57555 title SuSE 11.1 Security Update : system-config-printer (SAT Patch Number 5607) NASL family SuSE Local Security Checks NASL id SUSE_11_4_PYTHON-CUPSHELPERS-120103.NASL description This update fixes a typo from the previous update : system-config-printer used an unauthenticated connection when downloading printer drivers from openprinting.org (CVE-2011-4405). This update disables the printer driver download feature. system-config-printer did not properly quote shell meta characters in SMB server or workgroup names when passing them to the shell (CVE-2011-2899). last seen 2020-06-05 modified 2014-06-13 plugin id 76002 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/76002 title openSUSE Security Update : python-cupshelpers (openSUSE-SU-2011:1331-2) NASL family SuSE Local Security Checks NASL id SUSE_11_3_PYTHON-CUPSHELPERS-120103.NASL description This update fixes a typo from the previous update : system-config-printer used an unauthenticated connection when downloading printer drivers from openprinting.org (CVE-2011-4405). This update disables the printer driver download feature. system-config-printer did not properly quote shell meta characters in SMB server or workgroup names when passing them to the shell (CVE-2011-2899). last seen 2020-06-05 modified 2014-06-13 plugin id 75718 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/75718 title openSUSE Security Update : python-cupshelpers (openSUSE-SU-2011:1331-2) NASL family SuSE Local Security Checks NASL id OPENSUSE-2011-89.NASL description - Add system-config-printer-subprocess-no-shell.patch: avoid escaping issues when running commands. Fix bnc#735322. - Add system-config-printer-no-openprinting.patch: this disables the feature where PPD drivers can be downloaded from OpenPrinting.org. See discussion in bnc#733542. As a side-effect, this fixes CVE-2011-4405. last seen 2020-06-01 modified 2020-06-02 plugin id 74537 published 2014-06-13 reporter This script is Copyright (C) 2014-2019 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/74537 title openSUSE Security Update : system-config-printer (openSUSE-2011-89) NASL family SuSE Local Security Checks NASL id SUSE_11_3_PYTHON-CUPSHELPERS-111208.NASL description system-config-printer used an unauthenticated connection when downloading printer drivers from openprinting.org (CVE-2011-4405). This update disables the printer driver download feature. system-config-printer did not properly quote shell meta characters in SMB server or workgroup names when passing them to the shell (CVE-2011-2899). last seen 2020-06-01 modified 2020-06-02 plugin id 75717 published 2014-06-13 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/75717 title openSUSE Security Update : python-cupshelpers (openSUSE-SU-2011:1331-1) NASL family Scientific Linux Local Security Checks NASL id SL_20110823_SYSTEM_CONFIG_PRINTER_ON_SL4_X.NASL description system-config-printer is a print queue configuration tool with a graphical user interface. It was found that system-config-printer did not properly sanitize NetBIOS and workgroup names when searching for network printers. A remote attacker could use this flaw to execute arbitrary code with the privileges of the user running system-config-printer. (CVE-2011-2899) All users of system-config-printer are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. Running instances of system-config-printer must be restarted for this update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 61120 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/61120 title Scientific Linux Security Update : system-config-printer on SL4.x, SL5.x i386/x86_64 NASL family SuSE Local Security Checks NASL id SUSE_11_4_PYTHON-CUPSHELPERS-111208.NASL description system-config-printer used an unauthenticated connection when downloading printer drivers from openprinting.org (CVE-2011-4405). This update disables the printer driver download feature. system-config-printer did not properly quote shell meta characters in SMB server or workgroup names when passing them to the shell (CVE-2011-2899). last seen 2020-06-01 modified 2020-06-02 plugin id 76001 published 2014-06-13 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/76001 title openSUSE Security Update : python-cupshelpers (openSUSE-SU-2011:1331-1) NASL family CentOS Local Security Checks NASL id CENTOS_RHSA-2011-1196.NASL description Updated system-config-printer packages that fix one security issue 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. system-config-printer is a print queue configuration tool with a graphical user interface. It was found that system-config-printer did not properly sanitize NetBIOS and workgroup names when searching for network printers. A remote attacker could use this flaw to execute arbitrary code with the privileges of the user running system-config-printer. (CVE-2011-2899) All users of system-config-printer are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. Running instances of system-config-printer must be restarted for this update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 55996 published 2011-08-30 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/55996 title CentOS 4 / 5 : system-config-printer (CESA-2011:1196) NASL family Red Hat Local Security Checks NASL id REDHAT-RHSA-2011-1196.NASL description Updated system-config-printer packages that fix one security issue 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. system-config-printer is a print queue configuration tool with a graphical user interface. It was found that system-config-printer did not properly sanitize NetBIOS and workgroup names when searching for network printers. A remote attacker could use this flaw to execute arbitrary code with the privileges of the user running system-config-printer. (CVE-2011-2899) All users of system-config-printer are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. Running instances of system-config-printer must be restarted for this update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 55965 published 2011-08-24 reporter This script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/55965 title RHEL 4 / 5 : system-config-printer (RHSA-2011:1196) NASL family Oracle Linux Local Security Checks NASL id ORACLELINUX_ELSA-2011-1196.NASL description From Red Hat Security Advisory 2011:1196 : Updated system-config-printer packages that fix one security issue 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. system-config-printer is a print queue configuration tool with a graphical user interface. It was found that system-config-printer did not properly sanitize NetBIOS and workgroup names when searching for network printers. A remote attacker could use this flaw to execute arbitrary code with the privileges of the user running system-config-printer. (CVE-2011-2899) All users of system-config-printer are advised to upgrade to these updated packages, which contain a backported patch to resolve this issue. Running instances of system-config-printer must be restarted for this update to take effect. last seen 2020-06-01 modified 2020-06-02 plugin id 68332 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/68332 title Oracle Linux 4 / 5 : system-config-printer (ELSA-2011-1196)
Redhat
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References
- http://cvs.savannah.gnu.org/viewvc/foomatic-gui/foomatic/pysmb.py?root=foomatic-gui&r1=1.2&r2=1.3&view=patch
- http://secunia.com/advisories/45744
- http://www.redhat.com/support/errata/RHSA-2011-1196.html
- http://www.securitytracker.com/id?1025967
- https://bugs.launchpad.net/ubuntu/+source/foomatic-gui/+bug/811119
- https://bugzilla.redhat.com/show_bug.cgi?id=728348