Vulnerabilities > CVE-2012-2085 - Code Injection vulnerability in Gajim
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
The exec_command function in common/helpers.py in Gajim before 0.15 allows user-assisted remote attackers to execute arbitrary commands via shell metacharacters in an href attribute.
Vulnerable Configurations
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- 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.
- Manipulating User-Controlled Variables This attack targets user controlled variables (DEBUG=1, PHP Globals, and So Forth). An attacker can override environment variables leveraging user-supplied, untrusted query variables directly used on the application server without any data sanitization. In extreme cases, the attacker can change variables controlling the business logic of the application. For instance, in languages like PHP, a number of poorly set default configurations may allow the user to override variables.
Nessus
NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201208-04.NASL description The remote host is affected by the vulnerability described in GLSA-201208-04 (Gajim: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Gajim. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could entice a user to open a specially crafted link using Gajim, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Furthermore, a remote attacker could use a specially crafted Jabber ID, possibly resulting in execution of arbitrary SQL statements. A local attacker could perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 61543 published 2012-08-15 reporter This script is Copyright (C) 2012-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/61543 title GLSA-201208-04 : Gajim: Multiple vulnerabilities code # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Gentoo Linux Security Advisory GLSA 201208-04. # # The advisory text is Copyright (C) 2001-2015 Gentoo Foundation, Inc. # and licensed under the Creative Commons - Attribution / Share Alike # license. See http://creativecommons.org/licenses/by-sa/3.0/ # include("compat.inc"); if (description) { script_id(61543); script_version("1.8"); script_cvs_date("Date: 2018/07/11 17:09:26"); script_cve_id("CVE-2012-2085", "CVE-2012-2086", "CVE-2012-2093"); script_bugtraq_id(52943, 53017); script_xref(name:"GLSA", value:"201208-04"); script_name(english:"GLSA-201208-04 : Gajim: Multiple vulnerabilities"); script_summary(english:"Checks for updated package(s) in /var/db/pkg"); script_set_attribute( attribute:"synopsis", value: "The remote Gentoo host is missing one or more security-related patches." ); script_set_attribute( attribute:"description", value: "The remote host is affected by the vulnerability described in GLSA-201208-04 (Gajim: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Gajim. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could entice a user to open a specially crafted link using Gajim, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Furthermore, a remote attacker could use a specially crafted Jabber ID, possibly resulting in execution of arbitrary SQL statements. A local attacker could perform symlink attacks to overwrite arbitrary files with the privileges of the user running the application. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/201208-04" ); script_set_attribute( attribute:"solution", value: "All Gajim users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=net-im/gajim-0.15-r1'" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:gajim"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"patch_publication_date", value:"2012/08/14"); script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/15"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc."); script_family(english:"Gentoo Local Security Checks"); script_dependencies("ssh_get_info.nasl"); script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("qpkg.inc"); if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED); if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo"); if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING); flag = 0; if (qpkg_check(package:"net-im/gajim", unaffected:make_list("ge 0.15-r1"), vulnerable:make_list("lt 0.15-r1"))) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get()); else security_hole(0); exit(0); } else { tested = qpkg_tests_get(); if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested); else audit(AUDIT_PACKAGE_NOT_INSTALLED, "Gajim"); }
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2453.NASL description Several vulnerabilities have been discovered in Gajim, a feature-rich Jabber client. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2012-1987 Gajim is not properly sanitizing input before passing it to shell commands. An attacker can use this flaw to execute arbitrary code on behalf of the victim if the user e.g. clicks on a specially crafted URL in an instant message. - CVE-2012-2093 Gajim is using predictable temporary files in an insecure manner when converting instant messages containing LaTeX to images. A local attacker can use this flaw to conduct symlink attacks and overwrite files the victim has write access to. - CVE-2012-2086 Gajim is not properly sanitizing input when logging conversations which results in the possibility to conduct SQL injection attacks. last seen 2020-03-17 modified 2012-04-17 plugin id 58766 published 2012-04-17 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/58766 title Debian DSA-2453-1 : gajim - several vulnerabilities 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-2453. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(58766); script_version("1.11"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2012-2085", "CVE-2012-2086", "CVE-2012-2093"); script_bugtraq_id(52943); script_xref(name:"DSA", value:"2453"); script_name(english:"Debian DSA-2453-1 : gajim - several vulnerabilities"); 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: "Several vulnerabilities have been discovered in Gajim, a feature-rich Jabber client. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2012-1987 Gajim is not properly sanitizing input before passing it to shell commands. An attacker can use this flaw to execute arbitrary code on behalf of the victim if the user e.g. clicks on a specially crafted URL in an instant message. - CVE-2012-2093 Gajim is using predictable temporary files in an insecure manner when converting instant messages containing LaTeX to images. A local attacker can use this flaw to conduct symlink attacks and overwrite files the victim has write access to. - CVE-2012-2086 Gajim is not properly sanitizing input when logging conversations which results in the possibility to conduct SQL injection attacks." ); script_set_attribute( attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=668038" ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2012-1987" ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2012-2093" ); script_set_attribute( attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2012-2086" ); script_set_attribute( attribute:"see_also", value:"https://packages.debian.org/source/squeeze/gajim" ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2012/dsa-2453" ); script_set_attribute( attribute:"solution", value: "Upgrade the gajim packages. For the stable distribution (squeeze), this problem has been fixed in version 0.13.4-3+squeeze3." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available"); script_set_attribute(attribute:"exploit_available", value:"true"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:gajim"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0"); script_set_attribute(attribute:"patch_publication_date", value:"2012/04/16"); script_set_attribute(attribute:"plugin_publication_date", value:"2012/04/17"); 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:"gajim", reference:"0.13.4-3+squeeze3")) 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");
References
- http://secunia.com/advisories/48708
- http://secunia.com/advisories/48794
- http://security.gentoo.org/glsa/glsa-201208-04.xml
- http://www.openwall.com/lists/oss-security/2012/04/08/1
- http://www.openwall.com/lists/oss-security/2012/04/08/2
- http://www.securityfocus.com/bid/52943
- https://trac.gajim.org/changeset/bc296e96ac10
- https://trac.gajim.org/ticket/7031