Vulnerabilities > CVE-2012-6470 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Opera Browser
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
COMPLETE Integrity impact
COMPLETE Availability impact
COMPLETE Summary
Opera before 12.12 does not properly allocate memory for GIF images, which allows remote attackers to execute arbitrary code or cause a denial of service (memory overwrite) via a malformed image.
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.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Exploit-Db
description | Opera Web Browser 12.11 Crash PoC. CVE-2012-6470. Dos exploit for windows platform |
id | EDB-ID:23107 |
last seen | 2016-02-02 |
modified | 2012-12-03 |
published | 2012-12-03 |
reporter | coolkaveh |
source | https://www.exploit-db.com/download/23107/ |
title | Opera Web Browser 12.11 Crash PoC |
Nessus
NASL family Gentoo Local Security Checks NASL id GENTOO_GLSA-201406-14.NASL description The remote host is affected by the vulnerability described in GLSA-201406-14 (Opera: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Opera. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could entice a user to open a specially crafted web page using Opera, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Furthermore, a remote attacker may be able to obtain sensitive information, conduct Cross-Site Scripting (XSS) attacks, or bypass security restrictions. A local attacker may be able to obtain sensitive information. Workaround : There is no known workaround at this time. last seen 2020-06-01 modified 2020-06-02 plugin id 76065 published 2014-06-16 reporter This script is Copyright (C) 2014-2015 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/76065 title GLSA-201406-14 : Opera: 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 201406-14. # # 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(76065); script_version("$Revision: 1.3 $"); script_cvs_date("$Date: 2015/04/13 14:27:08 $"); script_cve_id("CVE-2012-6461", "CVE-2012-6462", "CVE-2012-6463", "CVE-2012-6464", "CVE-2012-6465", "CVE-2012-6466", "CVE-2012-6467", "CVE-2012-6468", "CVE-2012-6469", "CVE-2012-6470", "CVE-2012-6471", "CVE-2012-6472", "CVE-2013-1618", "CVE-2013-1637", "CVE-2013-1638", "CVE-2013-1639"); script_bugtraq_id(56407, 56594, 56788, 56980, 56984, 57120, 57121, 57132, 57633, 57773); script_xref(name:"GLSA", value:"201406-14"); script_name(english:"GLSA-201406-14 : Opera: 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-201406-14 (Opera: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Opera. Please review the CVE identifiers referenced below for details. Impact : A remote attacker could entice a user to open a specially crafted web page using Opera, possibly resulting in execution of arbitrary code with the privileges of the process or a Denial of Service condition. Furthermore, a remote attacker may be able to obtain sensitive information, conduct Cross-Site Scripting (XSS) attacks, or bypass security restrictions. A local attacker may be able to obtain sensitive information. Workaround : There is no known workaround at this time." ); script_set_attribute( attribute:"see_also", value:"https://security.gentoo.org/glsa/201406-14" ); script_set_attribute( attribute:"solution", value: "All Opera users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose '>=www-client/opera-12.13_p1734'" ); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:ND/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:opera"); script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux"); script_set_attribute(attribute:"patch_publication_date", value:"2014/06/15"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/06/16"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_copyright(english:"This script is Copyright (C) 2014-2015 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:"www-client/opera", unaffected:make_list("ge 12.13_p1734"), vulnerable:make_list("lt 12.13_p1734"))) 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, "Opera"); }
NASL family Windows NASL id OPERA_1212.NASL description The version of Opera installed on the remote host is earlier than 12.12 and is, therefore, reportedly affected by the following vulnerabilities : - An error exists related to GIF image file handling that can allow heap memory corruption and can lead to application crashes or arbitrary code execution. (1038) - An error exists related to URL handling and the address bar that can allow rapid, repeated web requests to cause the incorrect URL to be displayed. (1040) last seen 2020-06-01 modified 2020-06-02 plugin id 63301 published 2012-12-19 reporter This script is Copyright (C) 2012-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/63301 title Opera < 12.12 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(63301); script_version("1.5"); script_cvs_date("Date: 2018/11/15 20:50:27"); script_cve_id("CVE-2012-6470", "CVE-2012-6471"); script_bugtraq_id(56788, 56984); script_xref(name:"EDB-ID", value:"23107"); script_name(english:"Opera < 12.12 Multiple Vulnerabilities"); script_summary(english:"Checks version number of Opera"); script_set_attribute(attribute:"synopsis", value: "The remote host contains a web browser that is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "The version of Opera installed on the remote host is earlier than 12.12 and is, therefore, reportedly affected by the following vulnerabilities : - An error exists related to GIF image file handling that can allow heap memory corruption and can lead to application crashes or arbitrary code execution. (1038) - An error exists related to URL handling and the address bar that can allow rapid, repeated web requests to cause the incorrect URL to be displayed. (1040)"); script_set_attribute(attribute:"see_also", value:"https://seclists.org/fulldisclosure/2012/Dec/54"); script_set_attribute(attribute:"see_also", value:"http://www.opera.com/support/kb/view/1038/"); script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20130224012703/http://www.opera.com/support/kb/view/1040/"); script_set_attribute(attribute:"see_also", value:"http://web.archive.org/web/20170907143134/http://www.opera.com:80/docs/changelogs/unified/1212/"); script_set_attribute(attribute:"solution", value: "Upgrade to Opera 12.12 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:C/I:C/A:C"); script_set_cvss_temporal_vector("CVSS2#E:POC/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:"vuln_publication_date", value:"2012/12/03"); script_set_attribute(attribute:"patch_publication_date", value:"2012/12/18"); script_set_attribute(attribute:"plugin_publication_date", value:"2012/12/19"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:opera:opera_browser"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Windows"); script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc."); script_dependencies("opera_installed.nasl"); script_require_keys("SMB/Opera/Version"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); version = get_kb_item_or_exit("SMB/Opera/Version"); path = get_kb_item_or_exit("SMB/Opera/Path"); version_ui = get_kb_item("SMB/Opera/Version_UI"); if (isnull(version_ui)) version_report = version; else version_report = version_ui; fixed_version = "12.12.1707.0"; # Check if we need to display full version info in case of Alpha/Beta/RC major_minor = eregmatch(string:version, pattern:"^([0-9]+\.[0-9]+)"); if (major_minor[1] == "12.12") { fixed_version_report = fixed_version; version_report = version; } else fixed_version_report = "12.12"; if (ver_compare(ver:version, fix:fixed_version) == -1) { port = get_kb_item("SMB/transport"); if (report_verbosity > 0) { report = '\n Path : ' + path + '\n Installed version : ' + version_report + '\n Fixed version : ' + fixed_version_report + '\n'; security_hole(port:port, extra:report); } else security_hole(port); exit(0); } else audit(AUDIT_INST_PATH_NOT_VULN, "Opera", version_report, path);