Vulnerabilities > CVE-2012-4732 - Cross-Site Request Forgery (CSRF) vulnerability in Bestpractical RT
Attack vector
NETWORK Attack complexity
MEDIUM Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
Cross-site request forgery (CSRF) vulnerability in Request Tracker (RT) 3.8.12 and other versions before 3.8.15, and 4.0.6 and other versions before 4.0.8, allows remote attackers to hijack the authentication of users for requests that toggle ticket bookmarks.
Vulnerable Configurations
| Part | Description | Count |
|---|---|---|
| Application | 10 |
Common Weakness Enumeration (CWE)
Common Attack Pattern Enumeration and Classification (CAPEC)
- JSON Hijacking (aka JavaScript Hijacking) An attacker targets a system that uses JavaScript Object Notation (JSON) as a transport mechanism between the client and the server (common in Web 2.0 systems using AJAX) to steal possibly confidential information transmitted from the server back to the client inside the JSON object by taking advantage of the loophole in the browser's Same Origin Policy that does not prohibit JavaScript from one website to be included and executed in the context of another website. An attacker gets the victim to visit his or her malicious page that contains a script tag whose source points to the vulnerable system with a URL that requests a response from the server containing a JSON object with possibly confidential information. The malicious page also contains malicious code to capture the JSON object returned by the server before any other processing on it can take place, typically by overriding the JavaScript function used to create new objects. This hook allows the malicious code to get access to the creation of each object and transmit the possibly sensitive contents of the captured JSON object to the attackers' server. There is nothing in the browser's security model to prevent the attackers' malicious JavaScript code (originating from attacker's domain) to set up an environment (as described above) to intercept a JSON object response (coming from the vulnerable target system's domain), read its contents and transmit to the attackers' controlled site. The same origin policy protects the domain object model (DOM), but not the JSON.
- Cross-Domain Search Timing An attacker initiates cross domain HTTP / GET requests and times the server responses. The timing of these responses may leak important information on what is happening on the server. Browser's same origin policy prevents the attacker from directly reading the server responses (in the absence of any other weaknesses), but does not prevent the attacker from timing the responses to requests that the attacker issued cross domain. For GET requests an attacker could for instance leverage the "img" tag in conjunction with "onload() / onerror()" javascript events. For the POST requests, an attacker could leverage the "iframe" element and leverage the "onload()" event. There is nothing in the current browser security model that prevents an attacker to use these methods to time responses to the attackers' cross domain requests. The timing for these responses leaks information. For instance, if a victim has an active session with their online e-mail account, an attacker could issue search requests in the victim's mailbox. While the attacker is not able to view the responses, based on the timings of the responses, the attacker could ask yes / no questions as to the content of victim's e-mails, who the victim e-mailed, when, etc. This is but one example; There are other scenarios where an attacker could infer potentially sensitive information from cross domain requests by timing the responses while asking the right questions that leak information.
- Cross Site Identification An attacker harvests identifying information about a victim via an active session that the victim's browser has with a social networking site. A victim may have the social networking site open in one tab or perhaps is simply using the "remember me" feature to keep his or her session with the social networking site active. An attacker induces a payload to execute in the victim's browser that transparently to the victim initiates a request to the social networking site (e.g., via available social network site APIs) to retrieve identifying information about a victim. While some of this information may be public, the attacker is able to harvest this information in context and may use it for further attacks on the user (e.g., spear phishing). In one example of an attack, an attacker may post a malicious posting that contains an image with an embedded link. The link actually requests identifying information from the social networking site. A victim who views the malicious posting in his or her browser will have sent identifying information to the attacker, as long as the victim had an active session with the social networking site. There are many other ways in which the attacker may get the payload to execute in the victim's browser mainly by finding a way to hide it in some reputable site that the victim visits. The attacker could also send the link to the victim in an e-mail and trick the victim into clicking on the link. This attack is basically a cross site request forgery attack with two main differences. First, there is no action that is performed on behalf of the user aside from harvesting information. So standard CSRF protection may not work in this situation. Second, what is important in this attack pattern is the nature of the data being harvested, which is identifying information that can be obtained and used in context. This real time harvesting of identifying information can be used as a prelude for launching real time targeted social engineering attacks on the victim.
- Cross Site Request Forgery (aka Session Riding) An attacker crafts malicious web links and distributes them (via web pages, email, etc.), typically in a targeted manner, hoping to induce users to click on the link and execute the malicious action against some third-party application. If successful, the action embedded in the malicious link will be processed and accepted by the targeted application with the users' privilege level. This type of attack leverages the persistence and implicit trust placed in user session cookies by many web applications today. In such an architecture, once the user authenticates to an application and a session cookie is created on the user's system, all following transactions for that session are authenticated using that cookie including potential actions initiated by an attacker and simply "riding" the existing session cookie.
Nessus
NASL family CGI abuses NASL id RT_3_8_15_OR_4_0_8.NASL description According to its self-reported version number, the Best Practical Solutions Request Tracker (RT) running on the remote web server is version 3.x prior to 3.8.15 or version 4.x prior to 4.0.8. It is, therefore, potentially affected by the following vulnerabilities : - Users can inject arbitrary headers into outgoing email provided they have ModifySelf or AdminUser privileges. A remote attacker could exploit this to gain sensitive information or conduct phishing attacks. (CVE-2012-4730) - Any privileged user can create articles in any class due to the application failing to properly verify user access rights. (CVE-2012-4731) - A cross-site request forgery vulnerability exists that allows a remote attacker to hijack the authentication of users for requests that toggle ticket bookmarks. (CVE-2012-4732) - A warning bypass vulnerability exists that allows a last seen 2020-06-01 modified 2020-06-02 plugin id 63065 published 2012-11-27 reporter This script is Copyright (C) 2012-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/63065 title Request Tracker 3.x < 3.8.15 / 4.x < 4.0.8 Multiple Vulnerabilities code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(63065); script_version("1.10"); script_cvs_date("Date: 2018/07/27 18:38:14"); script_cve_id( "CVE-2012-4730", "CVE-2012-4731", "CVE-2012-4732", "CVE-2012-4734", "CVE-2012-4884", "CVE-2012-6578", "CVE-2012-6579", "CVE-2012-6580", "CVE-2012-6581" ); script_bugtraq_id(56290, 56291); script_name(english:"Request Tracker 3.x < 3.8.15 / 4.x < 4.0.8 Multiple Vulnerabilities"); script_summary(english:"Checks the version of Request Tracker."); script_set_attribute(attribute:"synopsis", value: "The remote web server is running a Perl application that is affected by multiple vulnerabilities."); script_set_attribute(attribute:"description", value: "According to its self-reported version number, the Best Practical Solutions Request Tracker (RT) running on the remote web server is version 3.x prior to 3.8.15 or version 4.x prior to 4.0.8. It is, therefore, potentially affected by the following vulnerabilities : - Users can inject arbitrary headers into outgoing email provided they have ModifySelf or AdminUser privileges. A remote attacker could exploit this to gain sensitive information or conduct phishing attacks. (CVE-2012-4730) - Any privileged user can create articles in any class due to the application failing to properly verify user access rights. (CVE-2012-4731) - A cross-site request forgery vulnerability exists that allows a remote attacker to hijack the authentication of users for requests that toggle ticket bookmarks. (CVE-2012-4732) - A warning bypass vulnerability exists that allows a 'confused deputy' attack during the handling of a specially crafted link. (CVE-2012-4734) - A vulnerability exists that allows an attacker to send arbitrary arguments to the command line for the GnuPG client (if GnuPG is enabled), which could result in the creation of arbitrary files with the permissions of the web server. (CVE-2012-4884) - Multiple vulnerabilities exist related to the improper signing or encryption of messages using GnuPG when GnuPG is enabled. (CVE-2012-6578, CVE-2012-6579, CVE-2012-6580, CVE-2012-6581) Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number."); # http://blog.bestpractical.com/2012/10/security-vulnerabilities-in-rt.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2181f5d2"); script_set_attribute(attribute:"solution", value: "Upgrade to Request Tracker 3.8.15 / 4.0.8 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:M/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 exploit is required"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"vuln_publication_date", value:"2012/10/25"); script_set_attribute(attribute:"patch_publication_date", value:"2012/10/26"); script_set_attribute(attribute:"plugin_publication_date", value:"2012/11/27"); script_set_attribute(attribute:"potential_vulnerability", value:"true"); script_set_attribute(attribute:"plugin_type", value:"remote"); script_set_attribute(attribute:"cpe", value:"cpe:/a:bestpractical:rt"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"CGI abuses"); script_copyright(english:"This script is Copyright (C) 2012-2018 Tenable Network Security, Inc."); script_dependencies("rt_detect.nasl"); script_exclude_keys("Settings/disable_cgi_scanning"); script_require_keys("installed_sw/RT", "Settings/ParanoidReport"); script_require_ports("Services/www", 80); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); include("http.inc"); include("install_func.inc"); app = 'RT'; get_install_count(app_name:app, exit_if_zero:TRUE); port = get_http_port(default:80); install = get_single_install(app_name:app, port:port, exit_if_unknown_ver:TRUE); if (report_paranoia < 2) audit(AUDIT_PARANOID); path = install["path"]; version = install["version"]; install_loc = build_url(port:port, qs:path + "/"); ver = split(version, sep:'.', keep:FALSE); for (i=0; i<max_index(ver); i++) ver[i] = int(ver[i]); # Versions 3.8.x / 4.0.x less than 3.8.15 / 4.0.8 are affected. if ( ver[0] == 3 && ver[1] == 8 && ( (ver[2] < 15) || (ver[2] == 15 && version =~ "(rc|pre|alpha|RC|test|CH|beta|preflight)") ) || ( ver[0] == 4 && ver[1] == 0 && ( (ver[2] < 8) || (ver[2] == 8 && version =~ "(rc|pre|alpha|RC|test|CH|beta|preflight)") ) ) ) { set_kb_item(name:'www/'+port+'/XSRF', value:TRUE); if (report_verbosity > 0) { report = '\n URL : ' +install_loc+ '\n Installed version : ' +version+ '\n Fixed version : 3.8.15 / 4.0.8\n'; security_warning(port:port, extra:report); } else security_warning(port); } else audit(AUDIT_WEB_APP_NOT_AFFECTED, app, install_loc, version);NASL family Fedora Local Security Checks NASL id FEDORA_2012-17174.NASL description ---------------------------------------------------------------------- ---------- ChangeLog : - Sun Oct 28 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.15-1 - Upstream update (RH BZ 870407, CVE-2012-4730, CVE-2012-4732, CVE-2012-4734, CVE-2012-4735, CVE-2012-4884). - Sat Oct 6 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.14-1 - Upstream update. - Sat Jun 2 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.13-1 - Upstream update. - Tue May 22 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.12-1 - Upstream update. - Address various CVEs (BZ 824082). 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 2012-11-08 plugin id 62845 published 2012-11-08 reporter This script is Copyright (C) 2012-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/62845 title Fedora 17 : rt3-3.8.15-1.fc17 (2012-17174) NASL family FreeBSD Local Security Checks NASL id FREEBSD_PKG_4B738D54242711E29817C8600054B392.NASL description BestPractical report : All versions of RT are vulnerable to an email header injection attack. Users with ModifySelf or AdminUser can cause RT to add arbitrary headers or content to outgoing mail. Depending on the scrips that are configured, this may be be leveraged for information leakage or phishing. RT 4.0.0 and above and RTFM 2.0.0 and above contain a vulnerability due to lack of proper rights checking, allowing any privileged user to create Articles in any class. All versions of RT with cross-site-request forgery (CSRF) protection (RT 3.8.12 and above, RT 4.0.6 and above, and any instances running the security patches released 2012-05-22) contain a vulnerability which incorrectly allows though CSRF requests which toggle ticket bookmarks. All versions of RT are vulnerable to a confused deputy attack on the user. While not strictly a CSRF attack, users who are not logged in who are tricked into following a malicious link may, after supplying their credentials, be subject to an attack which leverages their credentials to modify arbitrary state. While users who were logged in would have observed the CSRF protection page, users who were not logged in receive no such warning due to the intervening login process. RT has been extended to notify users of pending actions during the login process. RT 3.8.0 and above are susceptible to a number of vulnerabilities concerning improper signing or encryption of messages using GnuPG; if GnuPG is not enabled, none of the following affect you. last seen 2020-06-01 modified 2020-06-02 plugin id 62793 published 2012-11-02 reporter This script is Copyright (C) 2012-2018 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/62793 title FreeBSD : RT -- Multiple Vulnerabilities (4b738d54-2427-11e2-9817-c8600054b392) NASL family Fedora Local Security Checks NASL id FEDORA_2012-17218.NASL description ---------------------------------------------------------------------- ---------- ChangeLog : - Sun Oct 28 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.15-1 - Upstream update (RH BZ 870407, CVE-2012-4730, CVE-2012-4732, CVE-2012-4734, CVE-2012-4735, CVE-2012-4884). - Sat Oct 6 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.14-1 - Upstream update. - Sat Jun 2 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.13-1 - Upstream update. - Tue May 22 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.12-1 - Upstream update. - Address various CVEs (BZ 824082). - Thu Feb 2 2012 Ralf Corsepius <corsepiu at fedoraproject.org> - 3.8.11-7 - Fix shebangs. - Make testsuite files executable (enables rpm last seen 2020-03-17 modified 2012-11-08 plugin id 62846 published 2012-11-08 reporter This script is Copyright (C) 2012-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/62846 title Fedora 16 : rt3-3.8.15-1.fc16 (2012-17218) NASL family Debian Local Security Checks NASL id DEBIAN_DSA-2567.NASL description Several vulnerabilities were discovered in Request Tracker (RT), an issue tracking system. - CVE-2012-4730 Authenticated users can add arbitrary headers or content to mail generated by RT. - CVE-2012-4732 A CSRF vulnerability may allow attackers to toggle ticket bookmarks. - CVE-2012-4734 If users follow a crafted URI and log in to RT, they may trigger actions which would ordinarily blocked by the CSRF prevention logic. - CVE-2012-6578, CVE-2012-6579, CVE-2012-6580, CVE-2012-6581 Several different vulnerabilities in GnuPG processing allow attackers to cause RT to improperly sign outgoing email. - CVE-2012-4884 If GnuPG support is enabled, authenticated users can create arbitrary files as the web server user, which may enable arbitrary code execution. Please note that if you run request-tracker3.8 under the Apache web server, you must stop and start Apache manually. The last seen 2020-03-17 modified 2012-10-29 plugin id 62722 published 2012-10-29 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/62722 title Debian DSA-2567-1 : request-tracker3.8 - several vulnerabilities NASL family Fedora Local Security Checks NASL id FEDORA_2012-17143.NASL description ---------------------------------------------------------------------- ---------- 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 2012-11-08 plugin id 62844 published 2012-11-08 reporter This script is Copyright (C) 2012-2020 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/62844 title Fedora 18 : rt3-3.8.15-1.fc18 (2012-17143)