Vulnerabilities > CVE-2011-0439 - Cross-Site Scripting vulnerability in Mahara

047910
CVSS 4.3 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
NONE
network
mahara
CWE-79
nessus

Summary

Cross-site scripting (XSS) vulnerability in Mahara 1.2.x before 1.2.7 and 1.3.x before 1.3.4 allows remote attackers to inject arbitrary web script or HTML via the Pieforms select box.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • 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.
  • Embedding Scripts in Non-Script Elements
    This attack is a form of Cross-Site Scripting (XSS) where malicious scripts are embedded in elements that are not expected to host scripts such as image tags (<img>), comments in XML documents (< !-CDATA->), etc. These tags may not be subject to the same input validation, output validation, and other content filtering and checking routines, so this can create an opportunity for an attacker to tunnel through the application's elements and launch a XSS attack through other elements. As with all remote attacks, it is important to differentiate the ability to launch an attack (such as probing an internal network for unpatched servers) and the ability of the remote attacker to collect and interpret the output of said attack.
  • Embedding Scripts within Scripts
    An attack of this type exploits a programs' vulnerabilities that are brought on by allowing remote hosts to execute scripts. The attacker leverages this capability to execute scripts to execute his/her own script by embedding it within other scripts that the target software is likely to execute. The attacker must have the ability to inject script into script that is likely to be executed. If this is done, then the attacker can potentially launch a variety of probes and attacks against the web server's local environment, in many cases the so-called DMZ, back end resources the web server can communicate with, and other hosts. With the proliferation of intermediaries, such as Web App Firewalls, network devices, and even printers having JVMs and Web servers, there are many locales where an attacker can inject malicious scripts. Since this attack pattern defines scripts within scripts, there are likely privileges to execute said attack on the host. Of course, these attacks are not solely limited to the server side, client side scripts like Ajax and client side JavaScript can contain malicious scripts as well. In general all that is required is for there to be sufficient privileges to execute a script, but not protected against writing.
  • Cross-Site Scripting in Error Pages
    An attacker distributes a link (or possibly some other query structure) with a request to a third party web server that is malformed and also contains a block of exploit code in order to have the exploit become live code in the resulting error page. When the third party web server receives the crafted request and notes the error it then creates an error message that echoes the malformed message, including the exploit. Doing this converts the exploit portion of the message into to valid language elements that are executed by the viewing browser. When a victim executes the query provided by the attacker the infected error message error message is returned including the exploit code which then runs in the victim's browser. XSS can result in execution of code as well as data leakage (e.g. session cookies can be sent to the attacker). This type of attack is especially dangerous since the exploit appears to come from the third party web server, who the victim may trust and hence be more vulnerable to deception.
  • Cross-Site Scripting Using Alternate Syntax
    The attacker uses alternate forms of keywords or commands that result in the same action as the primary form but which may not be caught by filters. For example, many keywords are processed in a case insensitive manner. If the site's web filtering algorithm does not convert all tags into a consistent case before the comparison with forbidden keywords it is possible to bypass filters (e.g., incomplete black lists) by using an alternate case structure. For example, the "script" tag using the alternate forms of "Script" or "ScRiPt" may bypass filters where "script" is the only form tested. Other variants using different syntax representations are also possible as well as using pollution meta-characters or entities that are eventually ignored by the rendering engine. The attack can result in the execution of otherwise prohibited functionality.

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DSA-2206.NASL
descriptionTwo security vulnerabilities have been discovered in Mahara, a fully featured electronic portfolio, weblog, resume builder and social networking system : - CVE-2011-0439 A security review commissioned by a Mahara user discovered that Mahara processes unsanitized input which can lead to cross-site scripting (XSS). - CVE-2011-0440 Mahara Developers discovered that Mahara doesn
last seen2020-03-17
modified2011-03-30
plugin id53211
published2011-03-30
reporterThis script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/53211
titleDebian DSA-2206-1 : mahara - 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-2206. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(53211);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2011-0439", "CVE-2011-0440");
  script_bugtraq_id(47033);
  script_xref(name:"DSA", value:"2206");

  script_name(english:"Debian DSA-2206-1 : mahara - 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:
"Two security vulnerabilities have been discovered in Mahara, a fully
featured electronic portfolio, weblog, resume builder and social
networking system :

  - CVE-2011-0439
    A security review commissioned by a Mahara user
    discovered that Mahara processes unsanitized input which
    can lead to cross-site scripting (XSS).

  - CVE-2011-0440
    Mahara Developers discovered that Mahara doesn't check
    the session key under certain circumstances which can be
    exploited as cross-site request forgery (CSRF) and can
    lead to the deletion of blogs."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/mahara"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2011/dsa-2206"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the mahara package.

For the old stable distribution (lenny) these problems have been fixed
in version 1.0.4-4+lenny8.

For the stable distribution (squeeze) these problems have been fixed
in version 1.2.6-2+squeeze1."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/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:debian:debian_linux:mahara");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:5.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2011/03/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2011/03/30");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2011-2020 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:"5.0", prefix:"mahara", reference:"1.0.4-4+lenny8")) flag++;
if (deb_check(release:"6.0", prefix:"mahara", reference:"1.2.6-2+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"mahara-apache2", reference:"1.2.6-2+squeeze1")) flag++;
if (deb_check(release:"6.0", prefix:"mahara-mediaplayer", reference:"1.2.6-2+squeeze1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");

Seebug

bulletinFamilyexploit
descriptionBugtraq ID: 47033 CVE ID:CVE-2011-0439 Mahara是一款开源的电子文件夹,网络日志,履历表生成器和社会化网络系统。 Mahara存在多个输入验证错误,攻击者可以利用漏洞获得敏感信息或劫持目标用户会话。 -应用程序存在跨站请求伪造漏洞,攻击者可以构建恶意链接,诱使管理员访问,删除博客日志。 -通过Pieform选择框选项传递的输入在显示给用户之前缺少正确过滤,可被利用注入任意HTML和脚本代码,导致恶意数据查看时在目标用户浏览器上执行恶意代码。 Mahara Mahara 1.3.3 Mahara Mahara 1.2.5 Mahara Mahara 1.2.4 Mahara Mahara 1.2.3 Mahara Mahara 1.3.2 Mahara Mahara 1.3.1 Mahara Mahara 1.3.0 Mahara Mahara 1.2.6 Mahara Mahara 1.2.5 Mahara Mahara 1.2.2 Mahara Mahara 1.2.1 Mahara Mahara 1.2.0 厂商解决方案 Mahara 1.3.4和1.2.7已经修复此漏洞,建议用户下载使用: http://mahara.org/interaction/forum/topic.php?id=3208
idSSV:20408
last seen2017-11-19
modified2011-03-29
published2011-03-29
reporterRoot
titleMahara跨站脚本和跨站请求伪造漏洞