Vulnerabilities > CVE-2012-3529 - Information Exposure vulnerability in Typo3

047910
CVSS 3.5 - LOW
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
SINGLE
Confidentiality impact
PARTIAL
Integrity impact
NONE
Availability impact
NONE
network
typo3
CWE-200
nessus
NVD
Published: 2012-09-05
Updated: 2017-08-29

Summary

The configuration module in the backend in TYPO3 4.5.x before 4.5.19, 4.6.x before 4.6.12 and 4.7.x before 4.7.4 allows remote authenticated backend users to obtain the encryption key via unspecified vectors.

Vulnerable Configurations

Part Description Count
Application
Typo3
38

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

NASL familyDebian Local Security Checks
NASL idDEBIAN_DSA-2537.NASL
descriptionSeveral vulnerabilities were discovered in TYPO3, a content management system. - CVE-2012-3527 An insecure call to unserialize in the help system enables arbitrary code execution by authenticated users. - CVE-2012-3528 The TYPO3 backend contains several cross-site scripting vulnerabilities. - CVE-2012-3529 Authenticated users who can access the configuration module can obtain the encryption key, allowing them to escalate their privileges. - CVE-2012-3530 The RemoveXSS HTML sanitizer did not remove several HTML5 JavaScript, thus failing to mitigate the impact of cross-site scripting vulnerabilities.
last seen2020-03-17
modified2012-08-31
plugin id61735
published2012-08-31
reporterThis script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
sourcehttps://www.tenable.com/plugins/nessus/61735
titleDebian DSA-2537-1 : typo3-src - 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-2537. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(61735);
  script_version("1.9");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12");

  script_cve_id("CVE-2012-3527", "CVE-2012-3528", "CVE-2012-3529", "CVE-2012-3530", "CVE-2012-3531");
  script_bugtraq_id(55052);
  script_xref(name:"DSA", value:"2537");

  script_name(english:"Debian DSA-2537-1 : typo3-src - 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 were discovered in TYPO3, a content management
system.

  - CVE-2012-3527
    An insecure call to unserialize in the help system
    enables arbitrary code execution by authenticated users.

  - CVE-2012-3528
    The TYPO3 backend contains several cross-site scripting
    vulnerabilities.

  - CVE-2012-3529
    Authenticated users who can access the configuration
    module can obtain the encryption key, allowing them to
    escalate their privileges.

  - CVE-2012-3530
    The RemoveXSS HTML sanitizer did not remove several
    HTML5 JavaScript, thus failing to mitigate the impact of
    cross-site scripting vulnerabilities."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2012-3527"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2012-3528"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2012-3529"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/CVE-2012-3530"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze/typo3-src"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2012/dsa-2537"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the typo3-src packages.

For the stable distribution (squeeze), these problems have been fixed
in version 4.3.9+dfsg1-1+squeeze5."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:S/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:debian:debian_linux:typo3-src");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2012/08/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/08/31");
  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:"typo3", reference:"4.3.9+dfsg1-1+squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"typo3-database", reference:"4.3.9+dfsg1-1+squeeze5")) flag++;
if (deb_check(release:"6.0", prefix:"typo3-src-4.3", reference:"4.3.9+dfsg1-1+squeeze5")) 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");

References