Vulnerabilities > CVE-2011-2752 - Code Injection vulnerability in Squirrelmail

047910
CVSS 5.8 - MEDIUM
Attack vector
NETWORK
Attack complexity
MEDIUM
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
squirrelmail
CWE-94
nessus
NVD
Published: 2011-07-17
Updated: 2017-08-29

Summary

CRLF injection vulnerability in SquirrelMail 1.4.21 and earlier allows remote attackers to modify or add preference values via a \n (newline) character, a different vulnerability than CVE-2010-4555.

Vulnerable Configurations

Part Description Count
Application
Squirrelmail
100

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 familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2012-0103.NASL
    descriptionAn updated squirrelmail package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. SquirrelMail is a standards-based webmail package written in PHP. A cross-site scripting (XSS) flaw was found in the way SquirrelMail performed the sanitization of HTML style tag content. A remote attacker could use this flaw to send a specially crafted Multipurpose Internet Mail Extensions (MIME) message that, when opened by a victim, would lead to arbitrary web script execution in the context of their SquirrelMail session. (CVE-2011-2023) Multiple cross-site scripting (XSS) flaws were found in SquirrelMail. A remote attacker could possibly use these flaws to execute arbitrary web script in the context of a victim
    last seen2020-06-01
    modified2020-06-02
    plugin id57864
    published2012-02-09
    reporterThis script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/57864
    titleCentOS 4 / 5 : squirrelmail (CESA-2012:0103)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Red Hat Security Advisory RHSA-2012:0103 and 
# CentOS Errata and Security Advisory 2012:0103 respectively.
#

include("compat.inc");

if (description)
{
  script_id(57864);
  script_version("1.11");
  script_cvs_date("Date: 2020/01/07");

  script_cve_id("CVE-2010-1637", "CVE-2010-2813", "CVE-2010-4554", "CVE-2010-4555", "CVE-2011-2023", "CVE-2011-2752", "CVE-2011-2753");
  script_bugtraq_id(40291, 42399, 48648);
  script_xref(name:"RHSA", value:"2012:0103");

  script_name(english:"CentOS 4 / 5 : squirrelmail (CESA-2012:0103)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote CentOS host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"An updated squirrelmail package that fixes several security issues is
now available for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

SquirrelMail is a standards-based webmail package written in PHP.

A cross-site scripting (XSS) flaw was found in the way SquirrelMail
performed the sanitization of HTML style tag content. A remote
attacker could use this flaw to send a specially crafted Multipurpose
Internet Mail Extensions (MIME) message that, when opened by a victim,
would lead to arbitrary web script execution in the context of their
SquirrelMail session. (CVE-2011-2023)

Multiple cross-site scripting (XSS) flaws were found in SquirrelMail.
A remote attacker could possibly use these flaws to execute arbitrary
web script in the context of a victim's SquirrelMail session.
(CVE-2010-4555)

An input sanitization flaw was found in the way SquirrelMail handled
the content of various HTML input fields. A remote attacker could use
this flaw to alter user preference values via a newline character
contained in the input for these fields. (CVE-2011-2752)

It was found that the SquirrelMail Empty Trash and Index Order pages
did not protect against Cross-Site Request Forgery (CSRF) attacks. If
a remote attacker could trick a user, who was logged into
SquirrelMail, into visiting a specially crafted URL, the attacker
could empty the victim's trash folder or alter the ordering of the
columns on the message index page. (CVE-2011-2753)

SquirrelMail was allowed to be loaded into an HTML sub-frame, allowing
a remote attacker to perform a clickjacking attack against logged in
users and possibly gain access to sensitive user data. With this
update, the SquirrelMail main frame can only be loaded into the top
most browser frame. (CVE-2010-4554)

A flaw was found in the way SquirrelMail handled failed log in
attempts. A user preference file was created when attempting to log in
with a password containing an 8-bit character, even if the username
was not valid. A remote attacker could use this flaw to eventually
consume all hard disk space on the target SquirrelMail server.
(CVE-2010-2813)

A flaw was found in the SquirrelMail Mail Fetch plug-in. If an
administrator enabled this plug-in, a SquirrelMail user could use this
flaw to port scan the local network the server was on. (CVE-2010-1637)

Users of SquirrelMail should upgrade to this updated package, which
contains backported patches to correct these issues."
  );
  # https://lists.centos.org/pipermail/centos-announce/2012-February/018422.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?7450a5dc"
  );
  # https://lists.centos.org/pipermail/centos-announce/2012-February/018423.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?585ff16c"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected squirrelmail package."
  );
  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:"cvss_score_source", value:"CVE-2011-2753");
  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:centos:centos:squirrelmail");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/06/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/02/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/02/09");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  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:"CentOS Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/CentOS/release");
if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
os_ver = os_ver[1];
if (! preg(pattern:"^(4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 4.x / 5.x", "CentOS " + os_ver);

if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);


flag = 0;
if (rpm_check(release:"CentOS-4", cpu:"i386", reference:"squirrelmail-1.4.8-18.el4.centos")) flag++;
if (rpm_check(release:"CentOS-4", cpu:"x86_64", reference:"squirrelmail-1.4.8-18.el4.centos")) flag++;

if (rpm_check(release:"CentOS-5", reference:"squirrelmail-1.4.8-5.el5.centos.13")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squirrelmail");
}
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2012-0103.NASL
    descriptionFrom Red Hat Security Advisory 2012:0103 : An updated squirrelmail package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. SquirrelMail is a standards-based webmail package written in PHP. A cross-site scripting (XSS) flaw was found in the way SquirrelMail performed the sanitization of HTML style tag content. A remote attacker could use this flaw to send a specially crafted Multipurpose Internet Mail Extensions (MIME) message that, when opened by a victim, would lead to arbitrary web script execution in the context of their SquirrelMail session. (CVE-2011-2023) Multiple cross-site scripting (XSS) flaws were found in SquirrelMail. A remote attacker could possibly use these flaws to execute arbitrary web script in the context of a victim
    last seen2020-06-01
    modified2020-06-02
    plugin id68452
    published2013-07-12
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/68452
    titleOracle Linux 4 / 5 : squirrelmail (ELSA-2012-0103)
    code
    #
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Red Hat Security Advisory RHSA-2012:0103 and 
# Oracle Linux Security Advisory ELSA-2012-0103 respectively.
#

include("compat.inc");

if (description)
{
  script_id(68452);
  script_version("1.8");
  script_cvs_date("Date: 2019/09/30 10:58:17");

  script_cve_id("CVE-2010-1637", "CVE-2010-2813", "CVE-2010-4554", "CVE-2010-4555", "CVE-2011-2023", "CVE-2011-2752", "CVE-2011-2753");
  script_bugtraq_id(40291, 42399, 48648);
  script_xref(name:"RHSA", value:"2012:0103");

  script_name(english:"Oracle Linux 4 / 5 : squirrelmail (ELSA-2012-0103)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Oracle Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"From Red Hat Security Advisory 2012:0103 :

An updated squirrelmail package that fixes several security issues is
now available for Red Hat Enterprise Linux 4 and 5.

The Red Hat Security Response Team has rated this update as having
moderate security impact. Common Vulnerability Scoring System (CVSS)
base scores, which give detailed severity ratings, are available for
each vulnerability from the CVE links in the References section.

SquirrelMail is a standards-based webmail package written in PHP.

A cross-site scripting (XSS) flaw was found in the way SquirrelMail
performed the sanitization of HTML style tag content. A remote
attacker could use this flaw to send a specially crafted Multipurpose
Internet Mail Extensions (MIME) message that, when opened by a victim,
would lead to arbitrary web script execution in the context of their
SquirrelMail session. (CVE-2011-2023)

Multiple cross-site scripting (XSS) flaws were found in SquirrelMail.
A remote attacker could possibly use these flaws to execute arbitrary
web script in the context of a victim's SquirrelMail session.
(CVE-2010-4555)

An input sanitization flaw was found in the way SquirrelMail handled
the content of various HTML input fields. A remote attacker could use
this flaw to alter user preference values via a newline character
contained in the input for these fields. (CVE-2011-2752)

It was found that the SquirrelMail Empty Trash and Index Order pages
did not protect against Cross-Site Request Forgery (CSRF) attacks. If
a remote attacker could trick a user, who was logged into
SquirrelMail, into visiting a specially crafted URL, the attacker
could empty the victim's trash folder or alter the ordering of the
columns on the message index page. (CVE-2011-2753)

SquirrelMail was allowed to be loaded into an HTML sub-frame, allowing
a remote attacker to perform a clickjacking attack against logged in
users and possibly gain access to sensitive user data. With this
update, the SquirrelMail main frame can only be loaded into the top
most browser frame. (CVE-2010-4554)

A flaw was found in the way SquirrelMail handled failed log in
attempts. A user preference file was created when attempting to log in
with a password containing an 8-bit character, even if the username
was not valid. A remote attacker could use this flaw to eventually
consume all hard disk space on the target SquirrelMail server.
(CVE-2010-2813)

A flaw was found in the SquirrelMail Mail Fetch plug-in. If an
administrator enabled this plug-in, a SquirrelMail user could use this
flaw to port scan the local network the server was on. (CVE-2010-1637)

Users of SquirrelMail should upgrade to this updated package, which
contains backported patches to correct these issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2012-February/002597.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://oss.oracle.com/pipermail/el-errata/2012-February/002598.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected squirrelmail package."
  );
  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 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:oracle:linux:squirrelmail");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:4");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:5");

  script_set_attribute(attribute:"vuln_publication_date", value:"2010/06/22");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/02/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2013/07/12");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Oracle Linux Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^(4|5)([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 4 / 5", "Oracle Linux " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Oracle Linux", cpu);

flag = 0;
if (rpm_check(release:"EL4", reference:"squirrelmail-1.4.8-18.0.1.el4")) flag++;

if (rpm_check(release:"EL5", reference:"squirrelmail-1.4.8-5.0.1.el5_7.13")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "squirrelmail");
}
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-2291.NASL
    descriptionVarious vulnerabilities have been found in SquirrelMail, a webmail application. The Common Vulnerabilities and Exposures project identifies the following vulnerabilities : - CVE-2010-4554 SquirrelMail did not prevent page rendering inside a third-party HTML frame, which makes it easier for remote attackers to conduct clickjacking attacks via a crafted website. - CVE-2010-4555, CVE-2011-2752, CVE-2011-2753 Multiple small bugs in SquirrelMail allowed an attacker to inject malicious script into various pages or alter the contents of user preferences. - CVE-2011-2023 It was possible to inject arbitrary web script or HTML via a crafted STYLE element in an HTML part of an e-mail message.
    last seen2020-03-17
    modified2011-08-09
    plugin id55776
    published2011-08-09
    reporterThis script is Copyright (C) 2011-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/55776
    titleDebian DSA-2291-1 : squirrelmail - various vulnerabilities
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20120208_SQUIRRELMAIL_ON_SL4_X.NASL
    descriptionSquirrelMail is a standards-based webmail package written in PHP. A cross-site scripting (XSS) flaw was found in the way SquirrelMail performed the sanitization of HTML style tag content. A remote attacker could use this flaw to send a specially crafted Multipurpose Internet Mail Extensions (MIME) message that, when opened by a victim, would lead to arbitrary web script execution in the context of their SquirrelMail session. (CVE-2011-2023) Multiple cross-site scripting (XSS) flaws were found in SquirrelMail. A remote attacker could possibly use these flaws to execute arbitrary web script in the context of a victim
    last seen2020-03-18
    modified2012-08-01
    plugin id61240
    published2012-08-01
    reporterThis script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/61240
    titleScientific Linux Security Update : squirrelmail on SL4.x, SL5.x (20120208)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2012-0103.NASL
    descriptionAn updated squirrelmail package that fixes several security issues is now available for Red Hat Enterprise Linux 4 and 5. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section. SquirrelMail is a standards-based webmail package written in PHP. A cross-site scripting (XSS) flaw was found in the way SquirrelMail performed the sanitization of HTML style tag content. A remote attacker could use this flaw to send a specially crafted Multipurpose Internet Mail Extensions (MIME) message that, when opened by a victim, would lead to arbitrary web script execution in the context of their SquirrelMail session. (CVE-2011-2023) Multiple cross-site scripting (XSS) flaws were found in SquirrelMail. A remote attacker could possibly use these flaws to execute arbitrary web script in the context of a victim
    last seen2020-04-16
    modified2012-02-09
    plugin id57870
    published2012-02-09
    reporterThis script is Copyright (C) 2012-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/57870
    titleRHEL 4 / 5 : squirrelmail (RHSA-2012:0103)

Redhat

advisories
rhsa
idRHSA-2012:0103
rpms
  • squirrelmail-0:1.4.8-18.el4
  • squirrelmail-0:1.4.8-5.el5_7.13

References