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.

Various 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.

The remote Oracle Linux 5 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2012-0103 advisory.

    - patch for CVE-2010-2813 was not complete
    - fix: CVE-2010-1637 : Port-scans via non-standard POP3 server ports in       Mail Fetch plugin
    - fix: CVE-2010-2813 : DoS (disk space consumption) by random IMAP login       attempts with 8-bit characters in the password
    - fix: CVE-2010-4554 : Prone to clickjacking attacks
    - fix: CVE-2010-4555 : Multiple XSS flaws
    - fix: CVE-2011-2752 : CRLF injection vulnerability

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

fixes :

  - CVE-2011-2023 : Messages containing style tags with     malicious script attributes were being displayed without     being sanitized

    - CVE-2010-4555 : An attacker could use one of several       small bugs in SquirrelMail to inject malicious script       into various pages or alter the contents of user       preferences

    - CVE-2010-4554 : SquirrelMail is vulnerable to       clickjacking attacks wherein the entire application       can be loaded in a frame that could overlay other       elements on top of SquirrelMail

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.

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.

The remote host is running a version of Mac OS X 10.6 that does not have Security Update 2012-001 applied. This update contains multiple security-related fixes for the following components :

  - Apache
  - ATS
  - ColorSync
  - CoreAudio
  - CoreMedia
  - CoreText
  - curl
  - Data Security
  - dovecot
  - filecmds
  - libresolv
  - libsecurity
  - OpenGL
  - PHP
  - QuickTime
  - SquirrelMail
  - Subversion
  - Tomcat
  - X11

ID	Name	Product	Family	Published	Updated	Severity
57864	CentOS 4 / 5 : squirrelmail (CESA-2012:0103)	Nessus	CentOS Local Security Checks	2/9/2012	1/4/2021	medium
57870	RHEL 4 / 5 : squirrelmail (RHSA-2012:0103)	Nessus	Red Hat Local Security Checks	2/9/2012	1/14/2021	medium
55776	Debian DSA-2291-1 : squirrelmail - various vulnerabilities	Nessus	Debian Local Security Checks	8/9/2011	1/11/2021	medium
68452	Oracle Linux 5 : squirrelmail (ELSA-2012-0103)	Nessus	Oracle Linux Local Security Checks	7/12/2013	10/22/2024	medium
55659	Fedora 14 : squirrelmail-1.4.22-2.fc14 (2011-9309)	Nessus	Fedora Local Security Checks	7/25/2011	1/11/2021	medium
55660	Fedora 15 : squirrelmail-1.4.22-2.fc15 (2011-9311)	Nessus	Fedora Local Security Checks	7/25/2011	1/11/2021	medium
61240	Scientific Linux Security Update : squirrelmail on SL4.x, SL5.x (20120208)	Nessus	Scientific Linux Local Security Checks	8/1/2012	1/14/2021	medium
57798	Mac OS X Multiple Vulnerabilities (Security Update 2012-001) (BEAST)	Nessus	MacOS X Local Security Checks	2/2/2012	5/28/2024	critical

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