A cross-site scripting (XSS) flaw was found in the CUPS web interface.
An attacker could use this flaw to perform a cross-site scripting attack against users of the CUPS web interface. (CVE-2014-2856)

It was discovered that CUPS allowed certain users to create symbolic links in certain directories under /var/cache/cups/. A local user with the 'lp' group privileges could use this flaw to read the contents of arbitrary files on the system or, potentially, escalate their privileges on the system. (CVE-2014-3537 , CVE-2014-5029 , CVE-2014-5030 , CVE-2014-5031)

According to its banner, the version of CUPS installed on the remote host is prior to version 1.7.2. It is, therefore, affected by a cross-site scripting vulnerability.

A flaw exists with the is_path_absolute function within the scheduler/client.cscript. This could allow a context-dependent attacker, with a specially crafted request, to execute arbitrary script code within the browser and server trust relationship.

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

This update fixes possible cross-site scripting issue in CUPS web interface and includes some bug fixes from Fedora 20.

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.

Upstream bug-fix release, which among others fixes possible cross-site scripting issue in CUPS web interface.

  - https://cups.org/blog.php?L717

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.

Updated cups packages fix security vulnerability :

Cross-site scripting (XSS) vulnerability in scheduler/client.c in Common Unix Printing System (CUPS) before 1.7.2 allows remote attackers to inject arbitrary web script or HTML via the URL path, related to the is_path_absolute function (CVE-2014-2856).

The remote Oracle Linux 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2014-1388 advisory.

    - Applied upstream patch to fix CVE-2014-5029 (bug #1122600),       CVE-2014-5030 (bug #1128764), CVE-2014-5031 (bug #1128767).
    - fix patch for CVE-2014-3537 (bug #1117794)
    - CVE-2014-2856: cross-site scripting flaw (bug #1117798)
    - CVE-2014-3537: insufficient checking leads to privilege escalation (bug #1117794)

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.

Updated cups packages that fix multiple security issues and several bugs are now available for Red Hat Enterprise Linux 6.

Red Hat Product Security 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.

CUPS provides a portable printing layer for Linux, UNIX, and similar operating systems.

A cross-site scripting (XSS) flaw was found in the CUPS web interface.
An attacker could use this flaw to perform a cross-site scripting attack against users of the CUPS web interface. (CVE-2014-2856)

It was discovered that CUPS allowed certain users to create symbolic links in certain directories under /var/cache/cups/. A local user with the 'lp' group privileges could use this flaw to read the contents of arbitrary files on the system or, potentially, escalate their privileges on the system. (CVE-2014-3537, CVE-2014-5029, CVE-2014-5030, CVE-2014-5031)

The CVE-2014-3537 issue was discovered by Francisco Alonso of Red Hat Product Security.

These updated cups packages also include several bug fixes. Space precludes documenting all of these changes in this advisory. Users are directed to the Red Hat Enterprise Linux 6.6 Technical Notes, linked to in the References section, for information on the most significant of these changes.

All cups users are advised to upgrade to these updated packages, which contain backported patches to correct these issues. After installing this update, the cupsd daemon will be restarted automatically.

The remote Solaris system is missing necessary patches to address security updates :

  - Cross-site scripting (XSS) vulnerability in     scheduler/client.c in Common Unix Printing System (CUPS)     before 1.7.2 allows remote attackers to inject arbitrary     web script or HTML via the URL path, related to the     is_path_absolute function. (CVE-2014-2856)

ID	名稱	產品	系列	已發布	已更新	嚴重性
78781	Amazon Linux AMI : cups (ALAS-2014-438)	Nessus	Amazon Linux Local Security Checks	2014/11/3	2018/4/18	medium
73734	CUPS < 1.7.2 is_path_absolute Function XSS	Nessus	Misc.	2014/4/28	2018/11/15	medium
73746	Fedora 19 : cups-1.6.4-5.fc19 (2014-4384)	Nessus	Fedora Local Security Checks	2014/4/29	2021/1/11	medium
73774	Fedora 20 : cups-1.7.2-1.fc20 (2014-5079)	Nessus	Fedora Local Security Checks	2014/4/30	2021/1/11	medium
74070	Mandriva Linux Security Advisory : cups (MDVSA-2014:091)	Nessus	Mandriva Local Security Checks	2014/5/19	2021/1/6	medium
78522	Oracle Linux 6 : cups (ELSA-2014-1388)	Nessus	Oracle Linux Local Security Checks	2014/10/17	2024/10/22	medium
79177	CentOS 6 : cups (CESA-2014:1388)	Nessus	CentOS Local Security Checks	2014/11/12	2021/1/4	medium
80597	Oracle Solaris Third-Party Patch Update : cups (cve_2014_2856_cross_site)	Nessus	Solaris Local Security Checks	2015/1/19	2021/1/14	medium

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