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.

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).

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.

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.

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.

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)

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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)

Note that Nessus relies on the presence of the package as reported by the vendor.

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

  - Revert change to whitelist /rss/ resources, as this was     not used upstream.

  - More STR #4461 fixes from upstream: make rss feeds     world-readable, but cachedir private.

  - Fix icon display in web interface during server restart     (STR #4475).

  - Fixes for upstream patch for STR #4461: allow /rss/     requests for files we created.

  - Use upstream patch for STR #4461.

  - Applied upstream patch to fix CVE-2014-5029 (bug     #1122600), CVE-2014-5030 (bug #1128764), CVE-2014-5031     (bug #1128767).

  - Fix conf/log file reading for authenticated users (STR     #4461).

  - Fix CGI handling (STR #4454, bug #1120419).

  - 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)

  - Removed package description changes.

  - Applied patch to fix 'Bad request' errors as a result of     adding in httpSetTimeout (STR #4440, also part of svn     revision 9967).

  - Fixed timeout issue with cupsd reading when there is no     data ready (bug #1110045).

  - Fixed synconclose patch to avoid 'too many arguments for     format' warning.

  - Fixed settimeout patch to include math.h for fmod     declaration.

  - Fixed typo preventing web interface from changing driver     (bug #1104483, STR #3601).

  - Fixed SyncOnClose patch (bug #984883).

  - Use upstream patch to avoid replaying GSS credentials     (bug #1040293).

  - Prevent BrowsePoll problems across suspend/resume (bug     #769292) :

  - Eliminate indefinite wait for response (svn revision     9688).

  - Backported httpSetTimeout API function from CUPS 1.5 and     use it in the ipp backend so that we wait indefinitely     until the printer responds, we get a hard error, or the     job is cancelled.

  - cups-polld: reconnect on error.

  - Added new SyncOnClose directive to use fsync after     altering configuration files: defaults to 'Yes'. Adjust     in cupsd.conf (bug #984883).

  - Fix cupsctl man page typo (bug #1011076).

  - Use more portable rpm specfile syntax for conditional     php building (bug #988598).

  - Fix SetEnv directive in cupsd.conf (bug #986495).

  - Fix 'collection' attribute sending (bug #978387).

  - Prevent format_log segfault (bug #971079).

  - Prevent stringpool corruption (bug #884851).

  - Don't crash when job queued for printer that times out     (bug #855431).

  - Upstream patch for broken multipart handling (bug     #852846).

  - Install /etc/cron.daily/cups with correct permissions     (bug #1012482).

  - Fixes for jobs with multiple files and multiple formats     (bug #972242).

  - Applied patch to fix CVE-2012-5519 (privilege escalation     for users in SystemGroup or with equivalent polkit     permission). This prevents HTTP PUT requests with paths     under /admin/conf/ other than that for cupsd.conf, and     also prevents such requests altering certain     configuration directives such as PageLog and FileDevice     (bug #875898).

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)

Alex Korobkin discovered that the CUPS web interface incorrectly protected against cross-site scripting (XSS) attacks. If an authenticated user were tricked into visiting a malicious website while logged into CUPS, a remote attacker could modify the CUPS configuration and possibly steal confidential data.

Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
73734	CUPS < 1.7.2 is_path_absolute Function XSS	Nessus	Misc.	2014/4/28	2018/11/15	medium
74070	Mandriva Linux Security Advisory : cups (MDVSA-2014:091)	Nessus	Mandriva Local Security Checks	2014/5/19	2021/1/6	medium
79177	CentOS 6 : cups (CESA-2014:1388)	Nessus	CentOS Local Security Checks	2014/11/12	2021/1/4	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
78522	Oracle Linux 6 : cups (ELSA-2014-1388)	Nessus	Oracle Linux Local Security Checks	2014/10/17	2024/10/22	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
78405	RHEL 6 : cups (RHSA-2014:1388)	Nessus	Red Hat Local Security Checks	2014/10/14	2021/1/14	medium
218137	Linux Distros Unpatched Vulnerability : CVE-2014-2856	Nessus	Misc.	2025/3/4	2026/1/28	medium
79550	OracleVM 3.3 : cups (OVMSA-2014-0035)	Nessus	OracleVM Local Security Checks	2014/11/26	2021/1/4	high
78781	Amazon Linux AMI : cups (ALAS-2014-438)	Nessus	Amazon Linux Local Security Checks	2014/11/3	2018/4/18	medium
73709	Ubuntu 10.04 LTS / 12.04 LTS / 12.10 / 13.10 : cups vulnerability (USN-2172-1)	Nessus	Ubuntu Local Security Checks	2014/4/25	2021/1/19	medium

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