ID CVE-2018-11781
Summary Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax.
References
Vulnerable Configurations
  • Apache Software Foundation SpamAssassin
    cpe:2.3:a:apache:spamassassin
  • Apache Software Foundation SpamAssassin 3.0.1
    cpe:2.3:a:apache:spamassassin:3.0.1
  • Apache Software Foundation SpamAssassin 3.0.2
    cpe:2.3:a:apache:spamassassin:3.0.2
  • Apache Software Foundation SpamAssassin 3.0.3
    cpe:2.3:a:apache:spamassassin:3.0.3
  • Apache Software Foundation SpamAssassin 3.0.4
    cpe:2.3:a:apache:spamassassin:3.0.4
  • Apache Software Foundation SpamAssassin 3.1.0
    cpe:2.3:a:apache:spamassassin:3.1.0
  • Apache Software Foundation SpamAssassin 3.1.1
    cpe:2.3:a:apache:spamassassin:3.1.1
  • Apache Software Foundation SpamAssassin 3.1.2
    cpe:2.3:a:apache:spamassassin:3.1.2
  • Apache Software Foundation SpamAssassin 3.1.7
    cpe:2.3:a:apache:spamassassin:3.1.7
  • Canonical Ubuntu Linux 12.04 ESM (Extended Security Maintenance)
    cpe:2.3:o:canonical:ubuntu_linux:12.04:-:-:-:esm
  • Canonical Ubuntu Linux 14.04 LTS (Long-Term Support)
    cpe:2.3:o:canonical:ubuntu_linux:14.04:-:-:-:lts
  • Canonical Ubuntu Linux 16.04 LTS (Long-Term Support)
    cpe:2.3:o:canonical:ubuntu_linux:16.04:-:-:-:lts
  • Canonical Ubuntu Linux 18.04 LTS Edition
    cpe:2.3:o:canonical:ubuntu_linux:18.04:-:-:-:lts
  • Debian Linux 8.0 (Jessie)
    cpe:2.3:o:debian:debian_linux:8.0
  • RedHat Enterprise Linux Desktop 7.0
    cpe:2.3:o:redhat:enterprise_linux_desktop:7.0
  • RedHat Enterprise Linux Server 7.0
    cpe:2.3:o:redhat:enterprise_linux_server:7.0
  • Red Hat Enterprise Linux Server Extended Update Support (EUS) 7.5
    cpe:2.3:o:redhat:enterprise_linux_server_eus:7.5
  • RedHat Enterprise Linux Workstation 7.0
    cpe:2.3:o:redhat:enterprise_linux_workstation:7.0
CVSS
Base: 4.6
Impact:
Exploitability:
CWE CWE-94
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 via4
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-8F0DF2C366.NASL
    description Fixed some small bugs in the previous package: Initial rules now have the correct version, sought channel config is dropped (since it doesn't exist anymore) and build / runtime deps adjusted. ---- Update to 3.4.2. Fixes CVE-2017-15705, CVE-2018-11780 and CVE-2018-11781 along with many other bugfixes and improvements. See https://www.mail-archive.com/announce@apache.org/msg04823.html for more information. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2019-01-03
    plugin id 120609
    published 2019-01-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=120609
    title Fedora 29 : spamassassin (2018-8f0df2c366)
  • NASL family Amazon Linux Local Security Checks
    NASL id ALA_ALAS-2018-1091.NASL
    description A flaw was found in the way a local user on the SpamAssassin server could inject code in the meta rule syntax. This could cause the arbitrary code execution on the server when these rules are being processed.(CVE-2018-11781) A potential Remote Code Execution bug exists with the PDFInfo plugin in Apache SpamAssassin before 3.4.2.(CVE-2018-11780) A flaw was found in the way SpamAssassin processes HTML email containing unclosed HTML tags. A carefully crafted mail message could cause SpamAssassin to consume significant resources. If a large number of these messages are sent, a denial of service could occur potentially delaying or preventing the delivery of email.(CVE-2017-15705)
    last seen 2019-02-21
    modified 2018-12-07
    plugin id 118211
    published 2018-10-19
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118211
    title Amazon Linux AMI : spamassassin (ALAS-2018-1091)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-6ED251C42B.NASL
    description Fixed some small bugs in the previous package: Initial rules now have the correct version, sought channel config is dropped (since it doesn't exist anymore) and build / runtime deps adjusted. ---- Update to 3.4.2. Fixes CVE-2017-15705, CVE-2018-11780 and CVE-2018-11781 along with many other bugfixes and improvements. See https://www.mail-archive.com/announce@apache.org/msg04823.html for more information. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-07
    plugin id 117840
    published 2018-10-01
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117840
    title Fedora 27 : spamassassin (2018-6ed251c42b)
  • NASL family Amazon Linux Local Security Checks
    NASL id AL2_ALAS-2018-1103.NASL
    description A flaw was found in the way SpamAssassin processes HTML email containing unclosed HTML tags. A carefully crafted mail message could cause SpamAssassin to consume significant resources. If a large number of these messages are sent, a denial of service could occur potentially delaying or preventing the delivery of email.(CVE-2017-15705) A flaw was found in the way a local user on the SpamAssassin server could inject code in the meta rule syntax. This could cause the arbitrary code execution on the server when these rules are being processed.(CVE-2018-11781)
    last seen 2019-02-21
    modified 2018-12-10
    plugin id 118834
    published 2018-11-09
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118834
    title Amazon Linux 2 : spamassassin (ALAS-2018-1103)
  • NASL family Ubuntu Local Security Checks
    NASL id UBUNTU_USN-3811-1.NASL
    description It was discovered that SpamAssassin incorrectly handled certain unclosed tags in emails. A remote attacker could possibly use this issue to cause a denial of service. (CVE-2017-15705) It was discovered that SpamAssassin incorrectly handled the PDFInfo plugin. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11780) It was discovered that SpamAssassin incorrectly handled meta rule syntax. A local attacker could possibly use this issue to execute arbitrary code. (CVE-2018-11781). 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.
    last seen 2019-02-21
    modified 2018-12-07
    plugin id 118797
    published 2018-11-07
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118797
    title Ubuntu 14.04 LTS / 16.04 LTS / 18.04 LTS : spamassassin vulnerabilities (USN-3811-1)
  • NASL family Fedora Local Security Checks
    NASL id FEDORA_2018-46D7A7F63E.NASL
    description Fixed some small bugs in the previous package: Initial rules now have the correct version, sought channel config is dropped (since it doesn't exist anymore) and build / runtime deps adjusted. ---- Update to 3.4.2. Fixes CVE-2017-15705, CVE-2018-11780 and CVE-2018-11781 along with many other bugfixes and improvements. See https://www.mail-archive.com/announce@apache.org/msg04823.html for more information. Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2019-01-03
    plugin id 120387
    published 2019-01-03
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=120387
    title Fedora 28 : spamassassin (2018-46d7a7f63e)
  • NASL family Gentoo Local Security Checks
    NASL id GENTOO_GLSA-201812-07.NASL
    description The remote host is affected by the vulnerability described in GLSA-201812-07 (SpamAssassin: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in SpamAssassin. Please review the referenced CVE identifiers for details. Impact : A remote attacker could execute arbitrary code, escalate privileges, or cause a Denial of Service condition. Workaround : There is no known workaround at this time.
    last seen 2019-02-21
    modified 2018-12-17
    plugin id 119703
    published 2018-12-17
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=119703
    title GLSA-201812-07 : SpamAssassin: Multiple vulnerabilities
  • NASL family CentOS Local Security Checks
    NASL id CENTOS_RHSA-2018-2916.NASL
    description An update for spamassassin is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The SpamAssassin tool provides a way to reduce unsolicited commercial email (spam) from incoming email. Security Fix(es) : * spamassassin: Certain unclosed tags in crafted emails allow for scan timeouts and result in denial of service (CVE-2017-15705) * spamassassin: Local user code injection in the meta rule syntax (CVE-2018-11781) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
    last seen 2019-02-21
    modified 2018-12-10
    plugin id 118117
    published 2018-10-16
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118117
    title CentOS 7 : spamassassin (CESA-2018:2916)
  • NASL family Scientific Linux Local Security Checks
    NASL id SL_20181011_SPAMASSASSIN_ON_SL7_X.NASL
    description Security Fix(es) : - spamassassin: Certain unclosed tags in crafted emails allow for scan timeouts and result in denial of service (CVE-2017-15705) - spamassassin: Local user code injection in the meta rule syntax (CVE-2018-11781)
    last seen 2019-02-21
    modified 2018-12-27
    plugin id 118108
    published 2018-10-15
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118108
    title Scientific Linux Security Update : spamassassin on SL7.x x86_64
  • NASL family Red Hat Local Security Checks
    NASL id REDHAT-RHSA-2018-2916.NASL
    description An update for spamassassin is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The SpamAssassin tool provides a way to reduce unsolicited commercial email (spam) from incoming email. Security Fix(es) : * spamassassin: Certain unclosed tags in crafted emails allow for scan timeouts and result in denial of service (CVE-2017-15705) * spamassassin: Local user code injection in the meta rule syntax (CVE-2018-11781) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
    last seen 2019-02-21
    modified 2018-12-10
    plugin id 118077
    published 2018-10-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118077
    title RHEL 7 : spamassassin (RHSA-2018:2916)
  • NASL family Oracle Linux Local Security Checks
    NASL id ORACLELINUX_ELSA-2018-2916.NASL
    description From Red Hat Security Advisory 2018:2916 : An update for spamassassin is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. The SpamAssassin tool provides a way to reduce unsolicited commercial email (spam) from incoming email. Security Fix(es) : * spamassassin: Certain unclosed tags in crafted emails allow for scan timeouts and result in denial of service (CVE-2017-15705) * spamassassin: Local user code injection in the meta rule syntax (CVE-2018-11781) For more details about the security issue(s), including the impact, a CVSS score, and other related information, refer to the CVE page(s) listed in the References section.
    last seen 2019-02-21
    modified 2018-12-10
    plugin id 118076
    published 2018-10-12
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118076
    title Oracle Linux 7 : spamassassin (ELSA-2018-2916)
  • NASL family Debian Local Security Checks
    NASL id DEBIAN_DLA-1578.NASL
    description Multiple vulnerabilities were found in Spamassassin, which could lead to Remote Code Execution and Denial of Service attacks under certain circumstances. CVE-2016-1238 Many Perl programs do not properly remove . (period) characters from the end of the includes directory array, which might allow local users to gain privileges via a Trojan horse module under the current working directory. CVE-2017-15705 A denial of service vulnerability was identified that exists in Apache SpamAssassin before 3.4.2. The vulnerability arises with certain unclosed tags in emails that cause markup to be handled incorrectly leading to scan timeouts. This can cause carefully crafted emails that might take more scan time than expected leading to a Denial of Service. CVE-2018-11780 A potential Remote Code Execution bug exists with the PDFInfo plugin in Apache SpamAssassin before 3.4.2. CVE-2018-11781 Apache SpamAssassin 3.4.2 fixes a local user code injection in the meta rule syntax. For Debian 8 'Jessie', these problems have been fixed in version 3.4.2-0+deb8u1. Upstream strongly advocates upgrading to the latest upstream version so we are following that recommendation and backported the version published as part of the 9.6 stretch release, which also fixes many critical bugs. We recommend that you upgrade your spamassassin packages. NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen 2019-02-21
    modified 2018-12-07
    plugin id 118938
    published 2018-11-14
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=118938
    title Debian DLA-1578-1 : spamassassin security update
  • NASL family FreeBSD Local Security Checks
    NASL id FREEBSD_PKG_613193A0C1B411E8AE2D54E1AD3D6335.NASL
    description the Apache Spamassassin project reports : In Apache SpamAssassin, using HTML::Parser, we setup an object and hook into the begin and end tag event handlers In both cases, the 'open' event is immediately followed by a 'close' event - even if the tag *does not* close in the HTML being parsed. Because of this, we are missing the 'text' event to deal with the object normally. This can cause carefully crafted emails that might take more scan time than expected leading to a Denial of Service. Fix a reliance on '.' in @INC in one configuration script. Whether this can be exploited in any way is uncertain. Fix a potential Remote Code Execution bug with the PDFInfo plugin. Thanks to cPanel Security Team for their report of this issue. Fourth, this release fixes a local user code injection in the meta rule syntax. Thanks again to cPanel Security Team for their report of this issue.
    last seen 2019-02-21
    modified 2018-12-07
    plugin id 117721
    published 2018-09-27
    reporter Tenable
    source https://www.tenable.com/plugins/index.php?view=single&id=117721
    title FreeBSD : spamassassin -- multiple vulnerabilities (613193a0-c1b4-11e8-ae2d-54e1ad3d6335)
redhat via4
advisories
bugzilla
id 1629536
title CVE-2018-11781 spamassassin: Local user code injection in the meta rule syntax
oval
AND
  • comment spamassassin is earlier than 0:3.4.0-4.el7_5
    oval oval:com.redhat.rhsa:tst:20182916005
  • comment spamassassin is signed with Red Hat redhatrelease2 key
    oval oval:com.redhat.rhsa:tst:20182916006
  • OR
    • comment Red Hat Enterprise Linux 7 Client is installed
      oval oval:com.redhat.rhba:tst:20150364001
    • comment Red Hat Enterprise Linux 7 Server is installed
      oval oval:com.redhat.rhba:tst:20150364002
    • comment Red Hat Enterprise Linux 7 Workstation is installed
      oval oval:com.redhat.rhba:tst:20150364003
    • comment Red Hat Enterprise Linux 7 ComputeNode is installed
      oval oval:com.redhat.rhba:tst:20150364004
rhsa
id RHSA-2018:2916
released 2018-10-11
severity Important
title RHSA-2018:2916: spamassassin security update (Important)
rpms spamassassin-0:3.4.0-4.el7_5
refmap via4
gentoo GLSA-201812-07
mlist
  • [announce] 20180916 [SECURITY] Apache SpamAssassin 3.4.2 resolves CVE-2017-15705, CVE-2016-1238, CVE-2018-11780 & CVE-2018-11781
  • [debian-lts-announce] 20181113 [SECURITY] [DLA 1578-1] spamassassin security update
ubuntu
  • USN-3811-1
  • USN-3811-3
Last major update 17-09-2018 - 10:29
Published 17-09-2018 - 10:29
Last modified 06-08-2019 - 17:15
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