A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious Configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. This issue is less stealthy and attempts to exploit the issue will throw warnings. Thanks to Damian Lukowski at credativ for reporting the issue ethically. With this bug unpatched, exploits can be injected in a number of scenarios though doing so remotely is difficult. In addition to upgrading to SA 3.4.4, we again recommend that users should only use update channels or 3rd party .cf files from trusted places.

The remote NewStart CGSL host, running version MAIN 6.02, has spamassassin packages installed that are affected by multiple vulnerabilities:

  - In Apache SpamAssassin before 3.4.3, a message can be crafted in a way to use excessive resources.
    Upgrading to SA 3.4.3 as soon as possible is the recommended fix but details will not be shared publicly.
    (CVE-2019-12420)

  - A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious     rule configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. With     this bug unpatched, exploits can be injected in a number of scenarios including the same privileges as     spamd is run which may be elevated though doing so remotely is difficult. In addition to upgrading to SA     3.4.4, we again recommend that users should only use update channels or 3rd party .cf files from trusted     places. If you cannot upgrade, do not use 3rd party rulesets, do not use sa-compile and do not run spamd     as an account with elevated privileges. (CVE-2020-1930)

  - A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious     Configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. This issue     is less stealthy and attempts to exploit the issue will throw warnings. Thanks to Damian Lukowski at     credativ for reporting the issue ethically. With this bug unpatched, exploits can be injected in a number     of scenarios though doing so remotely is difficult. In addition to upgrading to SA 3.4.4, we again     recommend that users should only use update channels or 3rd party .cf files from trusted places.
    (CVE-2020-1931)

  - In Apache SpamAssassin before 3.4.3, nefarious CF files can be configured to run system commands without     any output or errors. With this, exploits can be injected in a number of scenarios. In addition to     upgrading to SA 3.4.3, we recommend that users should only use update channels or 3rd party .cf files from     trusted places. (CVE-2018-11805)

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

According to the versions of the spamassassin package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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. 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. The issue     is possibly a bug or design decision in HTML::Parser     that specifically impacts the way Apache SpamAssassin     uses the module with poorly formed html. The exploit     has been seen in the wild but not believed to have been     purposefully part of a Denial of Service attempt. We     are concerned that there may be attempts to abuse the     vulnerability in the future.(CVE-2017-15705)

  - In Apache SpamAssassin before 3.4.3, a message can be     crafted in a way to use excessive resources. Upgrading     to SA 3.4.3 as soon as possible is the recommended fix     but details will not be shared     publicly.(CVE-2019-12420)

  - A command execution issue was found in Apache     SpamAssassin prior to 3.4.3. Carefully crafted     nefarious Configuration (.cf) files can be configured     to run system commands similar to CVE-2018-11805. This     issue is less stealthy and attempts to exploit the     issue will throw warnings. Thanks to Damian Lukowski at     credativ for reporting the issue ethically. With this     bug unpatched, exploits can be injected in a number of     scenarios though doing so remotely is difficult. In     addition to upgrading to SA 3.4.4, we again recommend     that users should only use update channels or 3rd party     .cf files from trusted places.(CVE-2020-1931)

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

The remote CentOS Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the CESA-2020:4625 advisory.

  - spamassassin: crafted configuration files can run system commands without any output or errors     (CVE-2018-11805)

  - spamassassin: crafted email message can lead to DoS (CVE-2019-12420)

  - spamassassin: command injection via crafted configuration file (CVE-2020-1930, CVE-2020-1931)

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

According to the versions of the spamassassin package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - SpamAssassin provides you with a way to reduce if not     completely eliminate Unsolicited Commercial Email     (SPAM) from your incoming email. It can be invoked by a     MDA such as sendmail or postfix, or can be called from     a procmail script, .forward file, etc. It uses a     genetic-algorithm evolved scoring system to identify     messages which look spammy, then adds headers to the     message so they can be filtered by the user's mail     reading software. This distribution includes the     spamd/spamc components which create a server that     considerably speeds processing of mail.Security     Fix(es):In Apache SpamAssassin before 3.4.3, a message     can be crafted in a way to use excessive resources.
    Upgrading to SA 3.4.3 as soon as possible is the     recommended fix but details will not be shared     publicly.(CVE-2019-12420)A command execution issue was     found in Apache SpamAssassin prior to 3.4.3. Carefully     crafted nefarious Configuration (.cf) files can be     configured to run system commands similar to     CVE-2018-11805. This issue is less stealthy and     attempts to exploit the issue will throw warnings.
    Thanks to Damian Lukowski at credativ for reporting the     issue ethically. With this bug unpatched, exploits can     be injected in a number of scenarios though doing so     remotely is difficult. In addition to upgrading to SA     3.4.4, we again recommend that users should only use     update channels or 3rd party .cf files from trusted     places.(CVE-2020-1931)

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

The remote Oracle Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2020-4625 advisory.

  - In Apache SpamAssassin before 3.4.3, a message can be crafted in a way to use excessive resources.
    Upgrading to SA 3.4.3 as soon as possible is the recommended fix but details will not be shared publicly.
    (CVE-2019-12420)

  - A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious     rule configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. With     this bug unpatched, exploits can be injected in a number of scenarios including the same privileges as     spamd is run which may be elevated though doing so remotely is difficult. In addition to upgrading to SA     3.4.4, we again recommend that users should only use update channels or 3rd party .cf files from trusted     places. If you cannot upgrade, do not use 3rd party rulesets, do not use sa-compile and do not run spamd     as an account with elevated privileges. (CVE-2020-1930)

  - In Apache SpamAssassin before 3.4.3, nefarious CF files can be configured to run system commands without     any output or errors. With this, exploits can be injected in a number of scenarios. In addition to     upgrading to SA 3.4.3, we recommend that users should only use update channels or 3rd party .cf files from     trusted places. (CVE-2018-11805)

  - A command execution issue was found in Apache SpamAssassin prior to 3.4.3. Carefully crafted nefarious     Configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. This issue     is less stealthy and attempts to exploit the issue will throw warnings. Thanks to Damian Lukowski at     credativ for reporting the issue ethically. With this bug unpatched, exploits can be injected in a number     of scenarios though doing so remotely is difficult. In addition to upgrading to SA 3.4.4, we again     recommend that users should only use update channels or 3rd party .cf files from trusted places.
    (CVE-2020-1931)

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

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:4625 advisory.

  - spamassassin: crafted configuration files can run system commands without any output or errors     (CVE-2018-11805)

  - spamassassin: crafted email message can lead to DoS (CVE-2019-12420)

  - spamassassin: command injection via crafted configuration file (CVE-2020-1930, CVE-2020-1931)

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

According to the versions of the spamassassin package installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - 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. 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. The issue     is possibly a bug or design decision in HTML::Parser     that specifically impacts the way Apache SpamAssassin     uses the module with poorly formed html. The exploit     has been seen in the wild but not believed to have been     purposefully part of a Denial of Service attempt. We     are concerned that there may be attempts to abuse the     vulnerability in the future.(CVE-2017-15705)

  - Apache SpamAssassin 3.4.2 fixes a local user code     injection in the meta rule syntax.(CVE-2018-11781)

  - In Apache SpamAssassin before 3.4.3, a message can be     crafted in a way to use excessive resources. Upgrading     to SA 3.4.3 as soon as possible is the recommended fix     but details will not be shared     publicly.(CVE-2019-12420)

  - A command execution issue was found in Apache     SpamAssassin prior to 3.4.3. Carefully crafted     nefarious Configuration (.cf) files can be configured     to run system commands similar to CVE-2018-11805. This     issue is less stealthy and attempts to exploit the     issue will throw warnings. Thanks to Damian Lukowski at     credativ for reporting the issue ethically. With this     bug unpatched, exploits can be injected in a number of     scenarios though doing so remotely is difficult. In     addition to upgrading to SA 3.4.4, we again recommend     that users should only use update channels or 3rd party     .cf files from trusted places.(CVE-2020-1931)

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

This update for spamassassin fixes the following issues :

Security issues fixed :

  - CVE-2018-11805: Fixed an issue with delimiter handling     in rule files related to is_regexp_valid()     (bsc#1118987).

  - CVE-2020-1930: Fixed an issue with rule configuration     (.cf) files which can be configured to run system     commands (bsc#1162197).

  - CVE-2020-1931: Fixed an issue with rule configuration     (.cf) files which can be configured to run system     commands with warnings (bsc#1162200). Non-security issue     fixed :

  - Altering hash requires restarting loop (bsc#862963).

This update was imported from the SUSE:SLE-15-SP1:Update update project.

This update for spamassassin fixes the following issues :

Security issues fixed :

CVE-2018-11805: Fixed an issue with delimiter handling in rule files related to is_regexp_valid() (bsc#1118987).

CVE-2020-1930: Fixed an issue with rule configuration (.cf) files which can be configured to run system commands (bsc#1162197).

CVE-2020-1931: Fixed an issue with rule configuration (.cf) files which can be configured to run system commands with warnings (bsc#1162200).

Non-security issue fixed: Altering hash requires restarting loop (bsc#862963).

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

This update for spamassassin fixes the following issues :

CVE-2018-11805: Fixed an issue with delimiter handling in rule files related to is_regexp_valid() (bsc#1118987).

CVE-2020-1930: Fixed an issue with rule configuration (.cf) files which can be configured to run system commands (bsc#1162197).

CVE-2020-1931: Fixed an issue with rule configuration (.cf) files which can be configured to run system commands with warnings (bsc#1162200).

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

Two vulnerabilities were discovered in spamassassin, a Perl-based spam filter using text analysis. Malicious rule or configuration files, possibly downloaded from an updates server, could execute arbitrary commands under multiple scenarios.

For Debian 8 'Jessie', these problems have been fixed in version 3.4.2-0+deb8u3.

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.

Update to 3.4.4. Fixes CVE-2020-1930 and CVE-2020-1931.

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.

It was discovered that SpamAssassin incorrectly handled certain CF files. If a user or automated system were tricked into using a specially crafted CF file, a remote attacker could possibly run arbitrary code.

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.

The Apache SpamAssassin project reports :

A nefarious rule configuration (.cf) files can be configured to run system commands. This issue is less stealthy and attempts to exploit the issue will throw warnings.

Thanks to Damian Lukowski at credativ for reporting the issue ethically. With this bug unpatched, exploits can be injected in a number of scenarios though doing so remotely is difficult. In addition to upgrading to SA 3.4.4, we again recommend that users should only use update channels or 3rd party .cf files from trusted places.

Two vulnerabilities were discovered in spamassassin, a Perl-based spam filter using text analysis. Malicious rule or configuration files, possibly downloaded from an updates server, could execute arbitrary commands under multiple scenarios.

the Apache Spamassassin project reports :

nefarious rule configuration (.cf) files can be configured to run system commands similar to CVE-2018-11805. This issue is less stealthy and attempts to exploit the issue will throw warnings.

ID	Name	Product	Family	Severity
147296	NewStart CGSL MAIN 6.02 : spamassassin Multiple Vulnerabilities (NS-SA-2021-0070)	Nessus	NewStart CGSL Local Security Checks	high
146670	EulerOS 2.0 SP2 : spamassassin (EulerOS-SA-2021-1360)	Nessus	Huawei Local Security Checks	high
145824	CentOS 8 : spamassassin (CESA-2020:4625)	Nessus	CentOS Local Security Checks	high
145177	EulerOS 2.0 SP3 : spamassassin (EulerOS-SA-2021-1120)	Nessus	Huawei Local Security Checks	high
142794	Oracle Linux 8 : spamassassin (ELSA-2020-4625)	Nessus	Oracle Linux Local Security Checks	high
142377	RHEL 8 : spamassassin (RHSA-2020:4625)	Nessus	Red Hat Local Security Checks	high
142129	EulerOS 2.0 SP5 : spamassassin (EulerOS-SA-2020-2272)	Nessus	Huawei Local Security Checks	high
135221	openSUSE Security Update : spamassassin (openSUSE-2020-446)	Nessus	SuSE Local Security Checks	high
135025	SUSE SLES15 Security Update : spamassassin (SUSE-SU-2020:0813-1)	Nessus	SuSE Local Security Checks	high
135024	SUSE SLED15 / SLES15 Security Update : spamassassin (SUSE-SU-2020:0811-1)	Nessus	SuSE Local Security Checks	high
135023	SUSE SLES12 Security Update : spamassassin (SUSE-SU-2020:0810-1)	Nessus	SuSE Local Security Checks	high
133772	Debian DLA-2107-1 : spamassassin security update	Nessus	Debian Local Security Checks	high
133628	Fedora 30 : spamassassin (2020-bd20036cdc)	Nessus	Fedora Local Security Checks	high
133626	Fedora 31 : spamassassin (2020-24dac7d890)	Nessus	Fedora Local Security Checks	high
133496	Ubuntu 16.04 LTS / 18.04 LTS : SpamAssassin vulnerabilities (USN-4265-1)	Nessus	Ubuntu Local Security Checks	high
133435	FreeBSD : spamassassin -- Nefarious rule configuration files can run system commands (c86bfee3-4441-11ea-8be3-54e1ad3d6335)	Nessus	FreeBSD Local Security Checks	high
133418	Debian DSA-4615-1 : spamassassin - security update	Nessus	Debian Local Security Checks	high
133380	FreeBSD : spamassassin -- Apache SpamAssassin Nefarious rule configuration (.cf) files can be configured to run system commands with warnings (e3404a6e-4364-11ea-b643-206a8a720317)	Nessus	FreeBSD Local Security Checks	high

Detections

Analytics

CVE-2020-1931

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high

high