The remote SUSE Linux SLES11 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2020:14334-1 advisory.
Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable Network Security, Inc.
#
# The package checks in this plugin were extracted from
# SUSE update advisory SUSE-SU-2020:14334-1. The text itself
# is copyright (C) SUSE.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(150589);
script_version("1.7");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/11");
script_cve_id("CVE-2020-1938");
script_xref(name:"SuSE", value:"SUSE-SU-2020:14334-1");
script_xref(name:"IAVB", value:"2020-B-0010-S");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/03/17");
script_xref(name:"CEA-ID", value:"CEA-2020-0021");
script_name(english:"SUSE SLES11 Security Update : tomcat6 (SUSE-SU-2020:14334-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote SUSE host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The remote SUSE Linux SLES11 host has packages installed that are affected by a vulnerability as referenced in the SUSE-
SU-2020:14334-1 advisory.
- When using the Apache JServ Protocol (AJP), care must be taken when trusting incoming connections to
Apache Tomcat. Tomcat treats AJP connections as having higher trust than, for example, a similar HTTP
connection. If such connections are available to an attacker, they can be exploited in ways that may be
surprising. In Apache Tomcat 9.0.0.M1 to 9.0.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99, Tomcat shipped
with an AJP Connector enabled by default that listened on all configured IP addresses. It was expected
(and recommended in the security guide) that this Connector would be disabled if not required. This
vulnerability report identified a mechanism that allowed: - returning arbitrary files from anywhere in the
web application - processing any file in the web application as a JSP Further, if the web application
allowed file upload and stored those files within the web application (or the attacker was able to control
the content of the web application by some other means) then this, along with the ability to process a
file as a JSP, made remote code execution possible. It is important to note that mitigation is only
required if an AJP port is accessible to untrusted users. Users wishing to take a defence-in-depth
approach and block the vector that permits returning arbitrary files and execution as JSP may upgrade to
Apache Tomcat 9.0.31, 8.5.51 or 7.0.100 or later. A number of changes were made to the default AJP
Connector configuration in 9.0.31 to harden the default configuration. It is likely that users upgrading
to 9.0.31, 8.5.51 or 7.0.100 or later will need to make small changes to their configurations.
(CVE-2020-1938)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://bugzilla.suse.com/1164692");
# https://lists.suse.com/pipermail/sle-security-updates/2020-March/006646.html
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?da09f9e5");
script_set_attribute(attribute:"see_also", value:"https://www.suse.com/security/cve/CVE-2020-1938");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1938");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"exploited_by_malware", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/24");
script_set_attribute(attribute:"patch_publication_date", value:"2020/03/27");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/06/10");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6-admin-webapps");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6-docs-webapp");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6-javadoc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6-jsp-2_1-api");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6-lib");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6-servlet-2_5-api");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:tomcat6-webapps");
script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:11");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"SuSE Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/rpm-list");
exit(0);
}
include('audit.inc');
include('global_settings.inc');
include('misc_func.inc');
include('rpm.inc');
if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, 'SUSE');
os_ver = os_ver[1];
if (! preg(pattern:"^(SLES11)$", string:os_ver)) audit(AUDIT_OS_NOT, 'SUSE SLES11', 'SUSE ' + os_ver);
if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 's390' >!< cpu && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'SUSE ' + os_ver, cpu);
sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES11" && (! preg(pattern:"^(4)$", string:sp))) audit(AUDIT_OS_NOT, "SLES11 SP4", os_ver + " SP" + sp);
pkgs = [
{'reference':'tomcat6-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-admin-webapps-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-docs-webapp-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-javadoc-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-jsp-2_1-api-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-lib-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-servlet-2_5-api-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-webapps-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'SLES_SAP-release-11.4'},
{'reference':'tomcat6-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'},
{'reference':'tomcat6-admin-webapps-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'},
{'reference':'tomcat6-docs-webapp-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'},
{'reference':'tomcat6-javadoc-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'},
{'reference':'tomcat6-jsp-2_1-api-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'},
{'reference':'tomcat6-lib-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'},
{'reference':'tomcat6-servlet-2_5-api-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'},
{'reference':'tomcat6-webapps-6.0.53-0.57.13', 'sp':'4', 'release':'SLES11', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'sles-release-11.4'}
];
flag = 0;
foreach package_array ( pkgs ) {
reference = NULL;
release = NULL;
sp = NULL;
cpu = NULL;
exists_check = NULL;
rpm_spec_vers_cmp = NULL;
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (!empty_or_null(package_array['release'])) release = package_array['release'];
if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
if (reference && release && exists_check) {
if (rpm_exists(release:release, rpm:exists_check) && rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
else if (reference && release) {
if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, rpm_spec_vers_cmp:rpm_spec_vers_cmp)) flag++;
}
}
if (flag)
{
ltss_plugin_caveat = '\n' +
'NOTE: This vulnerability check contains fixes that apply to\n' +
'packages only available in SUSE Enterprise Linux Server LTSS\n' +
'repositories. Access to these package security updates require\n' +
'a paid SUSE LTSS subscription.\n';
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : rpm_report_get() + ltss_plugin_caveat
);
exit(0);
}
else
{
tested = pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'tomcat6 / tomcat6-admin-webapps / tomcat6-docs-webapp / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
novell | suse_linux | tomcat6 | p-cpe:/a:novell:suse_linux:tomcat6 |
novell | suse_linux | tomcat6-admin-webapps | p-cpe:/a:novell:suse_linux:tomcat6-admin-webapps |
novell | suse_linux | tomcat6-docs-webapp | p-cpe:/a:novell:suse_linux:tomcat6-docs-webapp |
novell | suse_linux | tomcat6-javadoc | p-cpe:/a:novell:suse_linux:tomcat6-javadoc |
novell | suse_linux | tomcat6-jsp-2_1-api | p-cpe:/a:novell:suse_linux:tomcat6-jsp-2_1-api |
novell | suse_linux | tomcat6-lib | p-cpe:/a:novell:suse_linux:tomcat6-lib |
novell | suse_linux | tomcat6-servlet-2_5-api | p-cpe:/a:novell:suse_linux:tomcat6-servlet-2_5-api |
novell | suse_linux | tomcat6-webapps | p-cpe:/a:novell:suse_linux:tomcat6-webapps |
novell | suse_linux | 11 | cpe:/o:novell:suse_linux:11 |