The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-2815 advisory.
An issue was discovered in SaltStack Salt before 3002.5. The minion’s restartcheck is vulnerable to command injection via a crafted process name. This allows for a local privilege escalation by any user able to create a files on the minion in a non-blacklisted directory. (CVE-2020-28243)
In SaltStack Salt before 3002.5, authentication to VMware vcenter, vsphere, and esxi servers (in the vmware.py files) does not always validate the SSL/TLS certificate. (CVE-2020-28972)
In SaltStack Salt before 3002.5, when authenticating to services using certain modules, the SSL certificate is not always validated. (CVE-2020-35662)
An issue was discovered in through SaltStack Salt before 3002.5. salt-api does not honor eauth credentials for the wheel_async client. Thus, an attacker can remotely run any wheel modules on the master.
(CVE-2021-25281)
An issue was discovered in through SaltStack Salt before 3002.5. The salt.wheel.pillar_roots.write method is vulnerable to directory traversal. (CVE-2021-25282)
An issue was discovered in through SaltStack Salt before 3002.5. The jinja renderer does not protect against server side template injection attacks. (CVE-2021-25283)
An issue was discovered in through SaltStack Salt before 3002.5. salt.modules.cmdmod can log credentials to the info or error log level. (CVE-2021-25284)
In SaltStack Salt before 3002.5, eauth tokens can be used once after expiration. (They might be used to run command against the salt master or minions.) (CVE-2021-3144)
An issue was discovered in SaltStack Salt before 3002.5. Sending crafted web requests to the Salt API can result in salt.utils.thin.gen_thin() command injection because of different handling of single versus double quotes. This is related to salt/utils/thin.py. (CVE-2021-3148)
In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module that allows for local privilege escalation on a minion. The attack requires that a file is created with a pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes popen unsafely). (CVE-2021-31607)
An issue was discovered in SaltStack Salt before 3002.5. The salt-api’s ssh client is vulnerable to a shell injection by including ProxyCommand in an argument, or via ssh_options provided in an API request.
(CVE-2021-3197)
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 descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dla-2815. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(155123);
script_version("1.5");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/01");
script_cve_id(
"CVE-2020-28243",
"CVE-2020-28972",
"CVE-2020-35662",
"CVE-2021-3144",
"CVE-2021-3148",
"CVE-2021-3197",
"CVE-2021-25281",
"CVE-2021-25282",
"CVE-2021-25283",
"CVE-2021-25284",
"CVE-2021-31607"
);
script_xref(name:"IAVA", value:"2021-A-0112-S");
script_xref(name:"IAVA", value:"2021-A-0524-S");
script_name(english:"Debian DLA-2815-1 : salt - LTS security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing one or more security-related updates.");
script_set_attribute(attribute:"description", value:
"The remote Debian 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the
dla-2815 advisory.
- An issue was discovered in SaltStack Salt before 3002.5. The minion's restartcheck is vulnerable to
command injection via a crafted process name. This allows for a local privilege escalation by any user
able to create a files on the minion in a non-blacklisted directory. (CVE-2020-28243)
- In SaltStack Salt before 3002.5, authentication to VMware vcenter, vsphere, and esxi servers (in the
vmware.py files) does not always validate the SSL/TLS certificate. (CVE-2020-28972)
- In SaltStack Salt before 3002.5, when authenticating to services using certain modules, the SSL
certificate is not always validated. (CVE-2020-35662)
- An issue was discovered in through SaltStack Salt before 3002.5. salt-api does not honor eauth credentials
for the wheel_async client. Thus, an attacker can remotely run any wheel modules on the master.
(CVE-2021-25281)
- An issue was discovered in through SaltStack Salt before 3002.5. The salt.wheel.pillar_roots.write method
is vulnerable to directory traversal. (CVE-2021-25282)
- An issue was discovered in through SaltStack Salt before 3002.5. The jinja renderer does not protect
against server side template injection attacks. (CVE-2021-25283)
- An issue was discovered in through SaltStack Salt before 3002.5. salt.modules.cmdmod can log credentials
to the info or error log level. (CVE-2021-25284)
- In SaltStack Salt before 3002.5, eauth tokens can be used once after expiration. (They might be used to
run command against the salt master or minions.) (CVE-2021-3144)
- An issue was discovered in SaltStack Salt before 3002.5. Sending crafted web requests to the Salt API can
result in salt.utils.thin.gen_thin() command injection because of different handling of single versus
double quotes. This is related to salt/utils/thin.py. (CVE-2021-3148)
- In SaltStack Salt 2016.9 through 3002.6, a command injection vulnerability exists in the snapper module
that allows for local privilege escalation on a minion. The attack requires that a file is created with a
pathname that is backed up by snapper, and that the master calls the snapper.diff function (which executes
popen unsafely). (CVE-2021-31607)
- An issue was discovered in SaltStack Salt before 3002.5. The salt-api's ssh client is vulnerable to a
shell injection by including ProxyCommand in an argument, or via ssh_options provided in an API request.
(CVE-2021-3197)
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://bugs.debian.org/cgi-bin/bugreport.cgi?bug=987496");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/salt");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/lts/security/2021/dla-2815");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-28243");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-28972");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2020-35662");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-25281");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-25282");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-25283");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-25284");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3144");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3148");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-31607");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2021-3197");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/salt");
script_set_attribute(attribute:"solution", value:
"Upgrade the salt packages.
For Debian 9 stretch, these problems have been fixed in version 2016.11.2+ds-1+deb9u7.");
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:F/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:F/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-3197");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"metasploit_name", value:'SaltStack Salt API Unauthenticated RCE through wheel_async client');
script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2021/02/27");
script_set_attribute(attribute:"patch_publication_date", value:"2021/11/10");
script_set_attribute(attribute:"plugin_publication_date", value:"2021/11/11");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-api");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-cloud");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-common");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-doc");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-master");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-minion");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-proxy");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-ssh");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:salt-syndic");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2021-2022 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/Debian/release", "Host/Debian/dpkg-l");
exit(0);
}
include('audit.inc');
include('debian_package.inc');
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
var release = get_kb_item('Host/Debian/release');
if ( isnull(release) ) audit(AUDIT_OS_NOT, 'Debian');
var release = chomp(release);
if (! preg(pattern:"^(9)\.[0-9]+", string:release)) audit(AUDIT_OS_NOT, 'Debian 9.0', 'Debian ' + release);
var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Debian', cpu);
var pkgs = [
{'release': '9.0', 'prefix': 'salt-api', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-cloud', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-common', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-doc', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-master', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-minion', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-proxy', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-ssh', 'reference': '2016.11.2+ds-1+deb9u7'},
{'release': '9.0', 'prefix': 'salt-syndic', 'reference': '2016.11.2+ds-1+deb9u7'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var release = NULL;
var prefix = NULL;
var reference = NULL;
if (!empty_or_null(package_array['release'])) release = package_array['release'];
if (!empty_or_null(package_array['prefix'])) prefix = package_array['prefix'];
if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
if (release && prefix && reference) {
if (deb_check(release:release, prefix:prefix, reference:reference)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_HOLE,
extra : deb_report_get()
);
exit(0);
}
else
{
var tested = deb_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'salt-api / salt-cloud / salt-common / salt-doc / salt-master / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | salt-ssh | p-cpe:/a:debian:debian_linux:salt-ssh |
debian | debian_linux | 9.0 | cpe:/o:debian:debian_linux:9.0 |
debian | debian_linux | salt-cloud | p-cpe:/a:debian:debian_linux:salt-cloud |
debian | debian_linux | salt-common | p-cpe:/a:debian:debian_linux:salt-common |
debian | debian_linux | salt-doc | p-cpe:/a:debian:debian_linux:salt-doc |
debian | debian_linux | salt-api | p-cpe:/a:debian:debian_linux:salt-api |
debian | debian_linux | salt-proxy | p-cpe:/a:debian:debian_linux:salt-proxy |
debian | debian_linux | salt-syndic | p-cpe:/a:debian:debian_linux:salt-syndic |
debian | debian_linux | salt-minion | p-cpe:/a:debian:debian_linux:salt-minion |
debian | debian_linux | salt-master | p-cpe:/a:debian:debian_linux:salt-master |
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28243
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-28972
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-35662
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25281
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25282
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25283
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-25284
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3144
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3148
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31607
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-3197
bugs.debian.org/cgi-bin/bugreport.cgi?bug=987496
packages.debian.org/source/stretch/salt
security-tracker.debian.org/tracker/CVE-2020-28243
security-tracker.debian.org/tracker/CVE-2020-28972
security-tracker.debian.org/tracker/CVE-2020-35662
security-tracker.debian.org/tracker/CVE-2021-25281
security-tracker.debian.org/tracker/CVE-2021-25282
security-tracker.debian.org/tracker/CVE-2021-25283
security-tracker.debian.org/tracker/CVE-2021-25284
security-tracker.debian.org/tracker/CVE-2021-3144
security-tracker.debian.org/tracker/CVE-2021-3148
security-tracker.debian.org/tracker/CVE-2021-31607
security-tracker.debian.org/tracker/CVE-2021-3197
security-tracker.debian.org/tracker/source-package/salt
www.debian.org/lts/security/2021/dla-2815