4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
8.4 High
AI Score
Confidence
Low
0.004 Low
EPSS
Percentile
72.6%
The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-6559-1 advisory.
An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper’s getACL() command doesn’t check any permission when retrieves the ACLs of the requested node and returns all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads the Id field with the hash value that is used for user authentication. As a consequence, if Digest Authentication is in use, the unsalted hash value will be disclosed by getACL() request for unauthenticated or unprivileged users. (CVE-2019-0201)
Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. If SASL Quorum Peer authentication is enabled in ZooKeeper (quorum.auth.enableSasl=true), the authorization is done by verifying that the instance part in SASL authentication ID is listed in zoo.cfg server list. The instance part in SASL auth ID is optional and if it’s missing, like ‘[email protected]’, the authorization check will be skipped. As a result an arbitrary endpoint could join the cluster and begin propagating counterfeit changes to the leader, essentially giving it complete read-write access to the data tree. Quorum Peer authentication is not enabled by default. Users are recommended to upgrade to version 3.9.1, 3.8.3, 3.7.2, which fixes the issue. Alternately ensure the ensemble election/quorum communication is protected by a firewall as this will mitigate the issue. See the documentation for more details on correct cluster administration. (CVE-2023-44981)
Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-6559-1. The text
# itself is copyright (C) Canonical, Inc. See
# <https://ubuntu.com/security/notices>. Ubuntu(R) is a registered
# trademark of Canonical, Inc.
##
include('compat.inc');
if (description)
{
script_id(189088);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/21");
script_cve_id("CVE-2019-0201", "CVE-2023-44981");
script_xref(name:"IAVB", value:"2019-B-0041-S");
script_xref(name:"USN", value:"6559-1");
script_xref(name:"IAVB", value:"2023-B-0082-S");
script_name(english:"Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 : ZooKeeper vulnerabilities (USN-6559-1)");
script_set_attribute(attribute:"synopsis", value:
"The remote Ubuntu host is missing one or more security updates.");
script_set_attribute(attribute:"description", value:
"The remote Ubuntu 16.04 ESM / 18.04 ESM / 20.04 LTS / 22.04 LTS / 23.04 / 23.10 host has packages installed that are
affected by multiple vulnerabilities as referenced in the USN-6559-1 advisory.
- An issue is present in Apache ZooKeeper 1.0.0 to 3.4.13 and 3.5.0-alpha to 3.5.4-beta. ZooKeeper's
getACL() command doesn't check any permission when retrieves the ACLs of the requested node and returns
all information contained in the ACL Id field as plaintext string. DigestAuthenticationProvider overloads
the Id field with the hash value that is used for user authentication. As a consequence, if Digest
Authentication is in use, the unsalted hash value will be disclosed by getACL() request for
unauthenticated or unprivileged users. (CVE-2019-0201)
- Authorization Bypass Through User-Controlled Key vulnerability in Apache ZooKeeper. If SASL Quorum Peer
authentication is enabled in ZooKeeper (quorum.auth.enableSasl=true), the authorization is done by
verifying that the instance part in SASL authentication ID is listed in zoo.cfg server list. The instance
part in SASL auth ID is optional and if it's missing, like '[email protected]', the authorization check will
be skipped. As a result an arbitrary endpoint could join the cluster and begin propagating counterfeit
changes to the leader, essentially giving it complete read-write access to the data tree. Quorum Peer
authentication is not enabled by default. Users are recommended to upgrade to version 3.9.1, 3.8.3, 3.7.2,
which fixes the issue. Alternately ensure the ensemble election/quorum communication is protected by a
firewall as this will mitigate the issue. See the documentation for more details on correct cluster
administration. (CVE-2023-44981)
Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/notices/USN-6559-1");
script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/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:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2019-0201");
script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-44981");
script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
script_set_attribute(attribute:"exploit_available", value:"false");
script_set_attribute(attribute:"vuln_publication_date", value:"2019/05/20");
script_set_attribute(attribute:"patch_publication_date", value:"2024/01/16");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/16");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:esm");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:esm");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.04");
script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:23.10");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libzookeeper-java");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libzookeeper-mt-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libzookeeper-mt2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libzookeeper-st-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libzookeeper-st2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libzookeeper2");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python-zookeeper");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:python3-zookeeper");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:zookeeper");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:zookeeper-bin");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:zookeeperd");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Ubuntu Local Security Checks");
script_copyright(english:"Ubuntu Security Notice (C) 2024 Canonical, Inc. / NASL script (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");
exit(0);
}
include('debian_package.inc');
if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_release = get_kb_item('Host/Ubuntu/release');
if ( isnull(os_release) ) audit(AUDIT_OS_NOT, 'Ubuntu');
os_release = chomp(os_release);
if (! ('16.04' >< os_release || '18.04' >< os_release || '20.04' >< os_release || '22.04' >< os_release || '23.04' >< os_release || '23.10' >< os_release)) audit(AUDIT_OS_NOT, 'Ubuntu 16.04 / 18.04 / 20.04 / 22.04 / 23.04 / 23.10', 'Ubuntu ' + os_release);
if ( ! get_kb_item('Host/Debian/dpkg-l') ) audit(AUDIT_PACKAGE_LIST_MISSING);
var 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, 'Ubuntu', cpu);
var pkgs = [
{'osver': '16.04', 'pkgname': 'libzookeeper-java', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'libzookeeper-mt-dev', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'libzookeeper-mt2', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'libzookeeper-st-dev', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'libzookeeper-st2', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'libzookeeper2', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'python-zookeeper', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'zookeeper', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'zookeeper-bin', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '16.04', 'pkgname': 'zookeeperd', 'pkgver': '3.4.8-1ubuntu0.1~esm2'},
{'osver': '18.04', 'pkgname': 'libzookeeper-java', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'libzookeeper-mt-dev', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'libzookeeper-mt2', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'libzookeeper-st-dev', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'libzookeeper-st2', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'python-zookeeper', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'zookeeper', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'zookeeper-bin', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '18.04', 'pkgname': 'zookeeperd', 'pkgver': '3.4.13-3ubuntu0.1~esm1'},
{'osver': '20.04', 'pkgname': 'libzookeeper-java', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'libzookeeper-mt-dev', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'libzookeeper-mt2', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'libzookeeper-st-dev', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'libzookeeper-st2', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'python3-zookeeper', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'zookeeper', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'zookeeper-bin', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '20.04', 'pkgname': 'zookeeperd', 'pkgver': '3.4.13-5ubuntu0.1'},
{'osver': '22.04', 'pkgname': 'libzookeeper-java', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'libzookeeper-mt-dev', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'libzookeeper-mt2', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'libzookeeper-st-dev', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'libzookeeper-st2', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'python3-zookeeper', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'zookeeper', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'zookeeper-bin', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '22.04', 'pkgname': 'zookeeperd', 'pkgver': '3.4.13-6ubuntu4.1'},
{'osver': '23.04', 'pkgname': 'libzookeeper-java', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'libzookeeper-mt-dev', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'libzookeeper-mt2', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'libzookeeper-st-dev', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'libzookeeper-st2', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'python3-zookeeper', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'zookeeper', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'zookeeper-bin', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.04', 'pkgname': 'zookeeperd', 'pkgver': '3.8.0-10ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'libzookeeper-java', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'libzookeeper-mt-dev', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'libzookeeper-mt2', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'libzookeeper-st-dev', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'libzookeeper-st2', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'python3-zookeeper', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'zookeeper', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'zookeeper-bin', 'pkgver': '3.8.0-11ubuntu0.1'},
{'osver': '23.10', 'pkgname': 'zookeeperd', 'pkgver': '3.8.0-11ubuntu0.1'}
];
var flag = 0;
foreach package_array ( pkgs ) {
var osver = NULL;
var pkgname = NULL;
var pkgver = NULL;
if (!empty_or_null(package_array['osver'])) osver = package_array['osver'];
if (!empty_or_null(package_array['pkgname'])) pkgname = package_array['pkgname'];
if (!empty_or_null(package_array['pkgver'])) pkgver = package_array['pkgver'];
if (osver && pkgname && pkgver) {
if (ubuntu_check(osver:osver, pkgname:pkgname, pkgver:pkgver)) flag++;
}
}
if (flag)
{
security_report_v4(
port : 0,
severity : SECURITY_WARNING,
extra : ubuntu_report_get()
);
exit(0);
}
else
{
var tested = ubuntu_pkg_tests_get();
if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'libzookeeper-java / libzookeeper-mt-dev / libzookeeper-mt2 / etc');
}
Vendor | Product | Version | CPE |
---|---|---|---|
canonical | ubuntu_linux | 16.04 | cpe:/o:canonical:ubuntu_linux:16.04:-:esm |
canonical | ubuntu_linux | 18.04 | cpe:/o:canonical:ubuntu_linux:18.04:-:esm |
canonical | ubuntu_linux | 20.04 | cpe:/o:canonical:ubuntu_linux:20.04:-:lts |
canonical | ubuntu_linux | 22.04 | cpe:/o:canonical:ubuntu_linux:22.04:-:lts |
canonical | ubuntu_linux | 23.04 | cpe:/o:canonical:ubuntu_linux:23.04 |
canonical | ubuntu_linux | 23.10 | cpe:/o:canonical:ubuntu_linux:23.10 |
canonical | ubuntu_linux | libzookeeper-java | p-cpe:/a:canonical:ubuntu_linux:libzookeeper-java |
canonical | ubuntu_linux | libzookeeper-mt-dev | p-cpe:/a:canonical:ubuntu_linux:libzookeeper-mt-dev |
canonical | ubuntu_linux | libzookeeper-mt2 | p-cpe:/a:canonical:ubuntu_linux:libzookeeper-mt2 |
canonical | ubuntu_linux | libzookeeper-st-dev | p-cpe:/a:canonical:ubuntu_linux:libzookeeper-st-dev |
4.3 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:N/AC:M/Au:N/C:P/I:N/A:N
9.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
8.4 High
AI Score
Confidence
Low
0.004 Low
EPSS
Percentile
72.6%