CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
EPSS
Percentile
65.9%
The remote Debian 11 / 12 host has packages installed that are affected by a vulnerability as referenced in the dsa-5472 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 80900
#
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory dsa-5472. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('compat.inc');
if (description)
{
script_id(179628);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/26");
script_cve_id("CVE-2023-37464");
script_name(english:"Debian DSA-5472-1 : cjose - security update");
script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
script_set_attribute(attribute:"description", value:
"The remote Debian 11 / 12 host has packages installed that are affected by a vulnerability as referenced in the dsa-5472
advisory.
- OpenIDC/cjose is a C library implementing the Javascript Object Signing and Encryption (JOSE). The AES GCM
decryption routine incorrectly uses the Tag length from the actual Authentication Tag provided in the JWE.
The spec says that a fixed length of 16 octets must be applied. Therefore this bug allows an attacker to
provide a truncated Authentication Tag and to modify the JWE accordingly. Users should upgrade to a
version >= 0.6.2.2. Users unable to upgrade should avoid using AES GCM encryption and replace it with
another encryption algorithm (e.g. AES CBC). (CVE-2023-37464)
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=1041423");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/source-package/cjose");
script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2023/dsa-5472");
script_set_attribute(attribute:"see_also", value:"https://security-tracker.debian.org/tracker/CVE-2023-37464");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bullseye/cjose");
script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/bookworm/cjose");
script_set_attribute(attribute:"solution", value:
"Upgrade the cjose packages.
For the stable distribution (bookworm), this problem has been fixed in version 0.6.2.1-1+deb12u1.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:C/A:N");
script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-37464");
script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
script_set_attribute(attribute:"exploit_available", value:"true");
script_set_attribute(attribute:"vuln_publication_date", value:"2023/07/14");
script_set_attribute(attribute:"patch_publication_date", value:"2023/08/08");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/08/09");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcjose-dev");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libcjose0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:11.0");
script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:12.0");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Debian Local Security Checks");
script_copyright(english:"This script is Copyright (C) 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/Debian/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);
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);
var debian_release = get_kb_item('Host/Debian/release');
if ( isnull(debian_release) ) audit(AUDIT_OS_NOT, 'Debian');
debian_release = chomp(debian_release);
if (! preg(pattern:"^(11)\.[0-9]+|^(12)\.[0-9]+", string:debian_release)) audit(AUDIT_OS_NOT, 'Debian 11.0 / 12.0', 'Debian ' + 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': '11.0', 'prefix': 'libcjose-dev', 'reference': '0.6.1+dfsg1-1+deb11u1'},
{'release': '11.0', 'prefix': 'libcjose0', 'reference': '0.6.1+dfsg1-1+deb11u1'},
{'release': '12.0', 'prefix': 'libcjose-dev', 'reference': '0.6.2.1-1+deb12u1'},
{'release': '12.0', 'prefix': 'libcjose0', 'reference': '0.6.2.1-1+deb12u1'}
];
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, 'libcjose-dev / libcjose0');
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-37464
bugs.debian.org/cgi-bin/bugreport.cgi?bug=1041423
packages.debian.org/source/bookworm/cjose
packages.debian.org/source/bullseye/cjose
security-tracker.debian.org/tracker/CVE-2023-37464
security-tracker.debian.org/tracker/source-package/cjose
www.debian.org/security/2023/dsa-5472