The version of Citrix Workspace installed on the remote host is prior to 2302, It is, therefore, affected by a privilege escalation vulnerability. A local attacker can take over the session of another user using a vulnerable version of Citrix Workspace App for Linux.
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.
##
include('compat.inc');
if (description)
{
script_id(171596);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2023/09/04");
script_cve_id("CVE-2023-24486");
script_xref(name:"IAVA", value:"2023-A-0080");
script_name(english:"Citrix Workspace App for Linux Privilege Escalation (CTX477618)");
script_set_attribute(attribute:"synopsis", value:
"The remote device is affected by a privilege escalation vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of Citrix Workspace installed on the remote host is prior to 2302, It is, therefore, affected by a
privilege escalation vulnerability. A local attacker can take over the session of another user using a vulnerable
version of Citrix Workspace App for Linux.
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://support.citrix.com/article/CTX477618");
script_set_attribute(attribute:"solution", value:
"Upgrade to Citrix Workspace App for Linux 2302 or later.");
script_set_attribute(attribute:"agent", value:"unix");
script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/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:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/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-2023-24486");
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:"2023/02/14");
script_set_attribute(attribute:"patch_publication_date", value:"2023/02/01");
script_set_attribute(attribute:"plugin_publication_date", value:"2023/02/17");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"cpe:/a:citrix:workspace");
script_set_attribute(attribute:"stig_severity", value:"I");
script_set_attribute(attribute:"thorough_tests", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Misc.");
script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("citrix_workspace_app_nix_installed.nbin");
script_require_keys("installed_sw/Citrix Workspace", "Host/uname");
exit(0);
}
include('vcf.inc');
var uname = get_kb_item_or_exit('Host/uname');
if ('Linux' >!< uname)
audit(AUDIT_HOST_NOT, 'a Linux-based operating system');
var app_info = vcf::get_app_info(app:'Citrix Workspace');
# 2302 = 23.02.0.10, can be seen in filename at (at least until the next release):
# https://www.citrix.com/downloads/workspace-app/linux/workspace-app-for-linux-latest.html
var constraints = [
{ 'fixed_version' : '23.02.0.10', 'fixed_display' : '2302 (23.02.0.10)'}
];
vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_WARNING);