7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.4 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
19.8%
The version of Atlassian Confluence Server running on the remote host is 7.13.x prior to 7.19.17, 8.0.x prior to 8.5.4, or 8.6.x prior to 8.6.2. It is, therefore, affected by a denial of service (DoS) vulnerability as referenced in the CONFSERVER-93623 advisory. The vulnerability lies in the com.squareup.okio:okio-jvm dependency of Confluence Server, which is known to be vulnerable to DoS when using the GzipSource class to handle a crafted GZIP archive. This is due to GzipSource not handling an exception that might be raised when parsing a malformed gzip buffer.
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(188065);
script_version("1.2");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/06/05");
script_cve_id("CVE-2023-3635");
script_name(english:"Atlassian Confluence 7.13 < 7.19.17 / 8.0.x < 8.4.5 / 8.5.x < 8.5.4 / 8.6.x < 8.6.2 DoS (CONFSERVER-93623)");
script_set_attribute(attribute:"synopsis", value:
"The remote Atlassian Confluence host is missing a security update.");
script_set_attribute(attribute:"description", value:
"The version of Atlassian Confluence Server running on the remote host is 7.13.x prior to 7.19.17, 8.0.x prior to 8.5.4,
or 8.6.x prior to 8.6.2. It is, therefore, affected by a denial of service (DoS) vulnerability as referenced in the CONFSERVER-93623
advisory. The vulnerability lies in the com.squareup.okio:okio-jvm dependency of Confluence Server, which is known to be
vulnerable to DoS when using the GzipSource class to handle a crafted GZIP archive. This is due to GzipSource not
handling an exception that might be raised when parsing a malformed gzip buffer.
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://jira.atlassian.com/browse/CONFSERVER-93623");
script_set_attribute(attribute:"solution", value:
"Upgrade to Atlassian Confluence version 7.19.17, 8.5.4, 8.6.2 or later.");
script_set_attribute(attribute:"agent", value:"all");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C");
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:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-3635");
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:"2024/01/10");
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:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/a:atlassian:confluence");
script_set_attribute(attribute:"thorough_tests", value:"true");
script_set_attribute(attribute:"enable_cgi_scanning", value:"true");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"CGI abuses");
script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("confluence_detect.nasl", "confluence_nix_installed.nbin", "confluence_win_installed.nbin");
script_require_keys("installed_sw/Atlassian Confluence");
exit(0);
}
include('vcf.inc');
var app_info = vcf::combined_get_app_info(app:'Atlassian Confluence');
var constraints = [
{ 'min_version' : '7.19.13', 'fixed_version' : '7.19.17'},
{ 'min_version' : '8.0.0', 'fixed_version' : '8.4.5', 'fixed_display' : '8.5.4' },
{ 'min_version' : '8.5.0', 'fixed_version' : '8.5.4' },
{ 'min_version' : '8.6.0', 'fixed_version' : '8.6.2' }
];
vcf::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_HOLE
);
Vendor | Product | Version | CPE |
---|---|---|---|
atlassian | confluence | cpe:/a:atlassian:confluence |
7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.4 High
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
19.8%