CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
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
AI Score
Confidence
Low
The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-96102 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.
##
include('compat.inc');
if (description)
{
script_id(202696);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/19");
script_cve_id("CVE-2021-35517");
script_xref(name:"IAVA", value:"2024-A-0412");
script_name(english:"Atlassian Confluence 7.19.23 < 7.19.25 / 8.5.x < 8.5.12 / 8.9.x < 8.9.4 (CONFSERVER-96102)");
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 affected by a vulnerability as referenced in
the CONFSERVER-96102 advisory.
- When reading a specially crafted TAR archive, Compress can be made to allocate large amounts of memory
that finally leads to an out of memory error even for very small inputs. This could be used to mount a
denial of service attack against services that use Compress' tar package. (CVE-2021-35517)
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-96102");
script_set_attribute(attribute:"solution", value:
"Upgrade to Atlassian Confluence version 7.19.25, 8.5.12, 8.9.4 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:P");
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:N/I:N/A:H");
script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-35517");
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:"2021/07/13");
script_set_attribute(attribute:"patch_publication_date", value:"2024/07/03");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/07/19");
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_set_attribute(attribute:"stig_severity", value:"I");
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' : '7.19.23', 'fixed_version' : '7.19.25' },
{ 'min_version' : '8.5.10', 'fixed_version' : '8.5.12' },
{ 'min_version' : '8.9.2', 'fixed_version' : '8.9.4', 'fixed_display' : '8.9.4 (Data Center only)' }
];
vcf::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_WARNING
);
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
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
AI Score
Confidence
Low