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
EPSS
Percentile
90.2%
The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-96100 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(202691);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/07/19");
script_cve_id("CVE-2021-35515");
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-96100)");
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-96100 advisory.
- When reading a specially crafted 7Z archive, the construction of the list of codecs that decompress an
entry can result in an infinite loop. This could be used to mount a denial of service attack against
services that use Compress' sevenz package. (CVE-2021-35515)
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-96100");
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-2021-35515");
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
EPSS
Percentile
90.2%