3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
5.3 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.5%
The version of GitLab installed on the remote host is affected by a vulnerability, as follows:
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(187472);
script_version("1.1");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/05/17");
script_cve_id("CVE-2021-39887");
script_name(english:"GitLab 8.4 < 14.1.7 / 14.2 < 14.2.5 / 14.3 < 14.3.1 (CVE-2021-39887)");
script_set_attribute(attribute:"synopsis", value:
"The version of GitLab installed on the remote host is affected by a vulnerability.");
script_set_attribute(attribute:"description", value:
"The version of GitLab installed on the remote host is affected by a vulnerability, as follows:
- A stored Cross-Site Scripting vulnerability in the GitLab Flavored Markdown in GitLab CE/EE version 8.4
and above allowed an attacker to execute arbitrary JavaScript code on the victim's behalf.
(CVE-2021-39887)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
# https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39887.json
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?2f0e231b");
script_set_attribute(attribute:"see_also", value:"https://gitlab.com/gitlab-org/gitlab/-/issues/332903");
script_set_attribute(attribute:"see_also", value:"https://hackerone.com/reports/1218174");
script_set_attribute(attribute:"solution", value:
"Upgrade to GitLab version 14.1.7, 14.2.5, 14.3.1 or later.");
script_set_attribute(attribute:"agent", value:"unix");
script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:N/I:P/A:N");
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:L/UI:R/S:C/C:L/I:L/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-2021-39887");
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:"2021/09/30");
script_set_attribute(attribute:"patch_publication_date", value:"2021/09/30");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/01/02");
script_set_attribute(attribute:"plugin_type", value:"combined");
script_set_attribute(attribute:"cpe", value:"cpe:/a:gitlab:gitlab");
script_set_attribute(attribute:"generated_plugin", value:"current");
script_set_attribute(attribute:"thorough_tests", 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("gitlab_webui_detect.nbin", "gitlab_nix_installed.nbin");
script_require_keys("installed_sw/GitLab");
exit(0);
}
include('vcf.inc');
var app = 'GitLab';
var app_info = vcf::combined_get_app_info(app:app);
if (report_paranoia < 2 && max_index(app_info.parsed_version[0]) < 3 && app_info.version =~ "^14\.(1|2|3)$")
if (!empty_or_null(app_info.port))
audit(AUDIT_POTENTIAL_VULN, app, app_info.version, app_info.port);
else
audit(AUDIT_POTENTIAL_VULN, app, app_info.version);
var constraints = [
{ 'min_version' : '8.4', 'fixed_version' : '14.1.7' },
{ 'min_version' : '14.2', 'fixed_version' : '14.2.5' },
{ 'min_version' : '14.3', 'fixed_version' : '14.3.1' }
];
vcf::check_version_and_report(
app_info:app_info,
constraints:constraints,
severity:SECURITY_NOTE,
flags:{'xss':TRUE}
);
3.5 Low
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
SINGLE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:S/C:N/I:P/A:N
7.3 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:N
5.3 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
40.5%